Bifunctional protein degraders are heterobifunctional compounds that simultaneously bind a target protein and an E3 ligase complex, resulting in the transfer of ubiquitin and initiating a process ultimately causing the proteasomal degradation of the target protein. By catalyzing the formation of a ternary complex involving an E3 ligase receptor, a protein of interest, and a small molecule, Bifunctional protein degraders may yield enhanced substrate specificity. There is an ongoing need for selective Bifunctional protein degraders for treating and/or preventing cancer and other diseases responsive to the inhibition or degradation of CBP/p300 proteins. p300 selective degraders can display strong selectivity for p300 over CBP and demonstrate a time-dependent loss of p300, enhancer acetylation, and transcriptional output in cancer cells both in vitro and in vivo with limited toxicity to untransformed cells. Enhanced dependency on p300 is found across numerous cancer lineages.
In certain aspects, the present disclosure provides compounds of Formula I:
T-L-C (I),
and pharmaceutically acceptable salts, solvates, or stereoisomers thereof, wherein: C is of Formula I-1
or
wherein each of the variables in Formulae I-1, I-2, I-3-i, I-3-ii, I-3-iii, I-3-iv, I-3-v, and I-3-vi is described, embodied, and exemplified herein.
In certain aspects, the present disclosure provides pharmaceutical compositions comprising a compound disclosed herein, and a pharmaceutically acceptable excipient.
In certain aspects, the present disclosure provides methods of degrading a protein in a subject or biological sample comprising administering a compound disclosed herein to the subject or contacting the biological sample with the compound disclosed herein.
In certain aspects, the present disclosure provides uses of a compound disclosed herein in the manufacture of a medicament for degrading a protein in a subject or biological sample.
In certain aspects, the present disclosure provides compounds disclosed herein for use in degrading a protein in a subject or biological sample.
In certain aspects, the present disclosure provides methods for treating a disease or disorder.
In certain aspects, the present disclosure provides uses of the compounds disclosed herein in the manufacture of a medicament for treating a disease or disorder.
In certain aspects, the present disclosure provides compounds disclosed herein for treating a disease or disorder.
The present disclosure relates to compounds that show activity in degrading certain proteins (e.g., p300/CBP), and pharmaceutical compositions comprising such compounds.
In certain aspects, the present disclosure provides compounds of Formula I:
T-L-C (I),
and pharmaceutically acceptable salts, solvates, or stereoisomers thereof, wherein:
wherein:
hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-4 carbocyclyl, or 3- to 4-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru, and one of RB1, RB2, RB3, RB4, and RB5 is
denotes attachment to L;
denotes attachment to L;
denotes attachment to L;
denotes attachment to L; and at least one of M1, M2, M3, and M4 is N or
denotes attachment to L;
denotes attachment to L; and
In certain embodiments, the present disclosure provides compounds of Formula I:
T-L-C (I),
and pharmaceutically acceptable salts, solvates, or stereoisomers thereof, wherein:
hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-4 carbocyclyl, or 3- to 4-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru, and one of RB, RB2, RB3, RB4, and RB5 is
or
denotes attachment to L;
denotes attachment to L;
denotes attachment to L;
denotes attachment to L; and at least one of M1, M2, M3, and M4 is N or
RM2, RM3, and or RM4 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, 5- to 10-membered heteroaryl, —SRb, —S(═O)Ra, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —NRcS(═O)2Ra, —NRcS(═O)Ra, —NRcS(═O)2ORb, —NRcS(═O)2NRcRd—NRbC(═O)NRcRd, —NRbC(═O)Ra, —NRbC(═O)ORb, —OS(═O)2Ra, —OS(═O)2ORb, —OS(═O)2NRcRd, —OC(═O)Ra, —OC(═O)ORb, —OC(═O)NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru;
denotes attachment to L;
denotes attachment to L; and
In certain embodiments, C is of Formula I-1
hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-4 carbocyclyl, or 3- to 4-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru, and one of RB1, RB2, RB3, RB4, and RB5 is
In certain embodiments,
hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-4 carbocyclyl, or 3- to 4-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted
or
In certain embodiments, X is absent, CRX1, C(RX1)2, NRX2 or O, as valency permits.
In certain embodiments, X is absent.
In certain embodiments, X is CRXi, as valency permits.
In certain embodiments, X is C(RX1)2.
In certain embodiments, X is NRX2, and L″ is absent, and i) RX2 and RB5, together with the atoms to which they are bonded, form Ring C.
In certain embodiments, X is NRX2, and L″ is absent, and ii) B3 is absent.
In certain embodiments, X is NRX2, and L″ is absent, and iii) RD1 and one RD together with the carbon atoms to which they are bonded, form C3-4 carbocycle or 3- to 4-membered heterocycle, wherein the carbocycle or heterocycle is optionally substituted with one or more Ru.
In certain embodiments, X is O, and L″ is absent, and i) RX2 and RB5, together with the atoms to which they are bonded, form Ring C.
In certain embodiments, X is O, and L″ is absent, and ii) B3 is absent.
In certain embodiments, X is O, and L″ is absent, and iii) RD1 and one RD, together with the carbon atoms to which they are bonded, form C3-4 carbocycle or 3- to 4-membered heterocycle, wherein the carbocycle or heterocycle is optionally substituted with one or more Ru.
In certain embodiments, each RX1 is independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C3-4 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), or cyclobutenyl (C4)), or 3- to 4-membered heterocyclyl (e.g., heterocyclyl comprising one 3- to 4-membered rings and 1 heteroatom selected from N, O, and S), wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, two RX1 together form an oxo.
In certain embodiments, two RX1, together with the carbon atom to which they are bonded, form C3-4 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), or cyclobutenyl (C4)) or 3- to 4-membered heterocyclyl (e.g., heterocyclyl comprising one 3- to 4-membered rings and 1 heteroatom selected from N, O, and S), wherein the carbocyclyl or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, RX2 is hydrogen, C1-3 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), or i-propyl (C3)), C3-4 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), or cyclobutenyl (C4)), or 3- to 4-membered heterocyclyl (e.g., heterocyclyl comprising one 3- to 4-membered rings and 1 heteroatom selected from N, O, and S), wherein the alkyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, B1 is CRB1, N, NRB1′ O, or S. In certain embodiments, B1 is CRB1. In certain embodiments, B1 is N. In certain embodiments, B1 is NRB′. In certain embodiments, B1 is O.
In certain embodiments, B2 is CRB2, N, NRB2′ O, or S. In certain embodiments, B2 is CRB2. In certain embodiments, B2 is N. In certain embodiments, B2 is NRB2′. In certain embodiments, B2 is O.
In certain embodiments, B3 is absent, CRB3, or N. In certain embodiments, B3 is absent. In certain embodiments, B3 is CRB3. In certain embodiments, B3 is N.
In certain embodiments, B4 is CRB4, N, NRB4′ O, or S. In certain embodiments, B4 is CRB4. In certain embodiments, B4 is N. In certain embodiments, B4 is NRB4′. In certain embodiments, B4 is O.
In certain embodiments, B5 is CRB, N, NRBs' O, or S. In certain embodiments, B5 is CRB5. In certain embodiments, B5 is N. In certain embodiments, B5 is NRB5′. In certain embodiments, B5 is O.
In certain embodiments, B6 is C or N. In certain embodiments, B6 is C. In certain embodiments, B6 is N.
In certain embodiments, C is of Formula I-1-i or I-1-ii
In certain embodiments, C is of Formula I-1-i
In certain embodiments, C is of Formula I-1-i″
In certain embodiments, C is of Formula T-1-i″-1
In certain embodiments, none of B1, B3, B4, and B5 is N.
In certain embodiments, one of B1 and B5 is N.
In certain embodiments, RBi, RB3, RB4, and RB5, RBi, RB3, and RB4, RB3, RB4, and RB5 are independently hydrogen, halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C3-4 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), or cyclobutenyl (C4)), or 3- to 4-membered heterocyclyl (e.g., heterocyclyl comprising one 3- to 4-membered rings and 1 heteroatom selected from N, O, and S), wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, RB1, RB3, RB4, and RB5, RB1, RB3, and RB4, RB3, RB4, and RB5 are independently hydrogen or C1-6 alkyl.
In certain embodiments, RB4 and RB5, together with the carbon atoms to which they are bonded, form 3- to 12-membered heterocyclyl (e.g., heterocyclyl comprising one or two rings and 1-5 heteroatoms selected from N, O, and S) optionally substituted with one or more Ru.
In certain embodiments, RB4 and RB5, together with the carbon atoms to which they are bonded, form 3- to 12-membered heterocyclyl or 5- or 6-membered heteroaryl, wherein the hetercyclyl or heteroaryl is optionally substituted with one or more Ru, and is optionally attached to L.
In certain embodiments, RX1 and RB5, RX1 and RB5′, RX2 and RB5, or RX2 and RBs' together with the atoms to which they are bonded, form Ring C, wherein Ring C is optionally substituted C6 aryl or optionally substituted 5-membered heteroaryl.
In certain embodiments, RX1 and RB5 or R″l and RB5′, together with the atoms to which they are bonded, form Ring C, wherein Ring C is optionally substituted C5-6 carbocyclyl or optionally substituted 5- or 6-membered heterocyclyl.
In certain embodiments, Ring C is optionally substituted with one or more substituents selected from oxo, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, 5- to 10-membered heteroaryl, —SRb, —S(═O)Ra, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —NRcS(═O)2Ra, —NRcS(═O)Ra, —NRcS(═O)2ORb, —NRcS(═O)2NRcRd, —RbC(═O)NRcRd—NRbC(═O)Ra, —NbC(═)ORb, —OS(═O)2Ra, —OS(═O)2ORb, —OS(═O)2NRcRd, —OC(═O)Ra, —OC(═O)ORb, —OC(═O)NRcRd, —C(═O)Ra, —C(═O)ORb, and —C(═O)NRcRd; wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more substituents selected from oxo, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, and 3- to 6-membered heterocyclyl.
In certain embodiments, Ring C is optionally substituted with one or more Ru.
In certain embodiments, Ring C is optionally substituted with one or more RB7, RB8RB7′, RB9, RB10, or RB11.
In certain embodiments, Ru; is RB7, RB8, RB7′, RB8′, RB9, RB10, or RB11
In certain embodiments, C is of Formula I-1-iii
In certain embodiments, B5a is C or N.
In certain embodiments, B5 is Bsa
In certain embodiments, B7 is CRB7, N, NRB7′, O, or S.
In certain embodiments, B8 is CRB8, N, NRB8′, O, or S.
In certain embodiments, at least one of B7 and B8 is N.
In certain embodiments, B7 is NRB7′, and B8 is N.
In certain embodiments, B7 is N and X is N.
In certain embodiments, B8 is N and X is N.
In certain embodiments, C is of Formula I-1-iii-1, I-1-iii-2, I-1-iii-3, or I-1-iii-4
wherein when C is of Formula I-1-iii-4, B7 is O or S.
In certain embodiments, RB7 and RB8 are independently hydrogen, halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C3-4 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), or cyclobutenyl (C4)), or 3- to 4-membered heterocyclyl (e.g., heterocyclyl comprising one 3- to 4-membered rings and 1 heteroatom selected from N, O, and S), wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, RB8 are independently hydrogen or C1-6 alkyl.
In certain embodiments, RB7′ and RB8′ are independently hydrogen, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C3-4 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), or cyclobutenyl (C4)), 3- to 4-membered heterocyclyl (e.g., heterocyclyl comprising one 3- to 4-membered rings and 1 heteroatom selected from N, O, and S), —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, RB7′ and RB8′ are independently hydrogen or C1-6 alkyl.
In certain embodiments, RBi, RB3, and RB4 are independently hydrogen, halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C3-4 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), or cyclobutenyl (C4)), or 3- to 4-membered heterocyclyl (e.g., heterocyclyl comprising one 3- to 4-membered rings and 1 heteroatom selected from N, O, and S), wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, each of RBi, RB3, and RB4 is hydrogen.
In certain embodiments, C is of Formula I-1-iv
In certain embodiments, C is of Formula I-1-iv-1, I-1-iv-2, or I-1-iv-3
In certain embodiments, none of RB9, RB10, and RB11 is N.
In certain embodiments, one of RB9, RB10, and RB11 is N.
In certain embodiments, two of RB9, RB10, and RB11 are N.
In certain embodiments, three of RB9, RB10, and RB11 are N.
In certain embodiments, RB9, RB10, and RB11, when applicable, are independently hydrogen, halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C3-4 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), or cyclobutenyl (C4)), or 3- to 4-membered heterocyclyl (e.g., heterocyclyl comprising one 3- to 4-membered rings and 1 heteroatom selected from N, O, and S), wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, each of RB9, RB10, and RB11, when applicable, is hydrogen.
In certain embodiments, none of RB1, RB2, and RB3 or none of RB1, RB3, and RB4 is N.
In certain embodiments, one of RB1, RB2, and RB3 or one of RB1, RB3, and RB4 is N.
In certain embodiments, two of RB1, RB2, and RB3 or two of RB1, RB3, and RB4 are N.
In certain embodiments, three of RB1, RB2, and RB3 or three of RB1, RB3, and RB4 are N.
In certain embodiments, RB1, RB2, and RB3 or RB1, RB3, and RB4, when applicable, are independently hydrogen, halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C3-4 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), or cyclobutenyl (C4)), or 3- to 4-membered heterocyclyl (e.g., heterocyclyl comprising one 3- to 4-membered rings and 1 heteroatom selected from N, O, and S), wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, each of RBi, RB2, and RB3, or each of RBi, RB2, and RB3 when applicable, is hydrogen.
In certain embodiments, RD1 is hydrogen, deuterium, or C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)) optionally substituted with one or more Ru.
In certain embodiments, RD1 is hydrogen.
In certain embodiments, each RD is independently oxo, hydrogen, halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C3-4 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), or cyclobutenyl (C4)), or 3- to 4-membered heterocyclyl (e.g., heterocyclyl comprising one 3- to 4-membered rings and 1 heteroatom selected from N, O, and S), wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, two RD, together with the carbon atom(s) to which they are bonded, form C3-5 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), or cyclopentenyl (C5)) or 3- or 5-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 5-membered rings and 1-3 heteroatoms selected from N, 0, and S), wherein the carbocyclyl or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, d is an integer from 0 to 6, as valency permits. In certain embodiments, d is 0. In certain embodiments, d is 1. In certain embodiments, d is 2. In certain embodiments, d is 3, as valency permits. In certain embodiments, d is 4, as valency permits. In certain embodiments, d is 5, as valency permits. In certain embodiments, d is 6, as valency permits.
In certain embodiments, d is 0.
In certain embodiments, q is an integer from 0 to 2. In certain embodiments, q is 0.
In certain embodiments, q is 1. In certain embodiments, q is 2.
In certain embodiments, q is 1.
In certain embodiments, T is Formula I-3-i
denotes attachment to L;
In certain embodiments, T is of Formula I-3-i-a
In certain embodiments, T is of Formula I-3-i-b
In certain embodiments, E1 is
In certain embodiments, E2 is
In certain embodiments, E3 is
In certain embodiments, one of E1, E2, and E3 is N. In certain embodiments, two of E1, E2, and E3 are N.
In certain embodiments, RE1, RE2, RE3, and RE4 are independently hydrogen, halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C2-6 alkenyl (e.g., ethenyl (C2), 1-propenyl (C3), 2-propenyl (C3), 1-butenyl (C4), 2-butenyl (C4), butadienyl (C4), pentenyl (C5), pentadienyl (C5), or hexenyl (C6)), C2-6 alkynyl (e.g., ethynyl (C2), 1-propynyl (C3), 2-propynyl (C3), 1-butynyl (C4), 2-butynyl (C4), pentynyl (C5), or hexynyl (C6)), C3-12 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), cyclohexadienyl (C6), cycloheptyl (C7), cycloheptenyl (C7), cycloheptadienyl (C7), cycloheptatrienyl (C7), cyclooctyl (C5), cyclooctenyl (C5), bicyclo[2.2.1]heptanyl (C7), bicyclo[2.2.2]octanyl (C5), cyclononyl (C9), cyclononenyl (C9), cyclodecyl (C10), cyclodecenyl (C10), octahydro-1H-indenyl (C9), decahydronaphthalenyl (C10), or spiro[4.5]decanyl (C10)), 3- to 12-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 8-membered rings and 1-5 heteroatoms selected from N, O, and S), C6-10 aryl (e.g., phenyl or naphthyl), 5- to 10-membered heteroaryl (e.g., heteroaryl comprising one or two 5- or 6-membered rings and 1-5 heteroatoms selected from N, O, and S), —SRb, —S(═O)Ra, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —NRcS(═O)2Ra, —NRcS(═O)Ra, —NRcS(═O)2ORb, —NRcS(═O)2NRcRd—NRbC(═O)NRcRd—NRbC(═O)Ra, —NbC(═)ORb, —OS(═O)2Ra, —OS(═O)2ORb, —OS(═O)2NRcRd, —OC(═O)Ra, —OC(═O)ORb, —OC(═O)NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, RE1, RE2, RE3, and RE4 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, RE1, RE2, RE3, and RE4 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, 3- to 6-membered heterocyclyl, C6 aryl, or 5- to 6-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, RE1, RE2, RE3, and RE4 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, RE1, RE2, RE3, and RE4 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, RE1 and RE3 are independently or RE1 or RE2 is hydrogen, halogen, or C1-6 alkyl optionally substituted with one or more R.
In certain embodiments, RE4 is hydrogen, halogen, —CN, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, or —S(═O)2Ra, wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, F1 is C or N.
In certain embodiments, F2 is NRF2′ or CRF2.
In certain embodiments, F3 is NRF3′, N, or CRF3
In certain embodiments, RF2′ and RF3′ are independently hydrogen, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C2-6 alkenyl (e.g., ethenyl (C2), 1-propenyl (C3), 2-propenyl (C3), 1-butenyl (C4), 2-butenyl (C4), butadienyl (C4), pentenyl (C5), pentadienyl (C5), or hexenyl (C6)), C2-6 alkynyl (e.g., ethynyl (C2), 1-propynyl (C3), 2-propynyl (C3), 1-butynyl (C4), 2-butynyl (C4), pentynyl (C5), or hexynyl (C6)), C3-12 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), cyclohexadienyl (C6), cycloheptyl (C7), cycloheptenyl (C7), cycloheptadienyl (C7), cycloheptatrienyl (C7), cyclooctyl (C5), cyclooctenyl (C5), bicyclo[2.2.1]heptanyl (C7), bicyclo[2.2.2]octanyl (C5), cyclononyl (C9), cyclononenyl (C9), cyclodecyl (C10), cyclodecenyl (C10), octahydro-1H-indenyl (C9), decahydronaphthalenyl (C10), or spiro[4.5]decanyl (C10)), 3- to 12-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 8-membered rings and 1-5 heteroatoms selected from N, O, and S), C6-10 aryl (e.g., phenyl or naphthyl), 5- to 10-membered heteroaryl (e.g., heteroaryl comprising one or two 5- or 6-membered rings and 1-5 heteroatoms selected from N, O, and S), —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru.
In certain embodiments, RF2′ and RF3′ are independently hydrogen, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, 3- to 6-membered heterocyclyl, C6 aryl, 5- to 6-membered heteroaryl, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, RF2′ and RF3′ are independently hydrogen, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkenyl, alkynyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, RF2′ and RF3′ are independently hydrogen, C1-6 alkyl, C3-6 carbocyclyl, 3- to 6-membered heterocyclyl, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, RF2′ is hydrogen or C1-6 alkyl optionally substituted with one or more R.
In certain embodiments, RF2 and RF3 are independently hydrogen, halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C2-6 alkenyl (e.g., ethenyl (C2), 1-propenyl (C3), 2-propenyl (C3), 1-butenyl (C4), 2-butenyl (C4), butadienyl (C4), pentenyl (C5), pentadienyl (C5), or hexenyl (C6)), C2-6 alkynyl (e.g., ethynyl (C2), 1-propynyl (C3), 2-propynyl (C3), 1-butynyl (C4), 2-butynyl (C4), pentynyl (C5), or hexynyl (C6)), C3-12 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), cyclohexadienyl (C6), cycloheptyl (C7), cycloheptenyl (C7), cycloheptadienyl (C7), cycloheptatrienyl (C7), cyclooctyl (C5), cyclooctenyl (C5), bicyclo[2.2.1]heptanyl (C7), bicyclo[2.2.2]octanyl (C5), cyclononyl (C9), cyclononenyl (C9), cyclodecyl (C10), cyclodecenyl (C10), octahydro-1H-indenyl (C9), decahydronaphthalenyl (C10), or spiro[4.5]decanyl (C10)), 3- to 12-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 8-membered rings and 1-5 heteroatoms selected from N, O, and S), C6-10 aryl (e.g., phenyl or naphthyl), 5- to 10-membered heteroaryl (e.g., heteroaryl comprising one or two 5- or 6-membered rings and 1-5 heteroatoms selected from N, O, and S), —SRb, —S(═O)Ra, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —NRcS(═O)2Ra, —NRcS(═O)Ra, —NRcS(═O)2ORb, —NRcS(═O)2NRcRd, —RbC(═O)NRcRd—NRbC(═O)Ra, —NRbC(O)ORb, —OS(═O)2Ra, —OS(═O)2ORb, —OS(═O)2NRcRd, —OC(═O)Ra, —OC(═O)ORb, —OC(═O)NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, RF2 and RF3 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, RF2 and RF3 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, 3- to 6-membered heterocyclyl, C6 aryl, or 5- to 6-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, RF2 and RF3 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, RF2 and RF3 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, RF3 is hydrogen.
In certain embodiments, RF4 is —C(═O)NR3aR3b or 5- to 6-membered heteroaryl (e.g., heteroaryl comprising one 5- or 6-membered ring and 1-3 heteroatoms selected from N, O, and S) optionally substituted with one or more R.
In certain embodiments, R3a and R3b are independently hydrogen, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C2-6 alkenyl (e.g., ethenyl (C2), 1-propenyl (C3), 2-propenyl (C3), 1-butenyl (C4), 2-butenyl (C4), butadienyl (C4), pentenyl (C5), pentadienyl (C5), or hexenyl (C6)), C2-6 alkynyl (e.g., ethynyl (C2), 1-propynyl (C3), 2-propynyl (C3), 1-butynyl (C4), 2-butynyl (C4), pentynyl (C5), or hexynyl (C6)), C3-12 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), cyclohexadienyl (C6), cycloheptyl (C7), cycloheptenyl (C7), cycloheptadienyl (C7), cycloheptatrienyl (C7), cyclooctyl (C5), cyclooctenyl (C5), bicyclo[2.2.1]heptanyl (C7), bicyclo[2.2.2]octanyl (C5), cyclononyl (C9), cyclononenyl (C9), cyclodecyl (C10), cyclodecenyl (C10), octahydro-1H-indenyl (C9), decahydronaphthalenyl (C10), or spiro[4.5]decanyl (C10)), 3- to 12-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 8-membered rings and 1-5 heteroatoms selected from N, O, and S), C6-10 aryl (e.g., phenyl or naphthyl), 5- to 10-membered heteroaryl (e.g., heteroaryl comprising one or two 5- or 6-membered rings and 1-5 heteroatoms selected from N, O, and S), —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru.
In certain embodiments, R3a and R3b are independently hydrogen, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, 3- to 6-membered heterocyclyl, C6 aryl, 5- to 6-membered heteroaryl, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, R3a and R3b are independently hydrogen, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkenyl, alkynyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, R3a and R3b are independently hydrogen, C1-6 alkyl, C3-6 carbocyclyl, 3- to 6-membered heterocyclyl, —S(═O)2Ra, —S(═O)20Rb, —S(═O)2NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, R3a and R3b, together with the nitrogen atom to which they are attached, form 3- to 12-membered heterocycle (e.g., heterocyclyl comprising one or two 3- to 8-membered rings and 1-5 heteroatoms selected from N, O, and S) or 5- to 10-membered heteroaryl (e.g., heteroaryl comprising one or two 5- or 6-membered rings and 1-5 heteroatoms selected from N, O, and S), wherein the heterocycle or heteroaryl is optionally substituted with one or more R.
In certain embodiments, R3a and R3b are independently hydrogen or C1-6 alkyl optionally substituted with one or more R.
In certain embodiments, T is of Formula I-3-ii
denotes attachment to L;
In certain embodiments, T is of Formula I-3-ii-a
In certain embodiments, G1 is
In certain embodiments G2 is
In certain embodiments, G3 is
In certain embodiments, RG1, RG2, RG3, and RG4 are independently hydrogen, halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C2-6 alkenyl (e.g., ethenyl (C2), 1-propenyl (C3), 2-propenyl (C3), 1-butenyl (C4), 2-butenyl (C4), butadienyl (C4), pentenyl (C5), pentadienyl (C5), or hexenyl (C6)), C2-6 alkynyl (e.g., ethynyl (C2), 1-propynyl (C3), 2-propynyl (C3), 1-butynyl (C4), 2-butynyl (C4), pentynyl (C5), or hexynyl (C6)), C3-12 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), cyclohexadienyl (C6), cycloheptyl (C7), cycloheptenyl (C7), cycloheptadienyl (C7), cycloheptatrienyl (C7), cyclooctyl (C5), cyclooctenyl (C5), bicyclo[2.2.1]heptanyl (C7), bicyclo[2.2.2]octanyl (C5), cyclononyl (C9), cyclononenyl (C9), cyclodecyl (C10), cyclodecenyl (C10), octahydro-1H-indenyl (C9), decahydronaphthalenyl (C10), or spiro[4.5]decanyl (C10)), 3- to 12-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 8-membered rings and 1-5 heteroatoms selected from N, O, and S), C6-10 aryl (e.g., phenyl or naphthyl), 5- to 10-membered heteroaryl (e.g., heteroaryl comprising one or two 5- or 6-membered rings and 1-5 heteroatoms selected from N, O, and S), —SRb, —S(═O)Ra, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —NRcS(═O)2Ra, —NRcS(═O)Ra, —NRcS(═O)2ORb, —NRcS(═O)2NRcRd, —RbC(═O)NRcRd—NRbC(═O)Ra, —NbC(═)ORb, —OS(═O)2Ra, —OS(═O)2ORb, —OS(═O)2NRcRd, —OC(═O)Ra, —OC(═O)ORb, —OC(═O)NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, RGi, RG2, RG3, and RG4 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, RGi, RG2, RG3, and RG4 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, 3- to 6-membered heterocyclyl, C6 aryl, or 5- to 6-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, RGi, RG2, RG3, and RG4 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, RG1, RG2, RG3, and RG4 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, RG1 and RG3 are both hydrogen.
In certain embodiments, RG4 is hydrogen, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, or 3- to 12-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, alkenyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, H1 is C(RHi)2, NRH11′ or O.
In certain embodiments, H2 is C(RH2)2, NRH2′ or O.
In certain embodiments, H1 is NRH11′ and H2 is NRH2′
In certain embodiments, each occurrence of RH1 and RH2 are independently hydrogen, halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C2-6 alkenyl (e.g., ethenyl (C2), 1-propenyl (C3), 2-propenyl (C3), 1-butenyl (C4), 2-butenyl (C4), butadienyl (C4), pentenyl (C5), pentadienyl (C5), or hexenyl (C6)), C2-6 alkynyl (e.g., ethynyl (C2), 1-propynyl (C3), 2-propynyl (C3), 1-butynyl (C4), 2-butynyl (C4), pentynyl (C5), or hexynyl (C6)), C3-12 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), cyclohexadienyl (C6), cycloheptyl (C7), cycloheptenyl (C7), cycloheptadienyl (C7), cycloheptatrienyl (C7), cyclooctyl (C5), cyclooctenyl (C5), bicyclo[2.2.1]heptanyl (C7), bicyclo[2.2.2]octanyl (C5), cyclononyl (C9), cyclononenyl (C9), cyclodecyl (C10), cyclodecenyl (C10), octahydro-1H-indenyl (C9), decahydronaphthalenyl (C10), or spiro[4.5]decanyl (C10)), 3- to 12-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 8-membered rings and 1-5 heteroatoms selected from N, O, and S), C6-10 aryl (e.g., phenyl or naphthyl), or 5- to 10-membered heteroaryl (e.g., heteroaryl comprising one or two 5- or 6-membered rings and 1-5 heteroatoms selected from N, O, and S), wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, each occurrence of RH1 and RH2 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, 3- to 6-membered heterocyclyl, C6 aryl, or 5- to 6-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru.
In certain embodiments, each occurrence of RH1 and RH2 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, each occurrence of RH1 and RH2 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, RH1′ and RH2′ are independently C1-6 alkyl
In certain embodiments, two RHi or two RH2, together with the carbon atom to which they are attached, form C3-6 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), or cyclohexadienyl (C6)) or 3- to 6-membered heterocyclyl (e.g., heterocyclyl comprising one 3- to 6-membered ring and 1-3 heteroatoms selected from N, O, and S), wherein the carbocycle or heterocycle is optionally substituted with one or more R.
In certain embodiments, RH11′ and RH2′ are independently hydrogen, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C3-6 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), or cyclohexadienyl (C6)), 3- to 6-membered heterocyclyl (e.g., heterocyclyl comprising one 3- to 6-membered ring and 1-3 heteroatoms selected from N, O, and S), —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, T is of Formula I-3-iii
denotes attachment to L;
In certain embodiments, T is of Formula I-3-iii-a
In certain embodiments, I1 is C(R1)2, NRI1′, or O.
In certain embodiments, I2 is C(RI2)2, NRI2′, or O.
In certain embodiments, I1 is NRI1′ and I2 is NRI2′;
In certain embodiments, each occurrence of R1 and RI2 are independently oxo, hydrogen, halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C2-6 alkenyl (e.g., ethenyl (C2), 1-propenyl (C3), 2-propenyl (C3), 1-butenyl (C4), 2-butenyl (C4), butadienyl (C4), pentenyl (C5), pentadienyl (C5), or hexenyl (C6)), C2-6 alkynyl (e.g., ethynyl (C2), 1-propynyl (C3), 2-propynyl (C3), 1-butynyl (C4), 2-butynyl (C4), pentynyl (C5), or hexynyl (C6)), C3-12 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), cyclohexadienyl (C6), cycloheptyl (C7), cycloheptenyl (C7), cycloheptadienyl (C7), cycloheptatrienyl (C7), cyclooctyl (C5), cyclooctenyl (C5), bicyclo[2.2.1]heptanyl (C7), bicyclo[2.2.2]octanyl (C5), cyclononyl (C9), cyclononenyl (C9), cyclodecyl (C10), cyclodecenyl (C10), octahydro-1H-indenyl (C), decahydronaphthalenyl (C10), or spiro[4.5]decanyl (C10)), 3- to 12-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 8-membered rings and 1-5 heteroatoms selected from N, O, and S), C6-10 aryl (e.g., phenyl or naphthyl), or 5- to 10-membered heteroaryl (e.g., heteroaryl comprising one or two 5- or 6-membered rings and 1-5 heteroatoms selected from N, O, and S), wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru.
In certain embodiments, each occurrence of R″ and RI2 are independently oxo, hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, 3- to 6-membered heterocyclyl, C6 aryl, or 5- to 6-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru.
In certain embodiments, each occurrence of R″ and RI2 are independently oxo, hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, each occurrence of R″ and RI2 are independently oxo, hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, two R″ or two RI2, together with the carbon atom to which they are attached, form C3-6 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), or cyclohexadienyl (C6)) or 3- to 6-membered heterocyclyl (e.g., heterocyclyl comprising one 3to 6-membered ring and 1-3 heteroatoms selected from N, O, and S), wherein the carbocycle or heterocycle is optionally substituted with one or more R;
In certain embodiments, RI1 and RI2 are independently hydrogen, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C3-6 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), or cyclohexadienyl (C6)), 3- to 6-membered heterocyclyl (e.g., heterocyclyl comprising one 3- to 6-membered ring and 1-3 heteroatoms selected from N, O, and S), —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, RI1′ and RI2′ are independently hydrogen or C1-6 alkyl.
In certain embodiments, each R1 is independently oxo, hydrogen, halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C2-6 alkenyl (e.g., ethenyl (C2), 1-propenyl (C3), 2-propenyl (C3), 1-butenyl (C4), 2-butenyl (C4), butadienyl (C4), pentenyl (C5), pentadienyl (C5), or hexenyl (C6)), C2-6 alkynyl (e.g., ethynyl (C2), 1-propynyl (C3), 2-propynyl (C3), 1-butynyl (C4), 2-butynyl (C4), pentynyl (C5), or hexynyl (C6)), C3-12 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), cyclohexadienyl (C6), cycloheptyl (C7), cycloheptenyl (C7), cycloheptadienyl (C7), cycloheptatrienyl (C7), cyclooctyl (C5), cyclooctenyl (C5), bicyclo[2.2.1]heptanyl (C7), bicyclo[2.2.2]octanyl (C5), cyclononyl (C9), cyclononenyl (C9), cyclodecyl (C10), cyclodecenyl (C10), octahydro-1H-indenyl (C9), decahydronaphthalenyl (C10), or spiro[4.5]decanyl (C10)), 3- to 12-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 8-membered rings and 1-5 heteroatoms selected from N, O, and S), C6-10 aryl (e.g., phenyl or naphthyl), 5- to 10-membered heteroaryl (e.g., heteroaryl comprising one or two 5- or 6-membered rings and 1-5 heteroatoms selected from N, O, and S), —SRb, —S(═O)Ra, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —NRcS(═O)2Ra, —NRcS(═O)Ra, —NRcS(═O)2ORb, —NRcS(═O)2NRcRd, —RbC(═O)NRcRd—NRbC(═O)Ra, —NbC(═)ORb, —OS(═O)2Ra, —OS(═O)2ORb, —OS(═O)2NRcRd, —OC(═O)Ra, —OC(═O)ORb, —OC(═O)NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, each Ri is independently oxo, hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, each R1 is independently oxo, hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, 3- to 6-membered heterocyclyl, C6 aryl, or 5- to 6-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, each R1 is independently oxo, hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, each R1 is C1-6 alkyl. In certain embodiments, at least one R1 is C1-6 alkyl.
In certain embodiments, each R1 is independently oxo, hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, i is an integer selected from 0 to 4. In certain embodiments, i is 0. In certain embodiments, i is 1. In certain embodiments, i is 2. In certain embodiments, i is 3. In certain embodiments, i is 4.
In certain embodiments, J1 is N or CR.
In certain embodiments, J2 is N or CR2.
In certain embodiments, R1, RJ2, and R3 are independently hydrogen, halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C2-6 alkenyl (e.g., ethenyl (C2), 1-propenyl (C3), 2-propenyl (C3), 1-butenyl (C4), 2-butenyl (C4), butadienyl (C4), pentenyl (C5), pentadienyl (C5), or hexenyl (C6)), C2-6 alkynyl (e.g., ethynyl (C2), 1-propynyl (C3), 2-propynyl (C3), 1-butynyl (C4), 2-butynyl (C4), pentynyl (C5), or hexynyl (C6)), C3-12 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), cyclohexadienyl (C6), cycloheptyl (C7), cycloheptenyl (C7), cycloheptadienyl (C7), cycloheptatrienyl (C7), cyclooctyl (C5), cyclooctenyl (C5), bicyclo[2.2.1]heptanyl (C7), bicyclo[2.2.2]octanyl (C5), cyclononyl (C9), cyclononenyl (C9), cyclodecyl (C10), cyclodecenyl (C10), octahydro-1H-indenyl (C9), decahydronaphthalenyl (C10), or spiro[4.5]decanyl (C10)), 3- to 12-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 8-membered rings and 1-5 heteroatoms selected from N, O, and S), C6-10 aryl (e.g., phenyl or naphthyl), 5- to 10-membered heteroaryl (e.g., heteroaryl comprising one or two 5- or 6-membered rings and 1-5 heteroatoms selected from N, O, and S), —SRb, —S(═O)Ra, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —NRcS(═O)2Ra, —NRcS(═O)Ra, —NRcS(═O)2ORb, —NRcS(═O)2NRcRd, —RbC(═O)NRcRd—NRbC(═O)Ra, —NbC(═)ORb, —OS(═O)2Ra, —OS(═O)2ORb, —OS(═O)2NRcRd, —OC(═O)Ra, —OC(═O)ORb, —OC(═O)NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, RJ1, RJ2, and R3 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, RJ1, RJ2, and R3 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, 3- to 6-membered heterocyclyl, C6 aryl, or 5- to 6-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, RJ1, RJ2, and RJ3 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, RJ1, RJ2, and RJ3 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, RJ3 is hydrogen, halogen, C1-6 alkyl, 3- to 12-membered heterocyclyl, 5- to 10-membered heteroaryl, or —C(═O)NRcRd, wherein the alkyl, heterocyclyl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, RJ1 and RJ2 are independently hydrogen or C1-6 alkyl optionally substituted with one or more R.
In certain embodiments, T is of Formula I-3-iv
denotes attachment to L; and at least one of M1, M2, M3, and M4 is N or
In certain embodiments, T is of Formula I-3-iv-a
In certain embodiments, T is of Formula I-3-iv-b
In certain embodiments M1 is N or C.
In certain embodiments, M2 is
In certain embodiments, M3 is
In certain embodiments, M3 is N.
In certain embodiments, M4 is
In certain embodiments, at least one of M1, M2, M3, and M4 is N or
In certain embodiments, at least two of M1, M3, and M4 are N. In certain embodiments, at least one of M1, M3, and M4 is N.
In certain embodiments, RM2, RM3, and or RM4 are independently hydrogen, halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C2-6 alkenyl (e.g., ethenyl (C2), 1-propenyl (C3), 2-propenyl (C3), 1-butenyl (C4), 2-butenyl (C4), butadienyl (C4), pentenyl (C5), pentadienyl (C5), or hexenyl (C6)), C2-6 alkynyl (e.g., ethynyl (C2), 1-propynyl (C3), 2-propynyl (C3), 1-butynyl (C4), 2-butynyl (C4), pentynyl (C5), or hexynyl (C6)), C3-12 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), cyclohexadienyl (C6), cycloheptyl (C7), cycloheptenyl (C7), cycloheptadienyl (C7), cycloheptatrienyl (C7), cyclooctyl (C5), cyclooctenyl (C5), bicyclo[2.2.1]heptanyl (C7), bicyclo[2.2.2]octanyl (C5), cyclononyl (C9), cyclononenyl (C9), cyclodecyl (C10), cyclodecenyl (C10), octahydro-1H-indenyl (C9), decahydronaphthalenyl (C10), or spiro[4.5]decanyl (C10)), 3- to 12-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 8-membered rings and 1-5 heteroatoms selected from N, O, and S), C6-10 aryl (e.g., phenyl or naphthyl), 5- to 10-membered heteroaryl (e.g., heteroaryl comprising one or two 5- or 6-membered rings and 1-5 heteroatoms selected from N, O, and S), —SRb, —S(═O)Ra, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —NRcS(═O)2Ra, —NRcS(═O)Ra, —NRcS(═O)2ORb, —NRcS(═O)2NRcRd, —RbC(═O)NRcRd—NRbC(═O)Ra, —NbC(═)ORb, —OS(═O)2Ra, —OS(═O)2ORb, —OS(═O)2NRcRd, —OC(═O)Ra, —OC(═O)ORb, —OC(═O)NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru.
In certain embodiments, RM2, RM3, and or RM4 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, RM2, RM3, and or RM4 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, 3- to 6-membered heterocyclyl, C6 aryl, or 5- to 6-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, RM2, RM3, and or RM4 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, RM2, RM3, and or RM4 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, RM2 is C1-6 alkyl, C1-6 alkoxy, or 3- to 12-membered heterocyclyl, wherein the alkyl, alkoxy, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, RM3 is hydrogen.
In certain embodiments, RK′ is hydrogen, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C2-6 alkenyl (e.g., ethenyl (C2), 1-propenyl (C3), 2-propenyl (C3), 1-butenyl (C4), 2-butenyl (C4), butadienyl (C4), pentenyl (C5), pentadienyl (C5), or hexenyl (C6)), C2-6 alkynyl (e.g., ethynyl (C2), 1-propynyl (C3), 2-propynyl (C3), 1-butynyl (C4), 2-butynyl (C4), pentynyl (C5), or hexynyl (C6)), C3-12 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), cyclohexadienyl (C6), cycloheptyl (C7), cycloheptenyl (C7), cycloheptadienyl (C7), cycloheptatrienyl (C7), cyclooctyl (C5), cyclooctenyl (C5), bicyclo[2.2.1]heptanyl (C7), bicyclo[2.2.2]octanyl (C5), cyclononyl (C9), cyclononenyl (C9), cyclodecyl (C10), cyclodecenyl (C10), octahydro-1H-indenyl (C9), decahydronaphthalenyl (C10), or spiro[4.5]decanyl (C10)), 3- to 12-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 8-membered rings and 1-5 heteroatoms selected from N, O, and S), C6-10 aryl (e.g., phenyl or naphthyl), 5- to 10-membered heteroaryl (e.g., heteroaryl comprising one or two 5- or 6-membered rings and 1-5 heteroatoms selected from N, O, and S), —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru.
In certain embodiments, RK′ is hydrogen, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, 3- to 6-membered heterocyclyl, C6 aryl, 5- to 6-membered heteroaryl, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru.
In certain embodiments, RK′ is hydrogen, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkenyl, alkynyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, RK′ is hydrogen, C1-6 alkyl, C3-6 carbocyclyl, 3- to 6-membered heterocyclyl, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, RK′ is hydrogen or C1-6 alkyl optionally substituted with one or more R.
In certain embodiments, K1 is —C(═O)— or —C(RK1)2—.
In certain embodiments, each RK1 is independently hydrogen, halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C2-6 alkenyl (e.g., ethenyl (C2), 1-propenyl (C3), 2-propenyl (C3), 1-butenyl (C4), 2-butenyl (C4), butadienyl (C4), pentenyl (C5), pentadienyl (C5), or hexenyl (C6)), C2-6 alkynyl (e.g., ethynyl (C2), 1-propynyl (C3), 2-propynyl (C3), 1-butynyl (C4), 2-butynyl (C4), pentynyl (C5), or hexynyl (C6)), C3-12 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), cyclohexadienyl (C6), cycloheptyl (C7), cycloheptenyl (C7), cycloheptadienyl (C7), cycloheptatrienyl (C7), cyclooctyl (C5), cyclooctenyl (C5), bicyclo[2.2.1]heptanyl (C7), bicyclo[2.2.2]octanyl (C5), cyclononyl (C9), cyclononenyl (C9), cyclodecyl (C10), cyclodecenyl (C10), octahydro-1H-indenyl (C9), decahydronaphthalenyl (C10), or spiro[4.5]decanyl (C10)), 3- to 12-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 8-membered rings and 1-5 heteroatoms selected from N, O, and S), C6-10 aryl (e.g., phenyl or naphthyl), or 5- to 10-membered heteroaryl (e.g., heteroaryl comprising one or two 5- or 6-membered rings and 1-5 heteroatoms selected from N, O, and S), wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru.
In certain embodiments, each RK1 is independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, 3to 6-membered heterocyclyl, C6 aryl, or 5- to 6-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, each RK1 is independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, each RK1 is independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, each RK is independently oxo, hydrogen, halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C2-6 alkenyl (e.g., ethenyl (C2), 1-propenyl (C3), 2-propenyl (C3), 1-butenyl (C4), 2-butenyl (C4), butadienyl (C4), pentenyl (C5), pentadienyl (C5), or hexenyl (C6)), C2-6 alkynyl (e.g., ethynyl (C2), 1-propynyl (C3), 2-propynyl (C3), 1-butynyl (C4), 2-butynyl (C4), pentynyl (C5), or hexynyl (C6)), C3-12 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), cyclohexadienyl (C6), cycloheptyl (C7), cycloheptenyl (C7), cycloheptadienyl (C7), cycloheptatrienyl (C7), cyclooctyl (C5), cyclooctenyl (C5), bicyclo[2.2.1]heptanyl (C7), bicyclo[2.2.2]octanyl (C5), cyclononyl (C9), cyclononenyl (C9), cyclodecyl (C10), cyclodecenyl (C10), octahydro-1H-indenyl (C9), decahydronaphthalenyl (C10), or spiro[4.5]decanyl (C10)), 3- to 12-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 8-membered rings and 1-5 heteroatoms selected from N, O, and S), C6-10 aryl (e.g., phenyl or naphthyl), 5- to 10-membered heteroaryl (e.g., heteroaryl comprising one or two 5- or 6-membered rings and 1-5 heteroatoms selected from N, O, and S), —SRb, —S(═O)Ra, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —NRcS(═O)2Ra, —NRcS(═O)Ra, —NRcS(═O)2ORb, —NRcS(═O)2NRcRd, —RbC(═O)NRcRd—NRbC(═O)Ra, —NbC(═)ORb, —OS(═O)2Ra, —OS(═O)2ORb, —OS(═O)2NRcRd, —OC(═O)Ra, —OC(═O)ORb, —OC(═O)NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, each RK is independently oxo, hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, each RK is independently oxo, hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, 3- to 6-membered heterocyclyl, C6 aryl, or 5- to 6-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, each RK is independently oxo, hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, each RK is independently oxo, hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, each RK is independently hydrogen or C1-6 alkyl. In certain embodiments, at least one RK is hydrogen. In certain embodiments, at least one RK is C1-6 alkyl.
In certain embodiments, one RK is hydrogen, the other geminal RK is C1-6 alkyl.
In certain embodiments, k is an integer selected from 0 to 4. In certain embodiments, k is 0. In certain embodiments, k is 1. In certain embodiments, k is 2. In certain embodiments, k is 3. In certain embodiments, k is 4.
In certain embodiments, T is of Formula I-3-v
denotes attachment to L;
In certain embodiments, T is of Formula I-3-v-a
In certain embodiments, P1 is
In certain embodiments, P2 is
In certain embodiments, each RN is independently oxo, hydrogen, halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C2-6 alkenyl (e.g., ethenyl (C2), 1-propenyl (C3), 2-propenyl (C3), 1-butenyl (C4), 2-butenyl (C4), butadienyl (C4), pentenyl (C5), pentadienyl (C5), or hexenyl (C6)), C2-6 alkynyl (e.g., ethynyl (C2), 1-propynyl (C3), 2-propynyl (C3), 1-butynyl (C4), 2-butynyl (C4), pentynyl (C5), or hexynyl (C6)), C3-12 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), cyclohexadienyl (C6), cycloheptyl (C7), cycloheptenyl (C7), cycloheptadienyl (C7), cycloheptatrienyl (C7), cyclooctyl (C5), cyclooctenyl (C5), bicyclo[2.2.1]heptanyl (C7), bicyclo[2.2.2]octanyl (C5), cyclononyl (C9), cyclononenyl (C9), cyclodecyl (C10), cyclodecenyl (C10), octahydro-1H-indenyl (C9), decahydronaphthalenyl (C10), or spiro[4.5]decanyl (C10)), 3- to 12-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 8-membered rings and 1-5 heteroatoms selected from N, O, and S), C6-10 aryl (e.g., phenyl or naphthyl), 5- to 10-membered heteroaryl (e.g., heteroaryl comprising one or two 5- or 6-membered rings and 1-5 heteroatoms selected from N, O, and S), —SRb, —S(═O)Ra, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —NRcS(═O)2Ra, —NRcS(═O)Ra, —NRcS(═O)2ORb, —NRcS(═O)2NRcRd—NRbC(═O)NRcRd—NRbC(═O)Ra, —NRbC(═)ORb, —OS(═O)2Ra, —OS(═O)2ORb, —OS(═O)2NRcRd, —OC(═O)Ra, —OC(═O)ORb, —OC(═O)NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, each RN is independently oxo, hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, each RN is independently oxo, hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, 3- to 6-membered heterocyclyl, C6 aryl, or 5- to 6-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, each RN is independently oxo, hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, each RN is independently oxo, hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, n is an integer selected from 0 to 6. In certain embodiments, n is 0. In certain embodiments, n is 1. In certain embodiments, n is 2. In certain embodiments, n is 3. In certain embodiments, n is 4. In certain embodiments, n is 5. In certain embodiments, n is 6.
In certain embodiments, n is 0.
In certain embodiments, RP1, RP2, and RP3 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, 5- to 10-membered heteroaryl, —SRb, —S(═O)Ra, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —NRcS(═O)2Ra, —NRcS(═O)Ra, —NRcS(═O)2ORb, —NRcS(═O)2NRcRd—NRbC(═O)NRcRd—NRbC(═O)Ra, —NRbC(═O)ORb, —OS(═O)2Ra, —OS(═O)2ORb, —OS(═O)2NRcRd, —OC(═O)Ra, —OC(═O)ORb, —OC(═O)NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru.
In certain embodiments, RP1, RP2, and RP3 are independently hydrogen, halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C2-6 alkenyl (e.g., ethenyl (C2), 1-propenyl (C3), 2-propenyl (C3), 1-butenyl (C4), 2-butenyl (C4), butadienyl (C4), pentenyl (C5), pentadienyl (C5), or hexenyl (C6)), C2-6 alkynyl (e.g., ethynyl (C2), 1-propynyl (C3), 2-propynyl (C3), 1-butynyl (C4), 2-butynyl (C4), pentynyl (C5), or hexynyl (C6)), C3-12 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), cyclohexadienyl (C6), cycloheptyl (C7), cycloheptenyl (C7), cycloheptadienyl (C7), cycloheptatrienyl (C7), cyclooctyl (C5), cyclooctenyl (C5), bicyclo[2.2.1]heptanyl (C7), bicyclo[2.2.2]octanyl (C5), cyclononyl (C9), cyclononenyl (C9), cyclodecyl (C10), cyclodecenyl (C10), octahydro-1H-indenyl (C9), decahydronaphthalenyl (C10), or spiro[4.5]decanyl (C10)), 3- to 12-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 8-membered rings and 1-5 heteroatoms selected from N, O, and S), C6-10 aryl (e.g., phenyl or naphthyl), 5- to 10-membered heteroaryl (e.g., heteroaryl comprising one or two 5- or 6-membered rings and 1-5 heteroatoms selected from N, O, and S), —SRb, —S(═O)Ra, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —NRcS(═O)2Ra, —NRcS(═O)Ra, —NRcS(═O)2ORb, —NRcS(═O)2NRcRd—NRbC(═O)NRcRd—NRbC(═O)Ra, —NbC(═)ORb, —OS(═O)2Ra, —OS(═O)2ORb, —OS(═O)2NRcRd, —OC(═O)Ra, —OC(═O)ORb, —OC(═O)NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, RP1, RP2, and RP3 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, RP1, RP2, and RP3 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, 3- to 6-membered heterocyclyl, C6 aryl, or 5- to 6-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, RP1, RP2, and RP3 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, RP1, RP2, and RP3 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, RP3 is hydrogen, C1-6 alkyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, or —C(═O)NRcRd, wherein the alkyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, R4 is —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C2-6 alkenyl (e.g., ethenyl (C2), 1-propenyl (C3), 2-propenyl (C3), 1-butenyl (C4), 2-butenyl (C4), butadienyl (C4), pentenyl (C5), pentadienyl (C5), or hexenyl (C6)), C2-6 alkynyl (e.g., ethynyl (C2), 1-propynyl (C3), 2-propynyl (C3), 1-butynyl (C4), 2-butynyl (C4), pentynyl (C5), or hexynyl (C6)), C3-12 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), cyclohexadienyl (C6), cycloheptyl (C7), cycloheptenyl (C7), cycloheptadienyl (C7), cycloheptatrienyl (C7), cyclooctyl (C8), cyclooctenyl (C8), bicyclo[2.2.1]heptanyl (C7), bicyclo[2.2.2]octanyl (C8), cyclononyl (C9), cyclononenyl (C9), cyclodecyl (C10), cyclodecenyl (C10), octahydro-1H-indenyl (C9), decahydronaphthalenyl (C10), or spiro[4.5]decanyl (C10)), 3- to 12-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 8-membered rings and 1-5 heteroatoms selected from N, O, and S), C6-10 aryl (e.g., phenyl or naphthyl), 5- to 10-membered heteroaryl (e.g., heteroaryl comprising one or two 5- or 6-membered rings and 1-5 heteroatoms selected from N, O, and S), wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru.
In certain embodiments, R4 is C1-6 alkyl or C1-6 alkylamino, wherein the alkyl or alkylamino is optionally substituted with one or more Ru.
In certain embodiments, T is of Formula I-3-vi
denotes attachment to L; and
In certain embodiments, T is of Formula I-3-vi-a or I-3-vi-b
In certain embodiments, Q1 is NR1′, C(RQ1)2, or O.
In certain embodiments, RQ1′ is hydrogen, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C2-6 alkenyl (e.g., ethenyl (C2), 1-propenyl (C3), 2-propenyl (C3), 1-butenyl (C4), 2-butenyl (C4), butadienyl (C4), pentenyl (C5), pentadienyl (C5), or hexenyl (C6)), C2-6 alkynyl (e.g., ethynyl (C2), 1-propynyl (C3), 2-propynyl (C3), 1-butynyl (C4), 2-butynyl (C4), pentynyl (C5), or hexynyl (C6)), C3-12 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), cyclohexadienyl (C6), cycloheptyl (C7), cycloheptenyl (C7), cycloheptadienyl (C7), cycloheptatrienyl (C7), cyclooctyl (C8), cyclooctenyl (C8), bicyclo[2.2.1]heptanyl (C7), bicyclo[2.2.2]octanyl (C8), cyclononyl (C9), cyclononenyl (C9), cyclodecyl (C10), cyclodecenyl (C10), octahydro-1H-indenyl (C9), decahydronaphthalenyl (C10), or spiro[4.5]decanyl (C10)), 3- to 12-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 8-membered rings and 1-5 heteroatoms selected from N, O, and S), C6-10 aryl (e.g., phenyl or naphthyl), 5- to 10-membered heteroaryl (e.g., heteroaryl comprising one or two 5- or 6-membered rings and 1-5 heteroatoms selected from N, O, and S), —S(═O)2Ra, —S(═O)20Rb, —S(═O)2NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru.
In certain embodiments, RQ1′ is hydrogen, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, 3- to 6-membered heterocyclyl, C6 aryl, 5- to 6-membered heteroaryl, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru.
In certain embodiments, RQ1′ is hydrogen, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkenyl, alkynyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, RQ1′ is hydrogen, C1-6 alkyl, C3-6 carbocyclyl, 3- to 6-membered heterocyclyl, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, RQ1′ is hydrogen or C1-6 alkyl.
In certain embodiments, each RQ1 is independently oxo, hydrogen, halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C2-6 alkenyl (e.g., ethenyl (C2), 1-propenyl (C3), 2-propenyl (C3), 1-butenyl (C4), 2-butenyl (C4), butadienyl (C4), pentenyl (C5), pentadienyl (C5), or hexenyl (C6)), C2-6 alkynyl (e.g., ethynyl (C2), 1-propynyl (C3), 2-propynyl (C3), 1-butynyl (C4), 2-butynyl (C4), pentynyl (C5), or hexynyl (C6)), C3-12 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), cyclohexadienyl (C6), cycloheptyl (C7), cycloheptenyl (C7), cycloheptadienyl (C7), cycloheptatrienyl (C7), cyclooctyl (C8), cyclooctenyl (C8), bicyclo[2.2.1]heptanyl (C7), bicyclo[2.2.2]octanyl (C8), cyclononyl (C9), cyclononenyl (C9), cyclodecyl (C10), cyclodecenyl (C10), octahydro-1H-indenyl (C9), decahydronaphthalenyl (C10), or spiro[4.5]decanyl (C10)), 3- to 12-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 8-membered rings and 1-5 heteroatoms selected from N, O, and S), C6-10 aryl (e.g., phenyl or naphthyl), or 5- to 10-membered heteroaryl (e.g., heteroaryl comprising one or two 5- or 6-membered rings and 1-5 heteroatoms selected from N, O, and S), wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru.
In certain embodiments, each RQ1 is independently oxo, hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, 3- to 6-membered heterocyclyl, C6 aryl, or 5- to 6-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, each RQ1 is independently oxo, hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, each RQ1 is independently oxo, hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, two RQ1, together with the carbon atom to which they are attached, form C3-6 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), or cyclohexadienyl (C6)) or 3- to 6-membered heterocyclyl (e.g., heterocyclyl comprising one 3- to 6-membered rings and 1-3 heteroatoms selected from N, O, and S), wherein the carbocycle or heterocycle is optionally substituted with one or more R.
In certain embodiments, when is a double bond, then Q2 is N or CRQ2.
In certain embodiments, when is a single bond, then Q2 is NRQ2′, C(RQ2)2, or O.
In certain embodiments, RQ2′ and RQ3′ are independently hydrogen, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C2-6 alkenyl (e.g., ethenyl (C2), 1-propenyl (C3), 2-propenyl (C3), 1-butenyl (C4), 2-butenyl (C4), butadienyl (C4), pentenyl (C5), pentadienyl (C5), or hexenyl (C6)), C2-6 alkynyl (e.g., ethynyl (C2), 1-propynyl (C3), 2-propynyl (C3), 1-butynyl (C4), 2-butynyl (C4), pentynyl (C5), or hexynyl (C6)), C3-12 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), cyclohexadienyl (C6), cycloheptyl (C7), cycloheptenyl (C7), cycloheptadienyl (C7), cycloheptatrienyl (C7), cyclooctyl (C8), cyclooctenyl (C8), bicyclo[2.2.1]heptanyl (C7), bicyclo[2.2.2]octanyl (C8), cyclononyl (C9), cyclononenyl (C9), cyclodecyl (C10), cyclodecenyl (C10), octahydro-1H-indenyl (C9), decahydronaphthalenyl (C10), or spiro[4.5]decanyl (C10)), 3- to 12-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 8-membered rings and 1-5 heteroatoms selected from N, O, and S), C6-10 aryl (e.g., phenyl or naphthyl), 5- to 10-membered heteroaryl (e.g., heteroaryl comprising one or two 5- or 6-membered rings and 1-5 heteroatoms selected from N, O, and S), —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru.
In certain embodiments, RQ2′ and RQ3′ are independently hydrogen, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, 3- to 6-membered heterocyclyl, C6 aryl, 5- to 6-membered heteroaryl, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, RQ2′ and RQ3′ are independently hydrogen, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkenyl, alkynyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, RQ2′ and RQ3′ are independently hydrogen, C1-6 alkyl, C3-6 carbocyclyl, 3- to 6-membered heterocyclyl, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, each occurrence of RQ2 and RQ3 is independently hydrogen, halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C2-6 alkenyl (e.g., ethenyl (C2), 1-propenyl (C3), 2-propenyl (C3), 1-butenyl (C4), 2-butenyl (C4), butadienyl (C4), pentenyl (C5), pentadienyl (C5), or hexenyl (C6)), C2-6 alkynyl (e.g., ethynyl (C2), 1-propynyl (C3), 2-propynyl (C3), 1-butynyl (C4), 2-butynyl (C4), pentynyl (C5), or hexynyl (C6)), C3-12 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), cyclohexadienyl (C6), cycloheptyl (C7), cycloheptenyl (C7), cycloheptadienyl (C7), cycloheptatrienyl (C7), cyclooctyl (C8), cyclooctenyl (C8), bicyclo[2.2.1]heptanyl (C7), bicyclo[2.2.2]octanyl (C8), cyclononyl (C9), cyclononenyl (C9), cyclodecyl (C10), cyclodecenyl (C10), octahydro-1H-indenyl (C), decahydronaphthalenyl (C10), or spiro[4.5]decanyl (C10)), 3- to 12-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 8-membered rings and 1-5 heteroatoms selected from N, O, and S), C6-10 aryl (e.g., phenyl or naphthyl), or 5- to 10-membered heteroaryl (e.g., heteroaryl comprising one or two 5- or 6-membered rings and 1-5 heteroatoms selected from N, O, and S), wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, each occurrence of RQ2 and RQ3 is independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, 3- to 6-membered heterocyclyl, C6 aryl, or 5- to 6-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru.
In certain embodiments, each occurrence of RQ2 and RQ3 is independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, each occurrence of RQ2 and RQ3 is independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, each RQ2 is hydrogen.
In certain embodiments, two RQ2 or two RQ3, together with the carbon atom to which they are attached, form C3-6 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), or cyclohexadienyl (C6)) or 3- to 6-membered heterocyclyl (e.g., heterocyclyl comprising one 3- to 6-membered rings and 1-3 heteroatoms selected from N, O, and S), wherein the carbocycle or heterocycle is optionally substituted with one or more Ru.
In certain embodiments, S1 is CRS1 or N.
In certain embodiments, S2 is
In certain embodiments, S3 is
In certain embodiments, S4 is
In certain embodiments, RS1, RS2, RS3, and RS4 are independently oxo, hydrogen, halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C2-6 alkenyl (e.g., ethenyl (C2), 1-propenyl (C3), 2-propenyl (C3), 1-butenyl (C4), 2-butenyl (C4), butadienyl (C4), pentenyl (C5), pentadienyl (C5), or hexenyl (C6)), C2-6 alkynyl (e.g., ethynyl (C2), 1-propynyl (C3), 2-propynyl (C3), 1-butynyl (C4), 2-butynyl (C4), pentynyl (C5), or hexynyl (C6)), C3-12 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), cyclohexadienyl (C6), cycloheptyl (C7), cycloheptenyl (C7), cycloheptadienyl (C7), cycloheptatrienyl (C7), cyclooctyl (C5), cyclooctenyl (C5), bicyclo[2.2.1]heptanyl (C7), bicyclo[2.2.2]octanyl (C5), cyclononyl (C9), cyclononenyl (C9), cyclodecyl (C10), cyclodecenyl (C10), octahydro-1H-indenyl (C9), decahydronaphthalenyl (C10), or spiro[4.5]decanyl (C10)), 3- to 12-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 8-membered rings and 1-5 heteroatoms selected from N, O, and S), C6-10 aryl (e.g., phenyl or naphthyl), 5- to 10-membered heteroaryl (e.g., heteroaryl comprising one or two 5- or 6-membered rings and 1-5 heteroatoms selected from N, O, and S), —SRb, —S(═O)Ra, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —NRcS(═O)2Ra, —NRcS(═O)Ra, —NRcS(═O)2ORb, —NRcS(═O)2NRcRd—NRbC(═O)NRcRd—NRbC(═O)Ra, —NbC(═)ORb, —OS(═O)2Ra, —OS(═O)2ORb, —OS(═O)2NRcRd, —OC(═O)Ra, —OC(═O)ORb, —OC(═O)NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, RS1, RS2, RS3, and Rs4 are independently oxo, hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, RS1, RS2, RS3, and RS4 are independently oxo, hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, 3- to 6-membered heterocyclyl, C6 aryl, or 5- to 6-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, RS1, RS2, RS3, and RS4 are independently oxo, hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, RS1, RS2, RS3, and RS4 are independently oxo, hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, Rsi and RS3 are both hydrogen.
In certain embodiments, RS2 is hydrogen, C1-6 alkyl, C1-6 alkoxy, or 3-12-membered heterocyclyl.
In certain embodiments, RS4 is hydrogen or C1-6 alkyl.
In certain embodiments, L is of Formula I-2
In certain embodiments, L is of Formula I-2
In certain embodiments, L″ is absent.
In certain embodiments, L″ is C1-3 alkylene (e.g., methylene, ethylene, n-propylene, or iso-propylene), —C(═O)—, —C(═O)N(RL)—, —C(═O)O—, —N(RL)—, —O—, —S—, or —S(═O)2—, wherein the alkylene is optionally substituted with one or more Ru.
In certain embodiments, Cy1 is optionally substituted C6 arylene (i.e., phenylene, e.g., 1,2-phenylene, 1,3-phenylene, or 1,4-phenylene) or 5- to 6-membered heteroarylene (e.g., heteroarylene comprising one 5- to 6-membered ring and 1-4 heteroatoms selected from O, N, and S).
In certain embodiments, when L″ is C1-3 alkylene, —C(═O)—, —C(═O)N(RL)—, —C(═O)O—, —N(RL)—, —O—, —S—, or —S(═O)2—, wherein the alkylene is optionally substituted with one or more Ru, then Cy1 is optionally substituted C6 arylene or 5- to 6-membered heteroarylene.
In certain embodiments, RL is hydrogen, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 haloalkyl (e.g., C1-6 alkyl substituted with one or more halogen (e.g., —F, —Cl, —Br, or —I)), C3-4 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), or cyclobutenyl (C4)), or 3- to 4-membered heterocyclyl (e.g., heterocyclyl comprising one 3- to 4-membered rings and 1 heteroatom selected from N, O, and S), —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, haloalkyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, Cy1 is optionally substituted with one or more substitutent selected from oxo, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, 5- to 10-membered heteroaryl, —SRb, —S(═O)Ra, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —NRcS(═O)2Ra, —NRcS(═O)Ra, —NRcS(═O)2ORb, —NRcS(═O)2NRcRd, —NRbC(═O)NRcRd, —NbC(═O)Ra, —NRbC(═O)ORb, —OS(═O)2Ra, —OS(═O)2ORb, —OS(═O)2NRcRd, —OC(═O)Ra, —OC(═O)ORb, —OC(═O)NRcRd, —C(═O)Ra, —C(═O)ORb, and —C(═O)NRcRd; wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more substituents selected from oxo, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, and 3- to 6-membered heterocyclyl.
In certain embodiments, Cy1 is optionally substituted with one or more Ru. In certain embodiments, Cy1 is optionally substituted with one or more RV′1. In certain embodiments, Cy1 is optionally substituted with one or more RV′.
In certain embodiments, Ru; is RV′1. In certain embodiments, Ru; is RV′.
In certain embodimegits, Cy1 is
In certain embodiments, Cy1 is
In certain embodiments, when L″ is absent, then Cy1 is
In certain embodiments, Cy1 is
In certain embodiments, when L″ is absent, then Cy1 is
In certain embodiments, T1 is CRTi or N. In certain embodiments, T1 is CRTl. In certain embodiments, T1 is N.
In certain embodiments, V1 is CRy1 or N. In certain embodiments, V1 is CRV1. In certain embodiments, V2 is N.
In certain embodiments, V2 is CRV2 or N. In certain embodiments, V2 is CRV2. In certain embodiments, V2 is N.
In certain embodiments, RT1, RV1, and RV2 are independently hydrogen, halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C3-4 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), or cyclobutenyl (C4)), or 3- to 4-membered heterocyclyl (e.g., heterocyclyl comprising one 3- to 4-membered rings and 1 heteroatom selected from N, O, and S), wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, RT1, RV1, and RV2 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, 3- to 6-membered heterocyclyl, C6 aryl, or 5- to 6-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
In certain embodiments, RT1, RVl, and RV2 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, RT1, RV1, and RV2 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, RTi and RV2 are both hydrogen.
In certain embodiments, each RT is independently halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C3-4 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), or cyclobutenyl (C4)), or 3- to 4-membered heterocyclyl (e.g., heterocyclyl comprising one 3- to 4-membered rings and 1 heteroatom selected from N, O, and S), wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, each RT is independently C1-6 alkyl. In certain embodiments, at least one RT is C1-6 alkyl.
In certain embodiments, t is 0. In certain embodiments, t is 1. In certain embodiments, t is 2. In certain embodiments, t is 3. In certain embodiments, t is 4. In certain embodiments, t is 5. In certain embodiments, t is 6.
In certain embodiments, Cy1 is
In certain embodiments, Cy1 is
In certain embodiments, when L″ is absent, then Cy1 is
In certain embodiments, Cy1 is
wherein RZ1 is C1-6 alkyl substituted with one or more halogen.
In certain embodiments, when L″ is absent, then Cy1 is
wherein RZ1 is C1-6 alkyl substituted with one or more halogen.
In certain embodiments, Cy1 is
In certain embodiments, Y1 is N or CRY1. In certain embodiments, Y1 is N. In certain embodiments, Y1 is CRY1.
In certain embodiments, when is single bond, Y1 is N or CRY1; when
is double bond, Y1 is C.
In certain embodiments, RY1 is hydrogen, halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C3-4 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), or cyclobutenyl (C4)), or 3- to 4-membered heterocyclyl (e.g., heterocyclyl comprising one 3- to 4-membered rings and 1 heteroatom selected from N, O, and S), wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, Y2 is C(RY2)2, O, or N(RY2′))
In certain embodiments, each RY2 is independently hydrogen, halogen (e.g., —F, —C1, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C3-4 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), or cyclobutenyl (C4)), or 3- to 4-membered heterocyclyl (e.g., heterocyclyl comprising one 3- to 4-membered rings and 1 heteroatom selected from N, O, and S), wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, each RI2 is hydrogen.
In certain embodiments, two RY2 together form an oxo.
In certain embodiments, RY2′ is hydrogen, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C3-4 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), or cyclobutenyl (C4)), 3- to 4-membered heterocyclyl (e.g., heterocyclyl comprising one 3- to 4-membered rings and 1 heteroatom selected from N, O, and S), —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, Y3 is C(RY3)2 or N(RY3′).
In certain embodiments, each RY3 is independently hydrogen, halogen (e.g., —F, —C1, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C3-4 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), or cyclobutenyl (C4)), or 3- to 4-membered heterocyclyl (e.g., heterocyclyl comprising one 3- to 4-membered rings and 1 heteroatom selected from N, O, and S), wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, RY3′ is hydrogen, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C3-4 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), or cyclobutenyl (C4)), 3- to 4-membered heterocyclyl (e.g., heterocyclyl comprising one 3- to 4-membered rings and 1 heteroatom selected from N, O, and S), —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd, wherein the alkyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, Z1 is CRZ1 or N. In certain embodiments, Z2 is CRZ2 or N.
In certain embodiments, Z3 is CRZ3 or N.
In certain embodiments, Z1 is CRZ1 and Z2 is CRZ2.
In certain embodiments, one of Z1 and Z2 is N or each of Z1 and Z2 is N.
In certain embodiments, Z3 is CH or N.
In certain embodiments, RZ1, RZ2, and RZ3 are independently hydrogen, halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C3-4 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), or cyclobutenyl (C4)), or 3- to 4-membered heterocyclyl (e.g., heterocyclyl comprising one 3- to 4-membered rings and 1 heteroatom selected from N, O, and S), wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, RZ1 or RZ2, when available, is hydrogen, halogen, —CN, C1-6 alkyl, or C1-6 haloalkyl.
In certain embodiments, each RZ is independently oxo, hydrogen, halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C3-4 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), or cyclobutenyl (C4)), or 3- to 4-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 4-membered rings and 1 heteroatom selected from N, O, and S), wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, at least one RZ is oxo.
In certain embodiments, z is 0. In certain embodiments, z is 1. In certain embodiments, z is 2, as valency permits. In certain embodiments, z is 3, as valency permits. In certain embodiments, z is 4, as valency permits. In certain embodiments, z is 5, as valency permits. In certain embodiments, z is 6, as valency permits.
In certain embodiments, Cy1 is
In certain embodiments, when L″ is C1-3 alkylene, —C(═O)—, —C(═O)N(RL)—, —C(═O)O—, —N(RL)—, —O—, —S—, or —S(═O)2—, wherein the alkylene is optionally substituted with one or more Ru, then Cy1 is
In certain embodiments, Cy1 is
In certain embodiments, when L″ is C1-3 alkylene, —C(═O)—, —C(═O)N(RL)—, —C(═O)O—, —N(RL)—, —O—, —S—, or —S(═O)2—, wherein the alkylene is optionally substituted with one or more Ru, then Cy1 is
wherein.
In certain embodiments, V′1 is CRV′1 or N. In certain embodiments, V′1 is CRV′1.
In certain embodiments, V′1 is N.
In certain embodiments, V′2 is CRV′2 or N. In certain embodiments, V′2 is CRV′2.
In certain embodiments, V′3 is N.
In certain embodiments, V′3 is CRV′3 or N. In certain embodiments, V′3 is CRV′3.
In certain embodiments, V′3 is N.
In certain embodiments, V′3 is CRV′3 or N. In certain embodiments, V′3 is CRV′3.
In certain embodiments, V′3 is N.
In certain embodiments, each of V′1 and V′2 is N; or V′1 is N, and V′2 is CRV′2, wherein RV′2 is hydrogen, halogen, C1-6 alkyl, or C1-6 haloalkyl.
In certain embodiments, one of V′3 and V′4 is N; or V′3 is CRV′3 and V′4 is CRV′4, wherein RV′3 and/or RV′4, when available, are independently hydrogen, halogen, —CN, C1-6 alkyl, C1-6 haloalkyl, C1-6 alkoxy, or C1-6 alkylamino.
In certain embodiments, each RV′1, RV′2, RV′3, and RV′4 are independently hydrogen, halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C3-4 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), or cyclobutenyl (C4)), or 3- to 4-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 4-membered rings and 1 heteroatom selected from N, O, and S), wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, each Rv′ is independently halogen (e.g., —F, —Cl, —Br, or —I), —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C3-4 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), or cyclobutenyl (C4)), or 3- to 4-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 4-membered rings and 1 heteroatom selected from N, O, and S), wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, v′ is an integer selected from 0 to 5. In certain embodiments, v′ is 0. In certain embodiments, v′ is 1. In certain embodiments, v′ is 2. In certain embodiments, v′ is 3. In certain embodiments, v′ is 4. In certain embodiments, v′ is 5.
In certain embodiments, Cy2 is 5- to 6-membered heteroaryl (e.g., heteroaryl comprising one 5- or 6-membered rings and 1-4 heteroatoms selected from N, O, and S), wherein heteroarylene is optionally substituted with one or more R.
In certain embodiments, Cy2 is pyridinylene optionally substituted with one or more halogen, C1-6 alkyl, or C1-6 alkoxy.
In certain embodiments, Cy2 is
wherein ##denotes attachment to Cy1.
In certain embodiments, L1 is —C(═O)NH— or 5- to 6-membered heteroaryl optionally substituted with one or more R.
In certain embodiments, L1 is —C(═O)NH—.
In certain embodiments, L1 is —C(═O)NH—, wherein #denotes attachment to Cy2.
In certain embodiments, L1 is 5- to 6-membered heteroaryl (e.g., heteroaryl comprising one 5- or 6-membered ring and 1-4 heteroatoms selected from O, N, or S) optionally substituted with one or more R.
In certain embodiments, L2 is C(RL2)2, wherein each RL2 is independently hydrogen, deuterium, C1-3 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), or i-propyl (C3)), or C1-3 haloalkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), or i-propyl (C3) substituted with one or more halogen (e.g., —F, —Cl, —Br, or —I)).
In certain embodiments, L2 is C(RL2)2, wherein each RL2 is independently hydrogen, C1-3 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), or i-propyl (C3)), or C1-3 haloalkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), or i-propyl (C3) substituted with one or more halogen (e.g., —F, —Cl, —Br, or —I)).
In certain embodiments, two geminal RL2, together with the carbon atom to which they are bonded, C3-5 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), or cyclopentenyl (C5)) or 3- to 5-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 5-membered rings and 1-3 heteroatoms selected from N, O, and S), wherein the carbocyclyl or heterocyclyl is optionally substituted with one or more Ru.
In certain embodiments, L2 is CH2.
In certain embodiments, L3 is E-ethenylene, ethynylene, C6 arylene, or 5- to 6-membered heteroarylene (e.g., heteroaryl comprising one 5- or 6-membered ring and 1-3 heteroatoms selected from N, O, and S), wherein the E-ethenylene, arylene, or heteroarylene is optionally substituted with one or more R.
In certain embodiments, L3 is E-ethenylene optionally substituted with one or more R.
In certain embodiments, L3 is unsubstituted E-ethenylene.
In certain embodiments, L3 is C6 arylene optionally substituted with one or more R.
In certain embodiments, L3 is -(1,4-phenylene)- optionally substituted with one or more Ru.
In certain embodiments, L3 is unsubstituted -(1,4-phenylene)-.
In certain embodiments, L3 is ethynylene.
In certain embodiments, L3 is 5- to 6-membered heteroarylene optionally substituted with one or more R.
In certain embodiments, L3 is unsubstituted 5- to 6-membered heteroarylene.
In certain embodiments, L3 is unsubstituted 5-membered heteroarylene.
In certain embodiments, L3 is unsubstituted 1,3-linked 5-membered heteroarylene.
In certain embodiments, L3 is unsubstituted 6-membered heteroarylene.
In certain embodiments, L3 is unsubstituted 1,4-linked 6-membered heteroarylene.
In certain embodiments, each Ra is independently C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C3-6 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), or cyclohexadienyl (C6)), or 3- to 6-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 6-membered rings and 1-4 heteroatoms selected from N, O, and S), wherein the alkyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, each Rb is independently hydrogen, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C3-6 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), or cyclohexadienyl (C6)), or 3- to 6-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 6-membered rings and 1-4 heteroatoms selected from N, O, and S), wherein the alkyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, each Rc and each Rd is independently hydrogen, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C3-6 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), or cyclohexadienyl (C6)), or 3- to 6-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 6-membered rings and 1-4 heteroatoms selected from N, O, and S), wherein the alkyl, carbocyclyl, or heterocyclyl is optionally substituted with one or more R.
In certain embodiments, Ra, Rb, Rc, and Rd is independently and optionally substituted with one or more RZ.
In certain embodiments, RZ is independently oxo, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl.
In certain embodiments, each Ru; is independently oxo, deuterium, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)), C1-6 alkylamino (e.g., dimethylamino, diethylamino, di-n-propylamino, di-i-propylamino, di-n-butylamino, di-i-butylamino, di-s-butylamino, di-t-butylamino, dipentylamino, dihexylamino, methylethylamino, methyl-n-propylamino, methyl-i-propylamino, methyl-n-butylamino, methyl-i-butylamino, methyl-s-butylamino, methyl-t-butylamino, methylpentylamino, methylhexylamino, ethyl-n-propylamino, ethyl-i-propylamino, ethyl-n-butylamino, ethyl-s-butylamino, ethyl-i-butylamino, ethyl-t-butylamino, ethylpentylamino, ethylhexylamino, propyl-n-butylamino, propyl-i-butylamino, propyl-s-butylamino, propyl-t-butylamino, propylpentylylamino, propylhexylamino, n-butylpentylamino, i-butylpentylamino, s-butylpentylamino, t-butylpentylamino, n-butylhexylamino, i-butylhexylamino, s-butylhexylamino, t-butylhexylamino, or pentylhexylamino), C2-6 alkenyl (e.g., ethenyl (C2), 1-propenyl (C3), 2-propenyl (C3), 1-butenyl (C4), 2-butenyl (C4), butadienyl (C4), pentenyl (C5), pentadienyl (C5), or hexenyl (C6)), C2-6 alkynyl (e.g., ethynyl (C2), 1-propynyl (C3), 2-propynyl (C3), 1-butynyl (C4), 2-butynyl (C4), pentynyl (C5), or hexynyl (C6)), C3-12 carbocyclyl (e.g., cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), cyclohexadienyl (C6), cycloheptyl (C7), cycloheptenyl (C7), cycloheptadienyl (C7), cycloheptatrienyl (C7), cyclooctyl (C5), cyclooctenyl (C5), bicyclo[2.2.1]heptanyl (C7), bicyclo[2.2.2]octanyl (C5), cyclononyl (C9), cyclononenyl (C9), cyclodecyl (C10), cyclodecenyl (C10), octahydro-1H-indenyl (C), decahydronaphthalenyl (C10), or spiro[4.5]decanyl (C10)), 3- to 12-membered heterocyclyl (e.g., heterocyclyl comprising one or two 3- to 8-membered rings and 1-5 heteroatoms selected from N, O, and S), C6-10 aryl (e.g., phenyl or naphthyl), 5- to 10-membered heteroaryl (e.g., heteroaryl comprising one or two 5- or 6-membered rings and 1-5 heteroatoms selected from N, O, and S), —SRb, —S(═O)Ra, —S(═O)2Ra, —S(═O)2ORb, —S(═O)2NRRd, —NRS(═O)2Ra, —NRS(═O)Ra, —N S(═O)2ORb, —NRcS(═O)2NRcRd—NRbC(═O)NRcRd—NRbC(═O)Ra, —NbC(═)ORb, —OS(═O)2Ra, —OS(═O)2ORb, —OS(═O)2NRcRd, —OC(═O)Ra, —OC(═O)ORb, —OC(═O)NRcRd, —C(═O)Ra, —C(═O)ORb, or —C(═O)NRcRd; wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more substituents selected from oxo, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, and 3- to 6-membered heterocyclyl.
In certain embodiments, each Ru; is independently oxo, deuterium, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more substituents selected from oxo, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, and 3- to 6-membered heterocyclyl.
In certain embodiments, each Ru; is independently oxo, deuterium, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, 3- to 6-membered heterocyclyl, C6 aryl, or 5- to 6-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more substituents selected from oxo, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, and 3- to 6-membered heterocyclyl.
In certain embodiments, each Ru; is independently oxo, deuterium, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl or heterocyclyl is optionally substituted with one or more substituents selected from oxo, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, and 3- to 6-membered heterocyclyl.
In certain embodiments, each Ru; is independently oxo, deuterium, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-6 carbocyclyl, or 3- to 6-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, carbocyclyl or heterocyclyl is optionally substituted with one or more substituents selected from oxo, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-6 carbocyclyl, and 3- to 6-membered heterocyclyl.
In certain embodiments, the compound is of Formula I-A
wherein:
In certain embodiments, Cy2A is hydrogen.
In certain embodiments, Cy2A is C1-6 alkyl (e.g., methyl (C1), ethyl (C2), n-propyl (C3), i-propyl (C3), n-butyl (C4), i-butyl (C4), s-butyl (C4), t-butyl (C4), pentyl (C5), or hexyl (C6)), C1-6 alkoxy (e.g., methoxy (C1), ethoxy (C2), propoxy (C3), i-propoxy (C3), n-butoxy (C4), i-butoxy (C4), s-butoxy (C4), t-butoxy (C4), pentoxy (C5), or hexoxy (C6)).
In certain embodiments, Cy2A is methyl.
In certain embodiments, T of Formula (I-A) is of Formula I-3-ii. In certain embodiments, T of Formula (I-A) is of Formula I-3-ii-a.
In certain embodiments, T of Formula (I-A) is of Formula I-3-ii-a, wherein RG4 is hydrogen; G1 is CRGl; and G3 is CRG3.
In certain embodiments, T of Formula (I-A) is of Formula I-3-ii-a, wherein RG4 is hydrogen; and G1 and G3 are each CH.
In certain embodiments, T of Formula (I-A) is of Formula I-3-ii, wherein H1 is NRH1′; and H2 is NRH2′.
In certain embodiments, T of Formula (I-A) is of Formula I-3-ii, wherein H1 is NMe; and H2 is NMe.
In certain embodiments, T of Formula (I-A) is of Formula I-3-ii, wherein G1 is N; G2 is CRG2; G3 is
and G4 is CRG4.
In certain embodiments, T of Formula (I-A) is of Formula I-3-ii, wherein G1 is CRG1; G2 is
G3 is CRG3; and G4 is N.
In certain embodiments, T of Formula (I-A) is of Formula I-3-ii, wherein G1 is N; G2 is CH; G3 is
In certain embodiments, T of Formula (I-A) is of Formula I-3-ii, wherein G1 is CH; G2 is
G3 is CH; and G4 is N.
In certain embodiments, T of Formula (I-A) is
herein
denotes attachment to Cy1.
In certain embodiments, T of Formula (I-A) is of Formula I-3-vi-a.
In certain embodiments, T of Formula (I-A) is of Formula I-3-vi-a, wherein Q1 is NRQ1; is a double bond; Q2 is CRQ2; and Q3 is CRQ3.
In certain embodiments, T of Formula (I-A) is of Formula I-3-vi-a, wherein Q1 is NMe; is a double bond; Q2 is CH; and Q3 is CMe.
In certain embodiments, T of Formula (I-A) is of Formula I-3-vi-a, wherein S1 is N or CRS1; S2 is CRS2; S3 is N or CRS3; and S4 is
In certain embodiments, T of Formula (I-A) is of Formula I-3-vi-a, wherein S1 is N; S2 is CRS2; S3 is CRS3; and S4 is
In certain embodiments, T of Formula (I-A) is of Formula I-3-vi-a, wherein S1 is CRS1; S2 is CRS2; S3 is N; and S4 is
In certain embodiments T of Formula (I-A) is of Formula I-3-vi-a, wherein S1 is CRS1; S2 is CRS2; S3 is CRS3; and S4 is
In certain embodiments, T of Formula (I-A) is
wherein
denotes attachment to L″.
In certain embodiments, Cy1 of Formula (I-A) is
wherein
denotes attachment to T.
In certain embodiments, the compound of Formula I-A is of Formula I-A-i or I-A-ii:
In certain embodiments, the compound of Formula I-A is of Formula I-A′ or IA″
In certain embodiments, the compound of Formula I-A is of Formula I-A′-i, I-A′-ii, or I-A″-ii:
Embodiments of the variables in any of the Formulae described herein, e.g., Formulae I, I-1, I-1-i, I-1-ii, I-1-ii-1, I-1-ii-2, I-1-ii-3, I-1-iii, I-1-iii-1, I-2, I-3-i, I-3-ii, I-3-iii, I-3-iv, I-3-v, and I-3-vi, as applicable, are described below. Any of the variables can be any moiety as described in the embodiments below. In addition, the combination of any moieties described for any of the variables, as applicable, with any moieties described for any of the remaining variables, is also contemplated.
Without wishing to be limited by this statement, while various options for variables are described herein, it is understood that the present disclosure intends to encompass operable embodiments having combinations of the options. The disclosure may be interpreted as excluding the non-operable embodiments caused by certain combinations of the options.
When a range of values is listed, each discrete value and sub-range within the range are also contemplated. For example, “C1-6 alkyl” is intended to encompass, C1, C2, C3, C4, C5, C6, C1-6, C1-5, C1-4, C1-3, C1-2, C2-6, C2-5, C2-4, C2-3, C3-6, C3-5, C3-4, C4-6, C4-5, and C5-6 alkyl.
In certain embodiments, the compound is selected from the compounds in Tables 1 and 2 and pharmaceutically acceptable salts thereof.
In certain embodiments, the compound is selected from the compounds in Tables 1 and 2.
In certain embodiments, the compound is selected from the compounds in Table 1 and pharmaceutically acceptable salts thereof.
In certain embodiments, the compound is selected from the compounds in Table 1.
In certain embodiments, the compound is selected from the compounds in Table 2 and pharmaceutically acceptable salts thereof.
In certain embodiments, the compound is selected from the compounds in Table 2.
In certain embodiments, the compound is selected from Compound Nos. A169, A170, A173, A174, A181, A189, A259, B28, B37, B38, B47, B48, B74, and B163 and pharmaceutically acceptable salts thereof.
In certain embodiments, the compound is selected from Compound Nos. A169, A170, A173, A174, A181, A189, A259, B28, B37, B38, B47, B48, B74, and B163.
In certain embodiments, the compound is selected from Compound Nos. A169, A170, A173, A174, A181, A189, and A259 and pharmaceutically acceptable salts thereof.
In certain embodiments, the compound is selected from Compound Nos. A169, A170, A173, A174, A181, A189, and A259.
In certain embodiments, the compound is selected from Compound Nos. B28, B37, B38, B47, B48, B74, and B163 and pharmaceutically acceptable salts thereof.
In certain embodiments, the compound is selected from Compound NosB28, B37, B38, B47, B48, B74, and B163.
To date, heterobifunctional protein degraders carry both opportunities and challenges. The biggest challenge is that, unlike traditional small-molecule drugs, degraders do not meet the classic “rule of 5” (RO5) which was proposed by Christopher A. Lipinski in 1997: molecular weight (MW)<500 kDa; solubility (LogP)<5; H-bond donors (HBDs)<5; H-bond acceptors (HBAs)<10; and number of rotatable bonds (nRotB)<10. Compounds conforming to Lipinski's rule have a higher probability of possessing good pharmacokinetic (PK) properties and high oral bioavailability compared with compounds that don't satisfy the RO5. Although heterobifunctional degraders are considered small-molecule compounds, they typically violate the RO5 due to molecular weight >500 kDa and several other RO5 parameters above the cutoffs. As a result, poor oral absorption is a common and major problem for heterobifunctional degraders.
In order to screen for degraders with acceptable oral bioavailability, parameters such as molecular weight, solubility, topological polar surface area (tPSA), H-bond donor, H-bond acceptor, number of rotatable bonds, as well as metabolic stability/permeability, need to be carefully characterized and optimized. In addition, selectivity off-target proteins needs to be optimized as well. In fact, many current studies only demonstrate the effectiveness and anti-proliferative activity of the designed degraders on target protein degradation at the cellular levels, with acknowledgement of the challenge of achieving orally bioavailable compounds.
The present disclosure is based, at least in part, on the discovery that the compounds disclosed herein may possess improved oral bioavailability relative to other p300 degraders.
The compounds of the present disclosure may also possess advantageous characteristics, as compared to other p300 degraders. For example, the compounds of the present disclosure may potentially show selectivity for p300 over CBP, may display more potent degradation activity against p300, more favorable pharmacokinetic properties (e.g., as measured by Cmax, Tmax, and/or AUC), and/or less interaction with other cellular targets (e.g., hepatic cellular transporter such as OATP1B1) and accordingly improved safety (e.g., drug-drug interaction).
In certain embodiments, a compound disclosed herein shows selective degradation of p300 over CBP when a compound has a DC50 for p300 that is lower than its DC50 for CBP when both values are measured at the same time point. In certain embodiments, a compound disclosed herein shows selectivity when a compound has a Dmax for p300 that is greater than its Dmax for CBP when both values are measured at the same time point. In certain embodiments, a compound disclosed herein shows selectivity through a combination of both lower DC50 and greater Dmax for p300, as compared to those for CBP. In certain embodiments, a compound disclosed herein shows selectivity when a compound has a DC50 for p300 at least 10-fold lower than its DC50 for CBP and/or a value of Dmax for p300 minus Dmax for CBP (ΔDmax) of at least 30, at least 35, at least 40, or at least 45 percentage points. In certain preferred embodiments, a compound disclosed herein shows selectivity when a compound has a DC50 for p300 at least 30-fold lower than its DC50 for CBP and/or a value of Dmax for p300 minus Dmax for CBP (ΔDmax) of at least 50, at least 55, at least 60, or at least 65 percentage points. In certain more preferred embodiments, a compound disclosed herein shows selectivity when a compound has a DC50 for p300 at least 100-fold lower than its DC50 for CBP and/or a value of Dmax for p300 minus Dmax for CBP (ΔDmax) of at least 70, at least 75, at least 80, at least 85, or at least 90 percentage points. In certain embodiments, a compound disclosed herein shows selectivity when it has a Dmax for p300 measured at a short time point (for instance, 2 hours) that is equivalent or greater than its Dmax for CBP measured at a significantly longer time point (for instance, 24 hours). In certain preferred embodiments, a compound has a (ΔDmax) of at least 30, at least 40, at least 50, at least 60, at least 70, at least 80, or at least 90 percentage points even when measured stringently (at 2 hours for p300 and 24 hours for CBP). These beneficial properties of the compounds of the present disclosure can be measured according to methods commonly available in the art, such as methods exemplified herein.
Due to the existence of double bonds, the compounds of the present disclosure may be in cis or trans, or Z or E, configuration. It is understood that although one configuration may be depicted in the structure of the compounds or formulae of the present disclosure, the present disclosure also encompasses the other configuration. For example, the compounds or formulae of the present disclosure may be depicted in cis or trans, or Z or E, configuration.
In one embodiment, a compound of the present disclosure (e.g., a compound of any of the formulae or any individual compounds disclosed herein) is a pharmaceutically acceptable salt. In another embodiment, a compound of the present disclosure (e.g., a compound of any of the formulae or any individual compounds disclosed herein) is a solvate. In another embodiment, a compound of the present disclosure (e.g., a compound of any of the formulae or any individual compounds disclosed herein) is a hydrate.
In certain embodiments, the compounds disclosed herein exist as their pharmaceutically acceptable salts. In certain embodiments, the methods disclosed herein include methods of treating diseases by administering such pharmaceutically acceptable salts. In certain embodiments, the methods disclosed herein include methods of treating diseases by administering such pharmaceutically acceptable salts as pharmaceutical compositions.
In certain embodiments, the compounds described herein possess acidic or basic groups and therefor react with any of a number of inorganic or organic bases, and inorganic and organic acids, to form a pharmaceutically acceptable salt. In certain embodiments, these salts are prepared in situ during the final isolation and purification of the compounds disclosed herein, or by separately reacting a purified compound in its free form with a suitable acid or base, and isolating the salt thus formed.
Examples of pharmaceutically acceptable salts include those salts prepared by reaction of the compounds described herein with a mineral, organic acid, or inorganic base, such salts including acetate, acrylate, adipate, alginate, aspartate, benzoate, benzenesulfonate, bisulfate, bisulfite, bromide, butyrate, butyn-1,4-dioate, camphorate, camphorsulfonate, caproate, caprylate, chlorobenzoate, chloride, citrate, cyclopentanepropionate, decanoate, digluconate, dihydrogenphosphate, dinitrobenzoate, dodecylsulfate, ethanesulfonate, formate, fumarate, glucoheptanoate, glycerophosphate, glycolate, hemisulfate, heptanoate, hexanoate, hexyne-1,6-dioate, hydroxybenzoate, y-hydroxybutyrate, hydrochloride, hydrobromide, hydroiodide, 2-hydroxyethanesulfonate, iodide, isobutyrate, lactate, maleate, malonate, methanesulfonate, mandelate metaphosphate, methanesulfonate, methoxybenzoate, methylbenzoate, monohydrogenphosphate, 1-napthalenesulfonate, 2-napthalenesulfonate, nicotinate, nitrate, palmoate, pectinate, persulfate, 3-phenylpropionate, phosphate, picrate, pivalate, propionate, pyrosulfate, pyrophosphate, propiolate, phthalate, phenylacetate, phenylbutyrate, propanesulfonate, salicylate, succinate, sulfate, sulfite, succinate, suberate, sebacate, sulfonate, tartrate, thiocyanate, tosylateundeconate, and xylenesulfonate.
Further, the compounds described herein can be prepared as pharmaceutically acceptable salts formed by reacting the free base form of the compound with a pharmaceutically acceptable inorganic or organic acid, including, but not limited to, inorganic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, phosphoric acid metaphosphoric acid, and the like; and organic acids such as acetic acid, propionic acid, hexanoic acid, cyclopentanepropionic acid, glycolic acid, pyruvic acid, lactic acid, malonic acid, succinic acid, malic acid, maleic acid, fumaric acid, p-toluenesulfonic acid, tartaric acid, trifluoroacetic acid, citric acid, benzoic acid, 3-(4-hydroxybenzoyl)benzoic acid, cinnamic acid, mandelic acid, arylsulfonic acid, methanesulfonic acid, ethanesulfonic acid, 1,2-ethanedisulfonic acid, 2-hydroxyethanesulfonic acid, benzenesulfonic acid, 2-naphthalenesulfonic acid, 4-methylbicyclo-[2.2.2]oct-2-ene-1-carboxylic acid, glucoheptonic acid, 4,4′-methylenebis-(3-hydroxy-2-ene-1-carboxylic acid), 3-phenylpropionic acid, trimethylacetic acid, tertiary butylacetic acid, lauryl sulfuric acid, gluconic acid, glutamic acid, hydroxynaphthoic acid, salicylic acid, stearic acid, and muconic acid.
In certain embodiments, those compounds described herein which comprise a free acid group react with a suitable base, such as the hydroxide, carbonate, bicarbonate, or sulfate of a pharmaceutically acceptable metal cation, with ammonia, or with a pharmaceutically acceptable organic primary, secondary, tertiary, or quaternary amine. Representative salts include the alkali or alkaline earth salts, like lithium, sodium, potassium, calcium, and magnesium, and aluminum salts and the like. Illustrative examples of bases include sodium hydroxide, potassium hydroxide, choline hydroxide, sodium carbonate, N+(C1-4 alkyl)4, and the like.
Representative organic amines useful for the formation of base addition salts include ethylamine, diethylamine, ethylenediamine, ethanolamine, diethanolamine, piperazine, and the like. It should be understood that the compounds described herein also include the quaternization of any basic nitrogen-containing groups they contain. In certain embodiments, water or oil-soluble or dispersible products are obtained by such quaternization.
“Solvate” refers to forms of the compound that are associated with a solvent or water (also referred to as “hydrate”), usually by a solvolysis reaction. This physical association includes hydrogen bonding. Conventional solvents include water, ethanol, acetic acid and the like. The compounds of the disclosure may be prepared e.g., in crystalline form and may be solvated or hydrated. Suitable solvates include pharmaceutically acceptable solvates, such as hydrates, and further include both stoichiometric solvates and non-stoichiometric solvates. In certain instances, the solvate will be capable of isolation, for example when one or more solvent molecules are incorporated in the crystal lattice of the crystalline solid. “Solvate” encompasses both solution-phase and isolable solvates. Representative solvates include hydrates, ethanolates and methanolates.
Those skilled in the art of organic chemistry will appreciate that many organic compounds can form complexes with solvents in which they are reacted or from which they are precipitated or crystallized. These complexes are known as “solvates”. For example, a complex with water is known as a “hydrate”. Solvates are within the scope of the disclosure.
It will also be appreciated by those skilled in organic chemistry that many organic compounds can exist in more than one crystalline form. For example, crystalline form may vary from solvate to solvate. Thus, all crystalline forms or the pharmaceutically acceptable solvates thereof are contemplated and are within the scope of the present disclosure.
In certain embodiments, the compounds described herein exist as solvates. The present disclosure provides for methods of treating diseases by administering such solvates. The present disclosure further provides for methods of treating diseases by administering such solvates as pharmaceutical compositions.
Solvates contain either stoichiometric or non-stoichiometric amounts of a solvent, such as water, ethanol, and the like. Hydrates are formed when the solvent is water, or alcoholates are formed when the solvent is alcohol. Solvates of the compounds described herein can be conveniently prepared or formed during the processes described herein. In addition, the compounds provided herein can exist in unsolvated as well as solvated forms. In general, the solvated forms are considered equivalent to the unsolvated forms for the purposes of the compounds and methods provided herein.
It is also to be understood that compounds that have the same molecular formula but differ in the nature or sequence of bonding of their atoms or the arrangement of their atoms in space are termed “isomers.” Isomers that differ in the arrangement of their atoms in space are termed “stereoisomers.”
Stereoisomers that are not mirror images of one another are termed “diastereomers” and those that are non-superimposable mirror images of each other are termed “enantiomers.” When a compound has an asymmetric center, for example, it is bonded to four different groups, a pair of enantiomers is possible. An enantiomer can be characterized by the absolute configuration of its asymmetric center and is described by the R - and S -sequencing rules of Cahn and Prelog, or by the manner in which the molecule rotates the plane of polarized light and designated as dextrorotatory or levorotatory (i.e., as (+)- or (−)-isomers respectively). A chiral compound can exist as either individual enantiomer or as a mixture thereof. A mixture containing equal proportions of the enantiomers is termed a “racemic mixture”.
As used herein a pure enantiomeric compound is substantially free from other enantiomers or stereoisomers of the compound (i.e., in enantiomeric excess). In other words, an “S” form of the compound is substantially free from the “R” form of the compound and is, thus, in enantiomeric excess of the “R” form. The term “enantiomerically pure” or “pure enantiomer” denotes that the compound comprises more than 95% by weight, more than 96% by weight, more than 97% by weight, more than 98% by weight, more than 98.5% by weight, more than 99% by weight, more than 99.2% by weight, more than 99.5% by weight, more than 99.6% by weight, more than 99.7% by weight, more than 99.8% by weight or more than 99.9% by weight, of the enantiomer. In certain embodiments, the weights are based upon total weight of all enantiomers or stereoisomers of the compound.
As used herein and unless otherwise indicated, the term “enantiomerically pure (R)-compound” refers to at least about 95% by weight (R)-compound and at most about 5% by weight (S)-compound, at least about 99% by weight (R)-compound and at most about 1% by weight (S)-compound, or at least about 99.9% by weight (R)-compound and at most about 0.1% by weight (S)-compound. In certain embodiments, the weights are based upon total weight of compound.
As used herein and unless otherwise indicated, the term “enantiomerically pure (S)-compound” refers to at least about 95% by weight (S)-compound and at most about 5% by weight (R)-compound, at least about 99% by weight (S)-compound and at most about 1% by weight (R)-compound or at least about 99.9% by weight (S)-compound and at most about 0.1% by weight (R)-compound. In certain embodiments, the weights are based upon total weight of compound.
In the compositions provided herein, an enantiomerically pure compound or a pharmaceutically acceptable salt, solvate, hydrate or prodrug thereof can be present with other active or inactive ingredients. For example, a pharmaceutical composition comprising enantiomerically pure (R)-compound can comprise, for example, about 90% excipient and about 10% enantiomerically pure (R)-compound. In certain embodiments, the enantiomerically pure (R)-compound in such compositions can, for example, comprise, at least about 95% by weight (R)-compound and at most about 5% by weight (S)-compound, by total weight of the compound. For example, a pharmaceutical composition comprising enantiomerically pure (S)-compound can comprise, for example, about 90% excipient and about 10% enantiomerically pure (S)-compound. In certain embodiments, the enantiomerically pure (S)-compound in such compositions can, for example, comprise, at least about 95% by weight (S)-compound and at most about 5% by weight (R)-compound, by total weight of the compound. In certain embodiments, the active ingredient can be formulated with little or no excipient or carrier.
Unless indicated otherwise, the description or naming of a particular compound in the specification and claims is intended to include both individual enantiomers and mixtures, racemic or otherwise, thereof. The methods for the determination of stereochemistry and the separation of stereoisomers are well-known in the art.
In certain embodiments, the compounds described herein exist as geometric isomers. In certain embodiments, the compounds described herein possess one or more double bonds. The compounds disclosed herein include all cis, trans, syn, anti, entgegen (E), and zusammen (Z) isomers as well as the corresponding mixtures thereof. All geometric forms of the compounds disclosed herein are contemplated and are within the scope of the disclosure.
In certain embodiments, the compounds disclosed herein possess one or more chiral centers and each center exists in the R configuration or S configuration. The compounds disclosed herein include all diastereomeric, enantiomeric, and epimeric forms as well as the corresponding mixtures thereof. All diastereomeric, enantiomeric, and epimeric forms of the compounds disclosed herein are contemplated and are within the scope of the disclosure.
In additional embodiments of the compounds and methods provided herein, mixtures of enantiomers and/or diastereoisomers, resulting from a single preparative step, combination, or interconversion are useful for the applications described herein. In certain embodiments, the compounds described herein are prepared as their individual stereoisomers by reacting a racemic mixture of the compound with an optically active resolving agent to form a pair of diastereoisomeric compounds, separating the diastereomers, and recovering the optically pure enantiomers. In certain embodiments, dissociable complexes are preferred. In certain embodiments, the diastereomers have distinct physical properties (e.g., melting points, boiling points, solubilities, reactivity, etc.) and are separated by taking advantage of these dissimilarities. In certain embodiments, the diastereomers are separated by chiral chromatography, or preferably, by separation/resolution techniques based upon differences in solubility. In certain embodiments, the optically pure enantiomer is then recovered, along with the resolving agent.
In certain embodiments, compounds described herein exist as tautomers. The compounds described herein include all possible tautomers within the formulas described herein.
Tautomers are compounds that are interconvertible by migration of a hydrogen atom, accompanied by a switch of a single bond and an adjacent double bond. In bonding arrangements where tautomerization is possible, a chemical equilibrium of the tautomers will exist. For example, enols and ketones are tautomers because they are rapidly interconverted by treatment with either acid or base. Another example of tautomerism is the aci- and nitro-forms of phenylnitromethane, that are likewise formed by treatment with acid or base. Tautomeric forms may be relevant to the attainment of the optimal chemical reactivity and biological activity of a compound of interest. All tautomeric forms of the compounds disclosed herein are contemplated and are within the scope of the disclosure. The exact ratio of the tautomers depends on several factors, including temperature, solvent, and pH.
In certain embodiments, the compound described herein is administered as a pure chemical. In certain embodiments, the compound described herein is combined with one or more pharmaceutically suitable or acceptable carriers (also referred to herein as one or more pharmaceutically suitable (or acceptable) excipients, physiologically suitable (or acceptable) excipients, or physiologically suitable (or acceptable) carriers) selected on the basis of a chosen route of administration and standard pharmaceutical practice as described, for example, in Remington: The Science and Practice of Pharmacy (Gennaro, 21st Ed. Mack Pub. Co., Easton, PA (2005)).
Accordingly, the present disclosure provides pharmaceutical compositions comprising a compound described herein, or a pharmaceutically acceptable salt, solvate, or stereoisomer thereof, and a pharmaceutically acceptable excipient.
In certain embodiments, the compound provided herein is substantially pure, in that it contains less than about 5%, less than about 1%, or less than about 0.1% of other organic small molecules, such as unreacted intermediates or synthesis by-products that are created, for example, in one or more of the steps of a synthesis method.
Pharmaceutical compositions are administered in a manner appropriate to the disease to be treated (or prevented). An appropriate dose and a suitable duration and frequency of administration will be determined by such factors as the condition of the patient, the type and severity of the patient's disease, the particular form of the active ingredient, and the method of administration. In general, an appropriate dose and treatment regimen provides the composition(s) in an amount sufficient to provide therapeutic and/or prophylactic benefit (e.g., an improved clinical outcome, such as more frequent complete or partial remissions, or longer disease-free and/or overall survival, or a lessening of symptom severity. Optimal doses are generally determined using experimental models and/or clinical trials. The optimal dose depends upon the body mass, weight, or blood volume of the patient.
In certain embodiments, the pharmaceutical composition is formulated for oral, topical (including buccal and sublingual), rectal, vaginal, transdermal, parenteral, intrapulmonary, intradermal, intrathecal and epidural and intranasal administration. Parenteral administration includes intramuscular, intravenous, intraarterial, intraperitoneal, or subcutaneous administration. In certain embodiments, the pharmaceutical composition is formulated for intravenous injection, oral administration, inhalation, nasal administration, topical administration, or ophthalmic administration. In certain embodiments, the pharmaceutical composition is formulated for oral administration. In certain embodiments, the pharmaceutical composition is formulated for intravenous injection. In certain embodiments, the pharmaceutical composition is formulated as a tablet, a pill, a capsule, a liquid, an inhalant, a nasal spray solution, a suppository, a suspension, a gel, a colloid, a dispersion, a suspension, a solution, an emulsion, an ointment, a lotion, an eye drop, or an ear drop. In certain embodiments, the pharmaceutical composition is formulated as a tablet.
The compounds of the present disclosure can be prepared in a number of ways well known to those skilled in the art of organic synthesis. By way of example, the compounds of the present disclosure can be synthesized using the methods described below, together with synthetic methods known in the art of synthetic organic chemistry, or variations thereon as appreciated by those skilled in the art. The compounds of the present disclosure (i.e., a compound of the present application (e.g., a compound of any of the formulae or any individual compounds disclosed herein)) can be synthesized by following the general synthetic scheme below as well as the steps outlined in the examples, schemes, procedures, and/or synthesis described herein (e.g., Examples).
A compound of formula I-1 may be prepared according to the procedures shown in SCHEME 1a, SCHEME 1b, and SCHEME 1c.
According to SCHEME 1a, commercially available or synthetically accessible substituted anilines, phenyls, phenols, thiophenols, or fused heteroaryls of formula I-1-1a are coupled with commercially available or synthetically accessible substituted bromo compounds of formula I-1-2a; with a suitable organic base such as DIPEA, K2CO3, NaHCO3, or the like; in a suitable solvent such as DMF, DMSO, or the like; at temperatures ranging from 25° C. to 100° C., preferably 60° C.; to provide a cyclized compound of formula I-1.
Alternatively, a compound of formula I-1 may be prepared according to the procedures shown in SCHEME 1b.
According to SCHEME 1b, commercially available or synthetically accessible substituted (hetero)arene I-1-1b (U═H, B(OR)2, ZnCl, SnR3, or the like) is coupled with commercially available or synthetically accessible substituted pyridine I-1-2b (Y═Cl, Br, I, OTf, or the like) according to standard Buchwald-Hartwig conditions, standard Suzuki-Miyuara conditions, standard Negishi conditions, standard Stille conditions, or the like; with a suitable palladium catalyst such as Pd(dppf)Cl2, Pd(PPh3)4, Pd X-Phos G2, or the like; with or without a suitable base such as Na2CO3, Cs2CO3, K3PO4, KOtBu or the like; in a suitable solvent such as dioxane, THF, DMF, toluene, mixed with water or anhydrous, or the like; at temperatures ranging from 40° C. to 120° C.; to provide a coupled compound of formula I-1-3b. A bis(benzyloxy)pyridine of formula I-1-3b is then reduced with a suitable inorganic catalyst such as Pd/C, PtO2, Pd(OH)2, or the like; in a suitable solvent such as EtOAc, EtOH, MeOH, or the like; with a suitable hydride source such as H2 atmosphere or the like; at temperatures ranging from 25° C. to 120° C.; to provide a compound of formula I-1.
Alternatively, a compound of formula I-1 may be prepared according to the procedures shown in SCHEME 1c.
According to SCHEME 1c, a commercially available or synthetically accessible substituted (hetero)arylacetic esters of formula I-1-1c (RS═Me, Et, tBu, or the like) is reacted with commercially available or synthetically accessible substituted Michael acceptors of formula I-1-2c; with or without a suitable strong base such as KOtBu or the like; in a suitable solvent such as THF or the like; at temperatures ranging from 20° C. to 120° C.; to provide a coupled compound of formula I-1. Alternatively, commercially available or synthetically accessible substituted (hetero)arylacetic esters of formula I-1-1c are reacted with commercially available or synthetically accessible substituted electrophiles of formula I-1-3c (Y═Br, I, OMs, or the like); with a suitable base such as TEA, DIPEA, NaH, or the like; in a suitable solvent such as DMF, 1,4-dioxane, or the like; at temperatures ranging 20° C. to 120° C.; to provide a coupled compound of formula I-1.
A compound of formula I-3-i may be prepared according to the procedures shown in SCHEME 2.
According to SCHEME 2, commercially available or synthetically accessible substituted nitro compound of formula I-3-i-1 is reacted with a vinyl Grignard agent of formula I-3-i-2 (X≡Br, Cl or I) and the like; in a suitable solvent such as THF, dioxane, and the like; at temperatures ranging from −60° C. to 25° C.; to provide cyclized compound of formula I-3-i-3. Cyclized compound of formula I-3-i-3 is acylated with commercially available 2,2,2-trichloroacetyl chloride; with a suitable Lewis acid such as AlCl3, BF3 etherate and the like; in a suitable solvent such as DCM, dichloroethane and the like; at temperatures ranging from 0° C. to 60° C., preferably 25° C.; to provide an acylated compound of formula I-3-i-4. Acylated compound of formula I-3-i-4 is hydrolyzed with a suitable inorganic base such as KOH, NaOH and the like; in a suitable mixed solvent such as THF, MeOH, and the like mixed with water; at temperatures ranging from 25° C. to 80° C.; to provide an acid of formula I-3-i-5. An acid of formula I-3-i-5 is then acylated with a suitable chlorine source such as SOCl2 or oxalyl chloride and the like; with a catalyst such as DMF and the like; in a suitable solvent such as DCM, dichloroethane, and the like; at temperatures ranging from 0° C. to 80° C.; to provide acyl chloride compound of formula I-3-i-6. Acyl chloride compound of formula I-3-i-6 is coupled with a commercially available or synthetically accessible amine source with a suitable organic base such as TEA, DIPEA and the like; in a suitable solvent such as DCM, THE and the like; at temperatures ranging from −10° C. to 20° C.; to provide an amide of formula I-3-i (RF4=amide).
A compound of formula I-3-ii may be prepared according to the procedures shown in SCHEME 3.
According to SCHEME 3, commercially available or synthetically accessible bis-aniline of formula I-3-ii-1 is reacted with a carbon monoxide insertion agent such as CDI, tri-phosgene or the like; with an organic base such as TEA or DIPEA or the like; in a suitable solvent such as DCM, DMF, and the like; at temperatures ranging from 0° C. to 60° C.; to provide urea compound of formula I-3-ii-2. A urea compound of formula I-3-ii-2 is alkylated with commercially available or synthetically accessible substituted alkyl halide with a suitable inorganic base such as NaH, t-BuOK and the like; in a suitable solvent such as DMF, THF, and the like; at temperatures ranging from 0° C. to 60° C., preferably 40° C.; to provide a substituted urea compound of formula I3-ii-3. A urea compound of formula I-3-ii-3 (X≡halide) is reacted with commercially available or synthetically accessible substituted alkyl or vinyl borate (Suzuki), zinc (Negishi) or magnesium (Kumada) agent I-3-ii-4; with a suitable catalysis such as Pd(Ph3P)4, PdCl2(Ph3P)2 and the like; in an inorganic base such as Na2CO3, K3PO4 and the like; in a suitable solvent such as THF, dioxane and the like; at temperatures ranging from 0° C. to 100° C., preferably 40° C.; to provide a substituted compound of formula I3-ii.
A compound of formula I-3-iii may be prepared according to the procedures shown in SCHEME 4.
According to SCHEME 4, commercially available or synthetically accessible substituted aryl nitro compound of formula I-3-iii-1 is reacted with commercially available or synthetically accessible substituted amino acid of formula I-3-iii-2; with a suitable inorganic base such as K2CO3, Cs2CO3 and the like; in a suitable solvent such as DMF, DMSO and the like; at temperatures ranging from 50° C. to 120° C.; to provide coupled compound of formula I-3-iii-3. A nitro compound of formula I-3-iii-3 is reduced with a suitable reductant such as Fe, SnCl2 and the like; in an acidic solvent such as HOAc, 1N HCl aqueous solution, and the like; at temperatures ranging from 80° C. to 120° C., preferably 100° C.; to provide a cyclized compound of formula I-3-iii.
A compound of formula I-3-iv may be prepared according to the procedures shown in SCHEME 5.
According to SCHEME 5, commercially available or synthetically accessible substituted keto ester compound of formula I-3-iv-1 is alkylated with commercially available or synthetically accessible substituted bromo-ester of formula I-3-iv-2; with a suitable inorganic base such as K2CO3, Cs2CO3 and the like; in a suitable solvent such as acetone, DMF, DMSO and the like; at temperatures ranging from 50° C. to 120° C.; to provide coupled compound of formula I-3-iv-3. A keto ester compound of formula I-3-iv-3 is de-carboxylated with a suitable acid such as HCl, H2SO4 and the like; in an acidic solvent such as HOAc, 1N HCl aqueous solution, and the like; at temperatures ranging from 40° C. to 100° C., preferably 60° C.; to provide a keto acid compound of formula I-3-iv-4. A keto acid compound of formula I-3-iv-4 is coupled with a commercially available or synthetically accessible substituted amino ester compound of formula I-3-iv-5; with a suitable coupling agent such as T3P, HATU and the like; in a suitable solvent such as DMF, DMSO and the like; at temperatures ranging from 0° C. to 80° C.; to provide coupled compound of formula I-3-iv-6. A coupled compound of formula I-3-iv-6 is cyclized under adol condensation condition; with a suitable base such as LDA, LiHMDS and the like; in a suitable solvent such as THF, dioxane and the like; at temperatures ranging from −78° C. to 0° C.; to provide cyclized keto-enol compound of formula I-3-iv-7. A keto-enol compound of formula I-3-iv-7 is reacted with commercially available or synthetically accessible substituted hydrazine compound of formula I-3-iv-8; in a suitable solvent such as MeOH, EtOH and the like; at temperatures ranging from 25° C. to 80° C.; to provide coupled compound of formula I-3-iv.
A compound of formula I-3-v may be prepared according to the procedures shown in SCHEME 6
According to SCHEME 6, commercially available or synthetically accessible substituted amine compound of formula I-3-v-1 is coupled with commercially available or synthetically accessible substituted acid of formula I-3-v-2; with a suitable coupling agent such as HATU, T3P and the like; with a suitable organic base such as TEA, DIPEA and the like; in a suitable solvent such as DMF, DMSO and the like; at temperatures ranging from 0° C. to 80° C.; to provide coupled amide compound of formula I-3-v-3. An amide compound of formula I-3-v-3 is cyclized with a suitable reactive chloride source such as POCl3, SOCl2 and the like; in aprotic polar solvent such as DMF, and the like; at temperatures ranging from 60° C. to 100° C., preferably 80° C.; to provide a cyclized pyrazine compound of formula I-3-v-4. A cyclized pyrazine compound of formula I-3-v-4 is reduced with a suitable reducing agent such as up to 50 psi of H2 gas, ammonium formate and the like; with a suitable catalysis such as 10% Pd/C, Pd(OH)2/C and the like; in a suitable solvent such as EtOAc, MeOH and the like; at temperatures ranging from 25° C. to 80° C.; to provide reduced compound of formula I-3-v-5. A reduced compound of formula I-3-v-5 is acylated with a commercially available or synthetically accessible acylating agent of formula I-3-v-6; in a suitable organic base such as TEA, DIPEA and the like; in a suitable solvent such as DCM, dichloroethane and the like; at temperatures ranging from −10° C. to 25° C.; to provide acylated compound of formula I-3-v.
A compound of formula I-3-vi-a or I-3-vi-b may be prepared according to the procedures shown in SCHEME 7.
According to SCHEME 7, commercially available or synthetically accessible substituted aniline of formula I-3-vi-a-1 or I-3-vi-b-1 is reacted with commercially available or synthetically accessible substituted acyl halide (X≡Cl or Br) of formula I-3-vi-2; with a suitable organic base such as TEA, DIPEA and the like; in a suitable solvent such as DCM, dichloroethane and the like; at temperatures ranging from −10° C. to 50° C.; to provide coupled compound of formula I-3-vi-a-3 or I-3-vi-b-3. An acylated compound of formula I-3-vi-a-3 or I-3-vi-b-3 is reduced with a suitable chlorine source agent such as POCl3, SOCl2 and the like; in an aprotic polar solvent such as DMF, and the like; at temperatures ranging from 0° C. to 80° C.; to provide a cyclized compound of formula I-3-vi-a-4 or I-3-vi-b-4. An aryl chloride compound of formula I-3-vi-a-4 or I-3-vi-b-4 is hydrolized with a suitable base such as NaOH, KOH and the like; in a mixed solvent such as MeOH, and the like; with aqueous solution; at temperatures ranging from 0° C. to 60° C.; to provide a cyclized compound of formula I-3-vi-a or I-3-vi-b.
When L1 is —C(═O)NH— optionally substituted with one or more Ru, a compound of formula I-2 may be prepared according to the procedures shown in SCHEME 8a.
According to SCHEME 8a, commercially available or synthetically accessible substituted aryl halide (X≡Cl, Br, OTf, or the like) of formula I-2-1a is reacted with commercially available or synthetically accessible aryl metal agent (Y═B, Zn, Sn, Mg, or the like) of formula I-2-2a; with a suitable catalyst such as Pd(Ph3P)4, PdCl2(dppf) or the like; with or without an inorganic base such as Na2CO3, K3PO4, or the like; in a suitable solvent such as 1,4-dioxane, DMF, or the like; at temperatures ranging from 60° C. to 100° C.; to provide coupled compound of formula I-2-3a. A coupled compound of formula I-2-3a is hydrolyzed with a suitable hydroxide source like lithium hydroxide or the like; in a suitable solvent like THE mixed with water, or the like; at temperatures ranging from 0° C. to 30° C.; to provide a carboxylate of formula I-2-4a. An acid of formula I-2-4a is reacted with commercially available or synthetically accessible substituted amine of formula I-2-5a; with a coupling agent such as HATU, T3P, or the like; in an organic solvent such as DCM, DMF, or the like; at temperatures ranging from 0° C. to 60° C.; to provide a coupled amide compound of formula I-2.
Alternatively, when L1 is 5- to 6-membered heteroaryl optionally substituted with one or more Ru, a compound of formula I-2 may be prepared according to the procedures shown in SCHEME 8b.
According to SCHEME 8b, commercially available or synthetically accessible substituted aryl halide (X═Cl, Br, OTf, or the like) of formula I-2-1b is reacted with commercially available or synthetically accessible aryl metal reagent (Y═B, Zn, Mg, Sn, or the like) of formula I-2-2b; with a suitable catalyst such as Pd(Ph3P)4, PdCl2(dppf) or the like; with or without an inorganic base such as Na2CO3, K3PO4, or the like; in a suitable solvent such as 1,4-dioxane, DMF, or the like; at temperatures ranging from 60° C. to 100° C.; to provide coupled compound of formula I-2-5b. Alternatively, for certain instances of L1, commercially available or synthetically accessible substituted aryl halide (X═Cl, Br, OTf, or the like) of formula I-2-3b (where U is an appropriate functional group to allow heterocycle synthesis) is reacted with commercially available or synthetically accessible alkyl reagent of formula I-2-4b (where V is a functional group that is complementary to U to allow for heterocycle synthesis); with reagents and under conditions known to those that are skilled in the art of organic synthesis; to provide a coupled compound of formula I-2-5b. An aryl halide of formula I-2-5b is converted to an aryl metal species of formula I-2-6b (Y═B, Zn, Mg, Sn, or the like); with an appropriate metal source such as B2Pin2, Bu6Sn2, ZnCl2 or the like; with or without a suitable catalyst such as Pd(Ph3P)4, PdCl2(dppf) or the like; with or without a lithiation reagent such as tBuLi or the like; in a suitable solvent such as 1,4-dioxane, THF, or the like; at temperatures ranging from 0° C. to 100° C.; to provide an aryl metal compound of formula I-2-6b. A nucleophile of formula I-2-6b is coupled with a synthetically accessible substituted aryl halide of formula I-2-7b (X═C1, Br, OTf, or the like); with a suitable catalyst such as Pd(Ph3P)4, PdCl2(dppf) or the like; with or without an inorganic base such as Na2CO3, K3PO4, or the like; in a suitable solvent such as 1,4-dioxane, DMF, or the like; at temperatures ranging from 60° C. to 100° C.; to provide a coupled compound of formula I-2.
A compound of formula I may be prepared according to the procedures shown in SCHEME 9.
According to SCHEME 9, synthetically accessible substituted aryl halide as target ligand (Cl, Br or OTf) of formula T is reacted with synthetically accessible L (linker) (boronic ester, Zn or Mg halide) of formula L; with a suitable catalysis such as Pd(Ph3P)4, PdCl2dppf and the like (Suzuki); or with a suitable catalysis such as Pd2(dba)3, Pd(OAc)2 and the like (Buchwald) with or without an inorganic base such as Na2CO3, K3PO4, t-BuONa and the like; in a suitable solvent such as dioxane, DMF and the like; at temperatures ranging from 60° C. to 120° C.; to provide coupled compound of formula T-L. A coupled compound of formula T-L (target ligand and linker) is reacted with commercially available or synthetically accessible E3 ligand of formula C; with Suzuki coupling by catalysis of Pd(Ph3P)4, Pd2(dba)3 and the like; in an organic solvent such as dioxane, DMF, water, and the like; with an inorganic base such as Na2CO3, K3PO4 and the like; at temperatures ranging from 0° C. to 100° C.; to provide a coupled degrader compound of formula T-L-C (I).
Alternatively, a coupled compound of formula T-L (target ligand and linker) is reacted with commercially available or synthetically accessible E3 ligand of formula C; with Sonogashira coupling by catalysis of Pd(Ph3P)4, PdCl2dppf and the like; or with a co-catalyst such as CuBr, CuI, and the like; in an organic solvent such as dioxane, DMF, and the like; with an organic base such as TEA, DIPEA and the like; at temperatures ranging from 0° C. to 100° C.; to provide a coupled degrader compound of formula T-L-C (I).
Those skilled in the art will recognize that the steps described in the schemes above may be inverted, depending on the specific compound. Those skilled in the art will also recognize that the steps from one scheme may be interspersed with those described in another scheme, as the reactivity of the specific compounds allow.
Those skilled in the art will recognize if a stereocenter exists in the compounds of the present disclosure (e.g., a compound of any of the formulae or any individual compounds disclosed herein). Accordingly, the present disclosure includes both possible stereoisomers (unless specified in the synthesis) and includes not only racemic compound but the individual enantiomers and/or diastereomers as well. When a compound is desired as a single enantiomer or diastereomer, it may be obtained by stereospecific synthesis or by resolution of the final product or any convenient intermediate. Resolution of the final product, an intermediate, or a starting material may be affected by any suitable method known in the art. See, for example, “Stereochemistry of Organic Compounds” by E. L. Eliel, S. H. Wilen, and L. N. Mander (Wiley-lnterscience, 1994).
The compounds used in the reactions described herein are made according to organic synthesis techniques known to those skilled in this art, starting from commercially available chemicals and/or from compounds described in the chemical literature. “Commercially available chemicals” are obtained from standard commercial sources including Acros Organics (Pittsburgh, PA), Aldrich Chemical (Milwaukee, WI, including Sigma Chemical and Fluka) (Pittsburgh, PA).
Suitable reference books and treatises that detail the synthesis of reactants useful in the preparation of compounds described herein, or provide references to articles that describe the preparation, include for example, “Synthetic Organic Chemistry”, John Wiley & Sons, Inc., New York; S. R. Sandler et al., “Organic Functional Group Preparations,” 2nd Ed., Academic Press, New York, 1983; H. O. House, “Advanced Organic Chemistry: Reactions, Mechanisms and Structure”, 4th Ed., Wiley-Interscience, New York, 1992; and “Chemistry of Functional Groups” John Wiley & Sons, in 73 volumes.
Specific and analogous reactants are optionally identified through the indices of known chemicals prepared by the Chemical Abstract Service of the American Chemical Society, which are available in most public and university libraries, as well as through on-line. Chemicals that are known but not commercially available in catalogs are optionally prepared by custom chemical synthesis houses, where many of the standard chemical supply houses (e.g., those listed above) provide custom synthesis services. A reference for the preparation and selection of pharmaceutical salts of the compounds described herein is P. H. Stahl & C. G. Wermuth “Handbook of Pharmaceutical Salts”, Verlag Helvetica Chimica Acta, Zurich, 2002.
Unless otherwise noted, reagents and solvents were used as received from commercial suppliers. Proton nuclear magnetic resonance (NMR) spectra were obtained on either Bruker or Varian spectrometers at 400 MHz. Spectra are given in ppm (δ) and coupling constants, J, are reported in Hertz. Tetramethylsilane (TMS) was used as an internal standard. Liquid chromatography-mass spectrometry (LC/MS) were collected using a SHIMADZU LCMS-2020EV or Agilent 1260-6125B LCMS. Purity and low resolution mass spectral data were measured using Agilent 1260-6125B LCMS system (with Diode Array Detector, and Agilent G6125BA Mass spectrometer) or using Waters Acquity UPLC system (with Diode Array Detector, and Waters 3100 Mass Detector). The purity was characterized by UV wavelength 214 nm, 220 nm, 254 nm and ESI. Column: poroshell 120 EC-C18 2.7 μm 4.6×100 mm; Flow rate 0.8 mL/min; Solvent A (100/0.1 water/formic acid), Solvent B (100 acetonitrile); gradient: hold 5% B to 0.3 min, 5-95% B from 0.3 to 2 min, hold 95% B to 4.8 min, 95-5% B from 4.8 to 5.4 min, then hold 5% B to 6.5 min. Or, column: Acquity UPLC BEH C18 1.7 μm 2.1×50 mm; Flow rate 0.5 mL/min; Solvent A (0.1% formic acid water), Solvent B (acetonitrile); gradient: hold 5% B for 0.2 min, 5-95% B from 0.2 to 2.0 min, hold 95% B to 3.1 min, then 5% B at 3.5 min.
The biological activities of the compounds of the present disclosure can be assessed with methods and assays known in the art.
The binding potencies of the compounds to p300 may be determined using HTRF assay technology. HTRF signals may be measured by displacing the fluorescent probe, 5-(8-(7-acetyl-3-(tetrahydro-2H-pyran-4-yl)-5,6,7,8-tetrahydroimidazo[1,5-a]pyrazin-1-yl)isoquinolin-3-yl)-N-(2-(2-(2-(3-(3′,6′-dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9′-xanthen]-5-yl)thioureido)ethoxy)ethoxy)ethyl)picolinamide, from FLAG-tagged p300 with the tested compounds. Data analysis may be performed using appropriate software (e.g., TIBCO Spotfire) using a four-parameter dose response curve to determine the IC50 of the tested compounds.
The binding potencies of the compounds to CBP may be determined using HTRF assay technology. HTRF signals may be measured by displacing the fluorescent probe, 5-(8-(7-acetyl-3-(tetrahydro-2H-pyran-4-yl)-5,6,7,8-tetrahydroimidazo[1,5-a]pyrazin-1-yl)isoquinolin-3-yl)-N-(2-(2-(2-(3-(3′,6′-dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9′-xanthen]-5-yl)thioureido)ethoxy)ethoxy)ethyl)picolinamide, from a FLAG-tagged (C-terminal) and His-tagged (N-terminal) CBP construct with the tested compounds. Data analysis may be performed using appropriate software (e.g., TIBCO Spotfire) using a four-parameter dose response curve to determine the IC50 of the tested compounds.
The cellular degradation activities of the compounds against p300 may be measured by HiBit technology in certain cells (e.g., A549 P300 HiBit cells) with the tested compounds at certain initial concentrations (e.g., 0.000064, 0.00019, 0.00057, 0.0017, 0.0051, 0.015, 0.046, 0.14, 0.42, and 1.25 μM) for a certain period of time (e.g., 2 hours). The resulting protein concentration may be assessed using HiBit Lytic detection buffer. The resultant luminescence may be measured with an appropriate instrument (e.g., a PerkinElmer EnVision plate reader). Dose-response curves may be generated and analyzed using appropriate software (e.g., TIBCO Spotfire) to determine the DC50 and Dmax of the tested compounds.
The cellular degradation activities of the compounds against CBP may be measured by HiBit technology in certain cells (e.g., A549 CBP HiBit cells) with the tested compounds at certain initial concentrations (e.g., 0.000064, 0.00019, 0.00057, 0.0017, 0.0051, 0.015, 0.046, 0.14, 0.42, and 1.25 μM) for a certain period of time (e.g., 24 hours). The resulting protein concentration may be assessed using HiBit Lytic detection buffer. The resultant luminescence may be measured with an appropriate instrument (e.g., a PerkinElmer EnVision plate reader). Dose-response curves may be generated and analyzed using appropriate software (e.g., TIBCO Spotfire) to determine the DC50 and Dmax of the tested compounds.
The cellular degradation activities of the compounds against p300 may alternately be measured by in-cell Western blot technology in certain cells (e.g., H1299 cells) with the tested compounds at certain initial concentrations (e.g., 0.0005, 0.0015, 0.0046, 0.014, 0.041, 0.12, 0.37, 1.1, 3.3, and 10 μM) for a certain period of time (e.g., 16 hours). The resulting protein concentration may be assessed using an anti-p300 primary antibody (e.g., anti-human p300 clone D8Z4E) and an IRDye 800CW secondary antibody (e.g., IRDye 800CW goat anti-rabbit IgG). The resultant fluorescence may be measured with appropriate instrument (e.g., the LI-COR Odyssey CLx instrument). Dose-response curves may be generated and analyzed using appropriate software (e.g., TIBCO Spotfire) to determine the DC50 and Dmax of the tested compounds.
The cellular degradation activities of the compounds against CBP may alternately be measured by, e.g., in-cell Western blot technology in certain cells (e.g., H1299 cells) with the tested compounds at certain initial concentrations (e.g., 0.0005, 0.0015, 0.0046, 0.014, 0.041, 0.12, 0.37, 1.1, 3.3, and 10 μM) for a certain period of time (e.g., 16 hours). The resulting protein concentration may be assessed using an anti-CBP primary antibody (e.g., anti-human CBP clone D6C5) and an IRDye 800CW secondary antibody (e.g., IRDye 800CW goat anti-rabbit IgG). The resultant fluorescence may be measured with appropriate instrument (e.g., the LI-COR Odyssey CLx instrument). Dose-response curves may be generated and analyzed using appropriate software (e.g., TIBCO Spotfire) to determine the DC50 and Dmax of the tested compounds.
The ability of the compounds to inhibit cellular proliferation may be assessed by, e.g., Cell Titer-Glo technology in wild-type, knock-out, and knock-out cell lines (e.g., H1299 wild-type, H1299 p300 knock-out, and H1299 CBP knock-out cell lines). The tested compounds may be assessed at certain initial concentrations (e.g., 0.0005, 0.0015, 0.0046, 0.014, 0.041, 0.12, 0.37, 1.1, 3.3, and 10 μM) for a certain period of time (e.g., 6 days). Cell growth may be assessed using the appropriate reagent and instrument (e.g., Cell Titer-Glo Luminescent Cell Viability reagent and a Perkin Elmer Envision instrument). Dose-response curves may be generated and analyzed using appropriate software (e.g., (TIBCO Spotfire) to determine the gIC50 and the growth-death index (i.e. the percentage of remaining cell growth or cell death observed relative to untreated cells).
In certain aspects, the present disclosure provides methods of degrading a protein in a subject or biological sample comprising administering the compound disclosed herein to the subject or contacting the biological sample with the compound disclosed herein.
In certain aspects, the present disclosure provides uses of the compound disclosed herein in the manufacture of a medicament for degrading a protein in a subject or biological sample.
In certain aspects, the present disclosure provides compounds disclosed herein for use in degrading a protein in a subject or biological sample.
In certain aspects, the present disclosure provides methods of reducing a protein in a subject or biological sample comprising administering the compound disclosed herein to the subject or contacting the biological sample with the compound disclosed herein.
In certain aspects, the present disclosure provides uses of the compound disclosed herein in the manufacture of a medicament for reducing a protein in a subject or biological sample.
In certain aspects, the present disclosure provides compounds disclosed herein for use in reducing a protein in a subject or biological sample.
In certain embodiments, the protein is p300. In certain embodiments, the protein is CBP.
In certain aspects, the present disclosure provides methods for treating a disease or disorder.
In certain aspects, the present disclosure provides uses of the compounds disclosed herein in the manufacture of a medicament for treating a disease or disorder.
In certain aspects, the present disclosure provides compounds disclosed herein for treating a disease or disorder.
In certain embodiments, the disease or disorder is driven by gene activation such as cancer, inflammatory disorders, or autoimmune diseases.
In certain embodiments, the disease or disorder is selected from the group consisting of acoustic neuroma, acute leukemia, acute lymphocytic leukemia, acute myelocytic leukemia, acute T-cell leukemia, basal cell carcinoma, bile duct carcinoma, bladder cancer, brain choriocarcinoma, chronic leukemia, chronic lymphocytic leukemia, chronic myelocytic leukemia, chronic myelogenous leukemia, colon cancer, colorectal cancer, craniopharyngioma, cystadenocarcinoma, diffuse large B-cell lymphoma, dysproliferative changes, embryonal carcinoma, endometrial cancer, endotheliosarcoma, ependymoma, epithelial carcinoma, erythroleukemia, esophageal cancer, estrogen alfa receptor positive breast cancer, essential thrombocythemia, Ewing's tumor, fibrosarcoma, follicular lymphoma, germ cell testicular cancer, glioma, glioblastoma, gliosarcoma, heavy chain disease, head and neck cancer, hemangioblastoma, hepatoma, hepatocellular cancer, hormone insensitive prostate cancer, leiomyosarcoma, leukemia, liposarcoma, lung cancer, lymphagioendotheliosarcoma, lymphangiosarcoma, lymphoblastic leukemia, lymphoma, lymphoid malignancies of T-cell or B-cell origin, medullary carcinoma, medulloblastoma, melanoma, meningioma, mesothelioma, multiple myeloma, myelogenous leukemia, myeloma, myxosarcoma, neuroblastoma, NUT midline carcinoma (NMC), non-small cell lung cancer, oligodendroglioma, oral cancer, osteogenic sarcoma, ovarian cancer, pancreatic cancer, papillary adenocarcinomas, papillary carcinoma, pinealoma, polycythemia vera, prostate cancer, rectal cancer, renal cell carcinoma, retinoblastoma, rhabdomyosarcoma, sarcoma, sebaceous gland carcinoma, seminoma, skin cancer, small cell lung carcinoma, solid tumors (carcinomas and sarcomas), small cell lung cancer, stomach cancer, squamous cell carcinoma, synovioma, sweat gland carcinoma, thyroid cancer, Waldenstrom's macroglobulinemia, testicular tumors, uterine cancer, and Wilms' tumor.
In certain embodiments, the disease or disorder is selected from the group consisting of Addison's disease, acute gout, ankylosing spondylitis, asthma, atherosclerosis, Behcet's disease, bullous skin diseases, chronic obstructive pulmonary disease, Crohn's disease, dermatitis, eczema, giant cell arteritis, fibrosis, glomerulonephritis, hepatic vascular occlusion, hepatitis, hypophysitis, immunodeficiency syndrome, inflammatory bowel disease, Kawasaki disease, lupus nephritis, multiple sclerosis, myocarditis, myositis, nephritis, organ transplant rejection, osteoarthritis, pancreatitis, pericarditis, Polyarteritis nodosa, pneumonitis, primary biliary cirrhosis, psoriasis, psoriatic arthritis, rheumatoid arthritis, scleritis, sclerosing cholangitis, sepsis, systemic lupus erythematosus, Takayasu's Arteritis, toxic shock, thyroiditis, type I diabetes, ulcerative colitis, uveitis, vitiligo, vasculitis, and Wegener's granulomatosis.
In certain embodiments, the disease or disorder is selected from the group consisting of prostate cancer, lung cancer, breast cancer, pancreatic cancer, colorectal cancer, and melanoma.
In certain embodiments, the subject is a mammal.
In certain embodiments, the subject is a human.
As used in the specification and appended claims, unless specified to the contrary, the following terms have the meaning indicated below.
Definitions of specific functional groups and chemical terms are described in more detail below. The chemical elements are identified in accordance with the Periodic Table of the Elements, CAS version, Handbook of Chemistry and Physics, 75th Ed., inside cover, and specific functional groups are generally defined as described therein. Additionally, general principles of organic chemistry, as well as specific functional moieties and reactivity, are described in Thomas Sorrell, Organic Chemistry, University Science Books, Sausalito, 1999; Smith and March, March's Advanced Organic Chemistry, 5th Edition, John Wiley & Sons, Inc., New York, 2001; Larock, Comprehensive Organic Transformations, VCH Publishers, Inc., New York, 1989; and Carruthers, Some Modern Methods of Organic Synthesis, 3rd Edition, Cambridge University Press, Cambridge, 1987.
Compounds described herein can comprise one or more asymmetric centers, and thus can exist in various isomeric forms, e.g., enantiomers and/or diastereomers. For example, the compounds described herein can be in the form of an individual enantiomer, diastereomer or geometric isomer, or can be in the form of a mixture of stereoisomers, including racemic mixtures and mixtures enriched in one or more stereoisomer. Isomers can be isolated from mixtures by methods known to those skilled in the art, including chiral high pressure liquid chromatography (HPFC) and the formation and crystallization of chiral salts; or preferred isomers can be prepared by asymmetric syntheses. See, for example, Jacques et al., Enantiomers, Racemates and Resolutions (Wiley Interscience, New York, 1981); Wilen et al., Tetrahedron 33:2725 (1977); Eliel, Stereochemistry of Carbon Compounds (McGraw-Hill, NY, 1962); and Wilen, Tables of Resolving Agents and Optical Resolutions p. 268 (E.F. Eliel, Ed., Univ. of Notre Dame Press, Notre Dame, IN 1972).
The invention additionally encompasses compounds described herein as individual isomers substantially free of other isomers, and alternatively, as mixtures of various isomers.
When a range of values is listed, it is intended to encompass each value and sub-range within the range. For example, “C1-6 alkyl” is intended to encompass, C1, C2, C3, C4, C5, C6, C1-6, C1-5, C1-4, C1-3, C1-2, C2-6, C2-5, C2-4, C2-3, C3-6, C3-5, C3-4, C4-6, C4-5, and C5-6 alkyl.
The following terms are intended to have the meanings presented therewith below and are useful in understanding the description and intended scope of the present invention. When describing the invention, which may include compounds, pharmaceutical compositions containing such compounds and methods of using such compounds and compositions, the following terms, if present, have the following meanings unless otherwise indicated. It should also be understood that when described herein any of the moieties defined forth below may be substituted with a variety of substituents, and that the respective definitions are intended to include such substituted moieties within their scope as set out below. Unless otherwise stated, the term “substituted” is to be defined as set out below. It should be further understood that the terms “groups” and “radicals” can be considered interchangeable when used herein. The articles “a” and “an” may be used herein to refer to one or to more than one (i.e., at least one) of the grammatical objects of the article. By way of example “an analogue” means one analogue or more than one analogue.
“Alkyl” as used herein, refers to a radical of a straight-chain or branched saturated hydrocarbon group having from 1 to 20 carbon atoms (“C1-20 alkyl”). In certain embodiments, an alkyl group has 1 to 12 carbon atoms (“C1-12 alkyl”). In certain embodiments, an alkyl group has 1 to 10 carbon atoms (“C1-10 alkyl”). In certain embodiments, an alkyl group has 1 to 9 carbon atoms (“C1-9 alkyl”). In certain embodiments, an alkyl group has 1 to 8 carbon atoms (“C1-8 alkyl”). In certain embodiments, an alkyl group has 1 to 7 carbon atoms (“C1-7 alkyl”). In certain embodiments, an alkyl group has 1 to 6 carbon atoms (“C1-6 alkyl”, which is also referred to herein as “lower alkyl”). In certain embodiments, an alkyl group has 1 to 5 carbon atoms (“C1-5 alkyl”).
In certain embodiments, an alkyl group has 1 to 4 carbon atoms (“C1-4 alkyl”). In certain embodiments, an alkyl group has 1 to 3 carbon atoms (“C1-3 alkyl”). In certain embodiments, an alkyl group has 1 to 2 carbon atoms (“C1-2 alkyl”). In certain embodiments, an alkyl group has 1 carbon atom (“C1 alkyl”). Examples of C1-6 alkyl groups include methyl (C1), ethyl (C2), n-propyl (C3), isopropyl (C3), n-butyl (C4), tert-butyl (C4), sec-butyl (C4), isobutyl (C4), n-pentyl (C5), 3-pentanyl (C5), amyl (C5), neopentyl (C5), 3-methyl-2-butanyl (C5), tertiary amyl (C5), and n-hexyl (C6). Additional examples of alkyl groups include n-heptyl (C7), n-octyl (C5) and the like. Unless otherwise specified, each instance of an alkyl group is independently optionally substituted, i.e., unsubstituted (an “unsubstituted alkyl”) or substituted (a “substituted alkyl”) with one or more substituents; e.g., for instance from 1 to 5 substituents, 1 to 3 substituents, or 1 substituent. In certain embodiments, the alkyl group is unsubstituted C1-10 alkyl (e.g., —CH3). In certain embodiments, the alkyl group is substituted C1-10 alkyl. Common alkyl abbreviations include Me (—CH3), Et (—CH2CH3), i-Pr (—CH(CH3)2), n-Pr (—CH2CH2CH3), n-Bu (—CH2CH2CH2CH3), or i-Bu (—CH2CH(CH3)2).
“Alkylene” as used herein, refers to an alkyl group wherein two hydrogens are removed to provide a divalent radical. When a range or number of carbons is provided for a particular “alkylene” group, it is understood that the range or number refers to the range or number of carbons in the linear carbon divalent chain. An “alkylene” group may be unsubstituted or substituted or with one or more substituents as described herein. Exemplary unsubstituted divalent alkylene groups include, but are not limited to, methylene (—CH2—), ethylene (—CH2CH2—), propylene (—CH2CH2CH2—), butylene (—CH2CH2CH2CH2—), pentylene (—CH2CH2CH2CH2CH2—), hexylene (—CH2CH2CH2CH2CH2CH2—), and the like. Exemplary substituted divalent alkylene groups, e.g., substituted with one or more alkyl (methyl) groups, include but are not limited to, substituted methylene (—CH(CH3)—, (—C(CH3)2—), substituted ethylene (—CH(CH3)CH2—, —CH2CH(CH3)—, —C(CH3)2CH2—, —CH2C(CH3)2—), substituted propylene (—CH(CH3)CH2CH2—, —CH2CH(CH3)CH2—, —CH2CH2CH(CH3)—, —C(CH3)2CH2CH2—, —CH2C(CH3)2CH2—, —CH2CH2C(CH3)2—), and the like.
“Alkenyl” as used herein, refers to a radical of a straight-chain or branched hydrocarbon group having from 2 to 20 carbon atoms, one or more carbon-carbon double bonds (e.g., 1, 2, 3, or 4 carbon-carbon double bonds), and optionally one or more carbon-carbon triple bonds (e.g., 1, 2, 3, or 4 carbon-carbon triple bonds) (“C2-20 alkenyl”). In certain embodiments, alkenyl does not contain any triple bonds. In certain embodiments, an alkenyl group has 2 to 10 carbon atoms (“C2-10 alkenyl”). In certain embodiments, an alkenyl group has 2 to 9 carbon atoms (“C2-9 alkenyl”). In certain embodiments, an alkenyl group has 2 to 8 carbon atoms (“C2-8 alkenyl”). In certain embodiments, an alkenyl group has 2 to 7 carbon atoms (“C2-7 alkenyl”). In certain embodiments, an alkenyl group has 2 to 6 carbon atoms (“C2-6 alkenyl”). In certain embodiments, an alkenyl group has 2 to 5 carbon atoms (“C2-5 alkenyl”). In certain embodiments, an alkenyl group has 2 to 4 carbon atoms (“C24 alkenyl”). In certain embodiments, an alkenyl group has 2 to 3 carbon atoms (“C2-3 alkenyl”). In certain embodiments, an alkenyl group has 2 carbon atoms (“C2 alkenyl”). The one or more carbon-carbon double bonds can be internal (such as in 2-butenyl) or terminal (such as in 1-butenyl). Examples of C2-4 alkenyl groups include ethenyl (C2), 1-propenyl (C3), 2-propenyl (C3), 1-butenyl (C4), 2-butenyl (C4), butadienyl (C4), and the like. Examples of C2-6 alkenyl groups include the aforementioned C2-4alkenyl groups as well as pentenyl (C5), pentadienyl (C5), hexenyl (C6), and the like. Additional examples of alkenyl include heptenyl (C7), octenyl (C5), octatrienyl (C5), and the like. Unless otherwise specified, each instance of an alkenyl group is independently optionally substituted, i.e., unsubstituted (an “unsubstituted alkenyl”) or substituted (a “substituted alkenyl”) with one or more substituents e.g., for instance from 1 to 5 substituents, 1 to 3 substituents, or 1 substituent. In certain embodiments, the alkenyl group is unsubstituted C2-10 alkenyl. In certain embodiments, the alkenyl group is substituted C2-10 alkenyl.
“Alkenylene” as used herein, refers to an alkenyl group wherein two hydrogens are removed to provide a divalent radical. When a range or number of carbons is provided for a particular “alkenylene” group, it is understood that the range or number refers to the range or number of carbons in the linear carbon divalent chain. An “alkenylene” group may be substituted or unsubstituted with one or more substituents as described herein. Exemplary unsubstituted divalent alkenylene groups include, but are not limited to, ethenylene (—CH═CH—) and propenylene (e.g., —CH═CHCH2—, —CH2—CH═CH—). Exemplary substituted divalent alkenylene groups, e.g., substituted with one or more alkyl (methyl) groups, include but are not limited to, substituted ethylene (—C(CH3)═CH—, —CH═C(CH3)—), substituted propylene (e.g., —C(CH3)═CHCH2—, —CH═C(CH3)CH2—, —CH═CHCH(CH3)—, —CH═CHC(CH3)2—, —CH(CH3)—CH═CH—, —C(CH3)2—CH═CH—, —CH2—C(CH3)═CH—, —CH2—CH═C(CH3)—), and the like.
“Alkynyl” as used herein, refers to a radical of a straight-chain or branched hydrocarbon group having from 2 to 20 carbon atoms, one or more carbon-carbon triple bonds (e.g., 1, 2, 3, or 4 carbon-carbon triple bonds), and optionally one or more carbon-carbon double bonds (e.g., 1, 2, 3, or 4 carbon-carbon double bonds) (“C2-20 alkynyl”). In certain embodiments, alkynyl does not contain any double bonds. In certain embodiments, an alkynyl group has 2 to 10 carbon atoms (“C2-10 alkynyl”). In certain embodiments, an alkynyl group has 2 to 9 carbon atoms (“C2-9 alkynyl”). In certain embodiments, an alkynyl group has 2 to 8 carbon atoms (“C2-8 alkynyl”). In certain embodiments, an alkynyl group has 2 to 7 carbon atoms (“C2-7 alkynyl”). In certain embodiments, an alkynyl group has 2 to 6 carbon atoms (“C2-6 alkynyl”). In certain embodiments, an alkynyl group has 2 to 5 carbon atoms (“C2-5 alkynyl”). In certain embodiments, an alkynyl group has 2 to 4 carbon atoms (“C2-4 alkynyl”). In certain embodiments, an alkynyl group has 2 to 3 carbon atoms (“C2-3 alkynyl”). In certain embodiments, an alkynyl group has 2 carbon atoms (“C2 alkynyl”). The one or more carbon-carbon triple bonds can be internal (such as in 2-butynyl) or terminal (such as in 1-butynyl). Examples of C2-4 alkynyl groups include, without limitation, ethynyl (C2), 1-propynyl (C3), 2-propynyl (C3), 1-butynyl (C4), 2-butynyl (C4), and the like. Examples of C2-6 alkenyl groups include the aforementioned C2-4 alkynyl groups as well as pentynyl (C5), hexynyl (C6), and the like. Additional examples of alkynyl include heptynyl (C7), octynyl (C5), and the like. Unless otherwise specified, each instance of an alkynyl group is independently optionally substituted, i.e., unsubstituted (an “unsubstituted alkynyl”) or substituted (a “substituted alkynyl”) with one or more substituents; e.g., for instance from 1 to 5 substituents, 1 to 3 substituents, or 1 substituent. In certain embodiments, the alkynyl group is unsubstituted C2-10 alkynyl. In certain embodiments, the alkynyl group is substituted C2-10 alkynyl.
“Alkynylene” as used herein, refers to a linear alkynyl group wherein two hydrogens are removed to provide a divalent radical. When a range or number of carbons is provided for a particular “alkynylene” group, it is understood that the range or number refers to the range or number of carbons in the linear carbon divalent chain. An “alkynylene” group may be substituted or unsubstituted with one or more substituents as described herein. Exemplary divalent alkynylene groups include, but are not limited to, substituted or unsubstituted ethynylene, substituted or unsubstituted propynylene, and the like.
The term “heteroalkyl,” as used herein, refers to an alkyl group, as defined herein, which further comprises 1 or more (e.g., 1, 2, 3, or 4) heteroatoms (e.g., oxygen, sulfur, nitrogen, boron, silicon, phosphorus) within the parent chain, wherein the one or more heteroatoms is inserted between adjacent carbon atoms within the parent carbon chain and/or one or more heteroatoms is inserted between a carbon atom and the parent molecule, i.e., between the point of attachment. In certain embodiments, a heteroalkyl group refers to a saturated group having from 1 to 10 carbon atoms and 1, 2, 3, or 4 heteroatoms (“heteroC1-10 alkyl”). In certain embodiments, a heteroalkyl group is a saturated group having 1 to 9 carbon atoms and 1, 2, 3, or 4 heteroatoms (“heteroC1-9 alkyl”). In certain embodiments, a heteroalkyl group is a saturated group having 1 to 8 carbon atoms and 1, 2, 3, or 4 heteroatoms (“heteroC1-8 alkyl”). In certain embodiments, a heteroalkyl group is a saturated group having 1 to 7 carbon atoms and 1, 2, 3, or 4 heteroatoms (“heteroC1-7 alkyl”). In certain embodiments, a heteroalkyl group is a group having 1 to 6 carbon atoms and 1, 2, or 3 heteroatoms (“heteroC1-6 alkyl”). In certain embodiments, a heteroalkyl group is a saturated group having 1 to 5 carbon atoms and 1 or 2 heteroatoms (“heteroC1-5 alkyl”). In certain embodiments, a heteroalkyl group is a saturated group having 1 to 4 carbon atoms and/or 2 heteroatoms (“heteroC1-4 alkyl”). In certain embodiments, a heteroalkyl group is a saturated group having 1 to 3 carbon atoms and 1 heteroatom (“heteroC1-3 alkyl”). In certain embodiments, a heteroalkyl group is a saturated group having 1 to 2 carbon atoms and 1 heteroatom (“heteroC1-2 alkyl”). In certain embodiments, a heteroalkyl group is a saturated group having 1 carbon atom and 1 heteroatom (“heteroC1 alkyl”). In certain embodiments, a heteroalkyl group is a saturated group having 2 to 6 carbon atoms and 1 or 2 heteroatoms (“heteroC2-6 alkyl”). Unless otherwise specified, each instance of a heteroalkyl group is independently unsubstituted (an “unsubstituted heteroalkyl”) or substituted (a “substituted heteroalkyl”) with one or more substituents. In certain embodiments, the heteroalkyl group is an unsubstituted heteroC1-10 alkyl. In certain embodiments, the heteroalkyl group is a substituted heteroC1-10 alkyl.
The term “heteroalkenyl,” as used herein, refers to an alkenyl group, as defined herein, which further comprises one or more (e.g., 1, 2, 3, or 4) heteroatoms (e.g., oxygen, sulfur, nitrogen, boron, silicon, phosphorus) wherein the one or more heteroatoms is inserted between adjacent carbon atoms within the parent carbon chain and/or one or more heteroatoms is inserted between a carbon atom and the parent molecule, i.e., between the point of attachment. In certain embodiments, a heteroalkenyl group refers to a group having from 2 to 10 carbon atoms, at least one double bond, and 1, 2, 3, or 4 heteroatoms (“heteroC2-10 alkenyl”). In certain embodiments, a heteroalkenyl group has 2 to 9 carbon atoms at least one double bond, and 1, 2, 3, or 4 heteroatoms (“heteroC2-9 alkenyl”). In certain embodiments, a heteroalkenyl group has 2 to 8 carbon atoms, at least one double bond, and 1, 2, 3, or 4 heteroatoms (“heteroC2-8 alkenyl”). In certain embodiments, a heteroalkenyl group has 2 to 7 carbon atoms, at least one double bond, and 1, 2, 3, or 4 heteroatoms (“heteroC2-7 alkenyl”). In certain embodiments, a heteroalkenyl group has 2 to 6 carbon atoms, at least one double bond, and 1, 2, or 3 heteroatoms (“heteroC2-6 alkenyl”). In certain embodiments, a heteroalkenyl group has 2 to 5 carbon atoms, at least one double bond, and 1 or 2 heteroatoms (“heteroC2-5 alkenyl”). In certain embodiments, a heteroalkenyl group has 2 to 4 carbon atoms, at least one double bond, and lor 2 heteroatoms (“heteroC2-4 alkenyl”). In certain embodiments, a heteroalkenyl group has 2 to 3 carbon atoms, at least one double bond, and 1 heteroatom (“heteroC2-3 alkenyl”). In certain embodiments, a heteroalkenyl group has 2 to 6 carbon atoms, at least one double bond, and 1 or 2 heteroatoms (“heteroC2-6 alkenyl”). Unless otherwise specified, each instance of a heteroalkenyl group is independently unsubstituted (an “unsubstituted heteroalkenyl”) or substituted (a “substituted heteroalkenyl”) with one or more substituents. In certain embodiments, the heteroalkenyl group is an unsubstituted heteroC2-10 alkenyl. In certain embodiments, the heteroalkenyl group is a substituted heteroC2-10 alkenyl.
The term “heteroalkynyl,” as used herein, refers to an alkynyl group, as defined herein, which further comprises one or more (e.g., 1, 2, 3, or 4) heteroatoms (e.g., oxygen, sulfur, nitrogen, boron, silicon, phosphorus) wherein the one or more heteroatoms is inserted between adjacent carbon atoms within the parent carbon chain and/or one or more heteroatoms are inserted between a carbon atom and the parent molecule, i.e., between the point of attachment. In certain embodiments, a heteroalkynyl group refers to a group having from 2 to 10 carbon atoms, at least one triple bond, and 1, 2, 3, or 4 heteroatoms (“heteroC2-10 alkynyl”). In certain embodiments, a heteroalkynyl group has 2 to 9 carbon atoms, at least one triple bond, and 1, 2, 3, or 4 heteroatoms (“heteroC2-9 alkynyl”). In certain embodiments, a heteroalkynyl group has 2 to 8 carbon atoms, at least one triple bond, and 1, 2, 3, or 4 heteroatoms (“heteroC2-8 alkynyl”). In certain embodiments, a heteroalkynyl group has 2 to 7 carbon atoms, at least one triple bond, and 1, 2, 3, or 4 heteroatoms (“heteroC2-7 alkynyl”). In certain embodiments, a heteroalkynyl group has 2 to 6 carbon atoms, at least one triple bond, and 1, 2, or 3 heteroatoms (“heteroC2-6 alkynyl”). In certain embodiments, a heteroalkynyl group has 2 to 5 carbon atoms, at least one triple bond, and 1 or 2 heteroatoms (“heteroC2-5 alkynyl”). In certain embodiments, a heteroalkynyl group has 2 to 4 carbon atoms, at least one triple bond, and lor 2 heteroatoms (“heteroC2-4 alkynyl”). In certain embodiments, a heteroalkynyl group has 2 to 3 carbon atoms, at least one triple bond, and 1 heteroatom (“heteroC2-3 alkynyl”). In certain embodiments, a heteroalkynyl group has 2 to 6 carbon atoms, at least one triple bond, and 1 or 2 heteroatoms (“heteroC2-6 alkynyl”). Unless otherwise specified, each instance of a heteroalkynyl group is independently unsubstituted (an “unsubstituted heteroalkynyl”) or substituted (a “substituted heteroalkynyl”) with one or more substituents. In certain embodiments, the heteroalkynyl group is an unsubstituted heteroC2-10 alkynyl. In certain embodiments, the heteroalkynyl group is a substituted heteroC2-10 alkynyl.
Analogous to “alkylene,” “alkenylene,” and “alkynylene” as defined above, “heteroalkylene,” “heteroalkenylene,” and “heteroalkynylene,” as used herein, refer to a divalent radical of heteroalkyl, heteroalkenyl, and heteroalkynyl group respectively. When a range or number of carbons is provided for a particular “heteroalkylene,” “heteroalkenylene,” or “heteroalkynylene,” group, it is understood that the range or number refers to the range or number of carbons in the linear divalent chain. “Heteroalkylene,” “heteroalkenylene,” and “heteroalkynylene” groups may be substituted or unsubstituted with one or more substituents as described herein.
“Aryl” refers to a radical of a monocyclic or polycyclic (e.g., bicyclic or tricyclic) 4n+2 aromatic ring system (e.g., having 6, 10, or 14 7L electrons shared in a cyclic array) having 6-14 ring carbon atoms and zero heteroatoms provided in the aromatic ring system (“C6-14 aryl”). In some embodiments, an aryl group has six ring carbon atoms (“C6 aryl”; e.g., phenyl). In some embodiments, an aryl group has ten ring carbon atoms (“C10 aryl”; e.g., naphthyl such as 1-naphthyl and 2-naphthyl). In some embodiments, an aryl group has fourteen ring carbon atoms (“C14 aryl”; e.g., anthracyl).
Typical aryl groups include, but are not limited to, groups derived from aceanthrylene, acenaphthylene, acephenanthrylene, anthracene, azulene, benzene, chrysene, coronene, fluoranthene, fluorene, hexacene, hexaphene, hexalene, as-indacene, s-indacene, indane, indene, naphthalene, octacene, octaphene, octalene, ovalene, penta-2,4-diene, pentacene, pentalene, pentaphene, perylene, phenalene, phenanthrene, picene, pleiadene, pyrene, pyranthrene, rubicene, triphenylene, and trinaphthalene. Particular aryl groups include phenyl, naphthyl, indenyl, and tetrahydronaphthyl. Unless otherwise specified, each instance of an aryl group is independently optionally substituted, i.e., unsubstituted (an “unsubstituted aryl”) or substituted (a “substituted aryl”) with one or more substituents. In certain embodiments, the aryl group is unsubstituted C6-14 aryl. In certain embodiments, the aryl group is substituted C6-14 aryl.
“Arylene” as used herein, refers to an aryl group wherein two hydrogens are removed to provide a divalent radical. When a range or number of carbons is provided for a particular “arylene” group, it is understood that the range or number refers to the range or number of carbons in the aryl group. An “arylene” group may be substituted or unsubstituted with one or more substituents as described herein.
“Heteroaryl” refers to a radical of a 5- to 14-membered monocyclic or polycyclic 4n+2 aromatic ring system (e.g., having 6, 10, or 14 7L electrons shared in a cyclic array) having ring carbon atoms and 1-8 ring heteroatoms provided in the aromatic ring system, wherein each heteroatom is independently selected from nitrogen, oxygen and sulfur (“5- to 14-membered heteroaryl”). In heteroaryl groups that contain one or more nitrogen atoms, the point of attachment can be a carbon or nitrogen atom, as valency permits. Heteroaryl bicyclic ring systems can include one or more heteroatoms in one or both rings.
“Heteroaryl” also includes ring systems wherein the heteroaryl group, as defined above, is fused with one or more aryl groups wherein the point of attachment is either on the heteroaryl or the one or more aryl groups, and in such instances, the number of ring members designates the total number of ring members in the fused (aryl/heteroaryl) ring system. When substitution is indicated in such instances, unless otherwise specified, substitution can occur on either the heteroaryl or the one or more aryl groups. Bicyclic heteroaryl groups wherein one ring does not contain a heteroatom (e.g., indolyl, quinolinyl, carbazolyl, and the like) the point of attachment can be on either ring, i.e., either the ring bearing a heteroatom (e.g., 2-indolyl) or the ring that does not contain a heteroatom (e.g., 5-indolyl).
In certain embodiments, a heteroaryl is a 5- to 10-membered aromatic ring system having ring carbon atoms and 1-4 ring heteroatoms provided in the aromatic ring system, wherein each heteroatom is independently selected from nitrogen, oxygen, and sulfur (“5- to 10-membered heteroaryl”). In certain embodiments, a heteroaryl is a 5- to 9-membered aromatic ring system having ring carbon atoms and 1-4 ring heteroatoms provided in the aromatic ring system, wherein each heteroatom is independently selected from nitrogen, oxygen, and sulfur (“5- to 9-membered heteroaryl”). In certain embodiments, a heteroaryl is a 5- to 8-membered aromatic ring system having ring carbon atoms and 1-4 ring heteroatoms provided in the aromatic ring system, wherein each heteroatom is independently selected from nitrogen, oxygen, and sulfur (“5- to 8-membered heteroaryl”). In certain embodiments, a heteroaryl group is a 5- to 6-membered aromatic ring system having ring carbon atoms and 1-4 ring heteroatoms provided in the aromatic ring system, wherein each heteroatom is independently selected from nitrogen, oxygen, and sulfur (“5- to 6-membered heteroaryl”). In certain embodiments, the 5- to 6-membered heteroaryl has 1-3 ring heteroatoms independently selected from nitrogen, oxygen, and sulfur. In certain embodiments, the 5- to 6-membered heteroaryl has 1-2 ring heteroatoms independently selected from nitrogen, oxygen, and sulfur. In certain embodiments, the 5- to 6-membered heteroaryl has 1 ring heteroatom selected from nitrogen, oxygen, and sulfur. Unless otherwise specified, each instance of a heteroaryl group is independently optionally substituted, i.e., unsubstituted (an “unsubstituted heteroaryl”) or substituted (a “substituted heteroaryl”) with one or more substituents. In certain embodiments, the heteroaryl group is unsubstituted 5- to 14-membered heteroaryl. In certain embodiments, the heteroaryl group is substituted 5- to 14-membered heteroaryl.
Exemplary 5-membered heteroaryl containing one heteroatom include, without limitation, pyrrolyl, furanyl and thiophenyl. Exemplary 5-membered heteroaryl containing two heteroatoms include, without limitation, imidazolyl, pyrazolyl, oxazolyl, isoxazolyl, thiazolyl, and isothiazolyl. Exemplary 5-membered heteroaryl containing three heteroatoms include, without limitation, triazolyl, oxadiazolyl, and thiadiazolyl. Exemplary 5-membered heteroaryl containing four heteroatoms include, without limitation, tetrazolyl. Exemplary 6-membered heteroaryl containing one heteroatom include, without limitation, pyridinyl. Exemplary 6-membered heteroaryl containing two heteroatoms include, without limitation, pyridazinyl, pyrimidinyl, and pyrazinyl. Exemplary 6-membered heteroaryl containing three or four heteroatoms include, without limitation, triazinyl and tetrazinyl, respectively. Exemplary 7-membered heteroaryl containing one heteroatom include, without limitation, azepinyl, oxepinyl, and thiepinyl. Exemplary 5,6-bicyclic heteroaryl include, without limitation, indolyl, isoindolyl, indazolyl, benzotriazolyl, benzothiophenyl, isobenzothiophenyl, benzofuranyl, benzoisofuranyl, benzimidazolyl, benzoxazolyl, benzisoxazolyl, benzoxadiazolyl, benzthiazolyl, benzisothiazolyl, benzthiadiazolyl, indolizinyl, and purinyl. Exemplary 6,6-bicyclic heteroaryl include, without limitation, naphthyridinyl, pteridinyl, quinolinyl, isoquinolinyl, cinnolinyl, quinoxalinyl, phthalazinyl, and quinazolinyl.
“Heteroarylene” as used herein, refers to a heteroaryl group wherein two hydrogens are removed to provide a divalent radical. When a range or number of ring members is provided for a particular “heteroarylene” group, it is understood that the range or number refers to the number of ring members in the heteroaryl group. A “heteroarylene” group may be substituted or unsubstituted with one or more substituents as described herein.
“Carbocyclyl” refers to a radical of a non-aromatic cyclic hydrocarbon group having from 3 to 12 ring carbon atoms (“C3-12 carbocyclyl”) and zero heteroatoms in the nonaromatic ring system. In certain embodiments, a carbocyclyl group has 3 to 10 ring carbon atoms (“C3-10 carbocyclyl”). In certain embodiments, a carbocyclyl group has 3 to 8 ring carbon atoms (“C3-8 carbocyclyl”). In certain embodiments, a carbocyclyl group has 3 to 6 ring carbon atoms (“C3-6 carbocyclyl”). In certain embodiments, a carbocyclyl group has 5 to 12 ring carbon atoms (“C5-12 carbocyclyl”). In certain embodiments, a carbocyclyl group has 5 to 10 ring carbon atoms (“C5-10 carbocyclyl”). In certain embodiments, a carbocyclyl group has 5 to 8 ring carbon atoms (“C5-8 carbocyclyl”). In certain embodiments, a carbocyclyl group has 5 or 6 ring carbon atoms (“C5-6 carbocyclyl”). Exemplary C3-6 carbocyclyl include, without limitation, cyclopropyl (C3), cyclopropenyl (C3), cyclobutyl (C4), cyclobutenyl (C4), cyclopentyl (C5), cyclopentenyl (C5), cyclohexyl (C6), cyclohexenyl (C6), cyclohexadienyl (C6), and the like. Exemplary C3-8 carbocyclyl include, without limitation, the aforementioned C3-6 carbocyclyl groups as well as cycloheptyl (C7), cycloheptenyl (C7), cycloheptadienyl (C7), cycloheptatrienyl (C7), cyclooctyl (C5), cyclooctenyl (C5), bicyclo[2.2.1]heptanyl (C7), bicyclo[2.2.2]octanyl (C5), and the like. Exemplary C3-10 carbocyclyl include, without limitation, the aforementioned C3-8 carbocyclyl groups as well as cyclononyl (C9), cyclononenyl (C9), cyclodecyl (C10), cyclodecenyl (C10), octahydro-1H-indenyl (C9), decahydronaphthalenyl (C10), spiro[4.5]decanyl (C10), and the like.
In certain embodiments, “carbocyclyl” is a monocyclic, saturated carbocyclyl group having from 3 to 12 ring carbon atoms (“C3-12 carbocyclyl”). In certain embodiments, “carbocyclyl” is a monocyclic, saturated carbocyclyl group having from 3 to 10 ring carbon atoms (“C3-10 carbocyclyl”). In certain embodiments, “carbocyclyl” is a monocyclic, saturated carbocyclyl group having from 3 to 8 ring carbon atoms (“C3-8 carbocyclyl”). In certain embodiments, “carbocyclyl” is a monocyclic, saturated carbocyclyl group having from 3 to 6 ring carbon atoms (“C3-6 carbocyclyl”). In certain embodiments, “carbocyclyl” is a monocyclic, saturated carbocyclyl group having from 5 to 12 ring carbon atoms (“C5-12 carbocyclyl”). In certain embodiments, a carbocyclyl group has 5 to 10 ring carbon atoms (“C5-10 carbocyclyl”). In certain embodiments, a carbocyclyl group has 5 to 8 ring carbon atoms (“C5-8 carbocyclyl”). In certain embodiments, “carbocyclyl” is a monocyclic, saturated carbocyclyl group having 5 or 6 ring carbon atoms (“C5-6 carbocyclyl”). Examples of C5-6 carbocyclyl include cyclopentyl (C5) and cyclohexyl (C5). Examples of C3-6 carbocyclyl include the aforementioned C5-6 carbocyclyl groups as well as cyclopropyl (C3) and cyclobutyl (C4). Examples of C3-8 carbocyclyl include the aforementioned C3-6 carbocyclyl groups as well as cycloheptyl (C7) and cyclooctyl (C5). Unless otherwise specified, each instance of a carbocyclyl group is independently unsubstituted (an “unsubstituted carbocyclyl”) or substituted (a “substituted carbocyclyl”) with one or more substituents. In certain embodiments, the carbocyclyl group is unsubstituted C3-12 carbocyclyl. In certain embodiments, the carbocyclyl group is substituted C3-12 carbocyclyl.
As the foregoing examples illustrate, in certain embodiments, the carbocyclyl group is either monocyclic (“monocyclic carbocyclyl”) or polycyclic (“polycyclic carbocyclyl”) that contains a fused, bridged or spiro ring system and can be saturated or can be partially unsaturated. Unless otherwise specified, each instance of a carbocyclyl group is independently optionally substituted, i.e., unsubstituted (an “unsubstituted carbocyclyl”) or substituted (a “substituted carbocyclyl”) with one or more substituents. In certain embodiments, the carbocyclyl group is unsubstituted C3-12 carbocyclyl. In certain embodiments, the carbocyclyl group is a substituted C3-12 carbocyclyl.
“Fused carbocyclyl” or “fused carbocycle” refers to ring systems wherein the carbocyclyl group, as defined above, is fused with, i.e., share two common atoms (as such, share one common bond), one or more carbocyclyl groups, as defined above, wherein the point of attachment is on any of the fused rings. In such instances, the number of carbons designates the total number of carbons in the fused ring system. When substitution is indicated, unless otherwise specified, substitution can occur on any of the fused rings.
“Spiro carbocyclyl” or or “spiro carbocycle” refers to ring systems wherein the carbocyclyl group, as defined above, form spiro structure with, i.e., share one common atom with, one or more carbocyclyl groups, as defined above, wherein the point of attachment is on the carbocyclyl rings in which the spiro structure is embedded. In such instances, the number of carbons designates the total number of carbons of the carbocyclyl rings in which the spiro structure is embedded. When substitution is indicated, unless otherwise specified, substitution can occur on the carbocyclyl rings in which the spiro structure is embedded.
“Bridged carbocyclyl” or or “bridged carbocycle” refers to ring systems wherein the carbocyclyl group, as defined above, form bridged structure with, i.e., share more than two atoms (as such, share more than one bonds) with, one or more carbocyclyl groups, as defined above, wherein the point of attachment is on any of the carbocyclyl rings in which the bridged structure is embedded. In such instances, the number of carbons designates the total number of carbons of the carbocyclyl rings in which the bridged structure is embedded. When substitution is indicated, unless otherwise specified, substitution can occur on any of the carbocyclyl rings in which the bridged structure is embedded.
“Carbocyclylene” as used herein, refers to a carbocyclyl group wherein two hydrogens are removed to provide a divalent radical. The divalent radical may be present on different atoms or the same atom of the carbocyclylene group. When a range or number of carbons is provided for a particular “carbocyclyl” group, it is understood that the range or number refers to the range or number of carbons in the carbocyclyl group. A “carbocyclyl” group may be substituted or unsubstituted with one or more substituents as described herein.
“Heterocyclyl” refers to a radical of a 3- to 12-membered non-aromatic ring system having ring carbon atoms and 1 to 4 ring heteroatoms, wherein each heteroatom is independently selected from nitrogen, oxygen, sulfur, boron, phosphorus, and silicon (“3- to 12-membered heterocyclyl”). In heterocyclyl groups that contain one or more nitrogen atoms, the point of attachment can be a carbon or nitrogen atom, as valency permits. Exemplary 3-membered heterocyclyl groups containing one heteroatom include, without limitation, azirdinyl, oxiranyl, thiorenyl. Exemplary 4-membered heterocyclyl groups containing one heteroatom include, without limitation, azetidinyl, oxetanyl and thietanyl. Exemplary 5membered heterocyclyl groups containing one heteroatom include, without limitation, tetrahydrofuranyl, dihydrofuranyl, tetrahydrothiophenyl, dihydrothiophenyl, pyrrolidinyl, dihydropyrrolyl and pyrrolyl-2,5-dione. Exemplary 5-membered heterocyclyl groups containing two heteroatoms include, without limitation, dioxolanyl, oxasulfuranyl, disulfuranyl, and oxazolidin-2-one. Exemplary 5-membered heterocyclyl groups containing three heteroatoms include, without limitation, triazolinyl, oxadiazolinyl, and thiadiazolinyl. Exemplary 6-membered heterocyclyl groups containing one heteroatom include, without limitation, piperidinyl, tetrahydropyranyl, dihydropyridinyl, and thianyl. Exemplary 6-membered heterocyclyl groups containing two heteroatoms include, without limitation, piperazinyl, morpholinyl, dithianyl, dioxanyl. Exemplary 6-membered heterocyclyl groups containing two heteroatoms include, without limitation, triazinanyl. Exemplary 7-membered heterocyclyl groups containing one heteroatom include, without limitation, azepanyl, oxepanyl and thiepanyl. Exemplary 8-membered heterocyclyl groups containing one heteroatom include, without limitation, azocanyl, oxecanyl and thiocanyl. Exemplary 5-membered heterocyclyl groups fused to a C6 aryl ring (also referred to herein as a 5,6-bicyclic heterocyclic ring) include, without limitation, indolinyl, isoindolinyl, dihydrobenzofuranyl, dihydrobenzothienyl, benzoxazolinonyl, and the like. Exemplary 6-membered heterocyclyl groups fused to an aryl ring (also referred to herein as a 6,6-bicyclic heterocyclic ring) include, without limitation, tetrahydroquinolinyl, tetrahydroisoquinolinyl, and the like.
In certain embodiments, a heterocyclyl group is a 5- to 12-membered non-aromatic ring system having ring carbon atoms and 1-4 ring heteroatoms, wherein each heteroatom is independently selected from nitrogen, oxygen, sulfur, boron, phosphorus, and silicon (“5- to 12-membered heterocyclyl”). In certain embodiments, a heterocyclyl group is a 5- to 10-membered non-aromatic ring system having ring carbon atoms and 1-4 ring heteroatoms, wherein each heteroatom is independently selected from nitrogen, oxygen, sulfur, boron, phosphorus, and silicon (“5- to 10-membered heterocyclyl”). In certain embodiments, a heterocyclyl group is a 5- to 8-membered non-aromatic ring system having ring carbon atoms and 1-4 ring heteroatoms, wherein each heteroatom is independently selected from nitrogen, oxygen, and sulfur (“5- to 8-membered heterocyclyl”). In certain embodiments, a heterocyclyl group is a 5- to 6-membered non-aromatic ring system having ring carbon atoms and 1-4 ring heteroatoms, wherein each heteroatom is independently selected from nitrogen, oxygen, and sulfur (“5- to 6-membered heterocyclyl”). In certain embodiments, the 5- to 6-membered heterocyclyl has 1-3 ring heteroatoms selected from nitrogen, oxygen, and sulfur. In certain embodiments, the 5- to 6-membered heterocyclyl has 1-2 ring heteroatoms selected from nitrogen, oxygen, and sulfur. In certain embodiments, the 5- to 6-membered heterocyclyl has one ring heteroatom selected from nitrogen, oxygen, and sulfur.
As the foregoing examples illustrate, in certain embodiments, a heterocyclyl group can either be monocyclic (“monocyclic heterocyclyl”) or polycyclic (“polycyclic heterocyclyl”) that contains a fused, bridged or spiro ring system, and can be saturated or can be partially unsaturated. Heterocyclyl polycyclic ring systems can include one or more heteroatoms in one or both rings. “Heterocyclyl” also includes ring systems wherein the heterocyclyl group, as defined above, is fused with one or more carbocyclyl groups wherein the point of attachment is either on the carbocyclyl or heterocyclyl ring, and in such instances, the number of ring members designates the total number of ring members in the entire ring system. When substitution is indicated in such instances, unless otherwise specified, substitution can occur on either the heterocyclyl or the one or more carbocyclyl groups. Unless otherwise specified, each instance of heterocyclyl is independently optionally substituted, i.e., unsubstituted (an “unsubstituted heterocyclyl”) or substituted (a “substituted heterocyclyl”) with one or more substituents. In certain embodiments, the heterocyclyl group is unsubstituted 3- to 12-membered heterocyclyl. In certain embodiments, the heterocyclyl group is substituted 3- to 12-membered heterocyclyl.
“Fused heterocyclyl” or “fused heterocycle” refers to ring systems wherein the heterocyclyl group, as defined above, is fused with, i.e., share two common atoms (as such, share one common bond) with, one or more heterocyclyl or carbocyclyl groups, as defined above, wherein the point of attachment is on any of the fused rings. In such instances, the number of ring members designates the total number of ring members in the fused ring system. When substitution is indicated, unless otherwise specified, substitution can occur on any of the fused rings.
“Spiro heterocyclyl” or “spiro heterocycle” refers to ring systems wherein the heterocyclyl group, as defined above, form spiro structure with, i.e., share one common atom with, one or more heterocyclyl or carbocyclyl groups, as defined above, wherein the point of attachment is on the heterocyclyl or carbocyclyl rings in which the spiro structure is embedded. In such instances, the number of ring members designates the total number of ring members of the heterocyclyl or carbocyclyl rings in which the spiro structure is embedded. When substitution is indicated, unless otherwise specified, substitution can occur on any of the heterocyclyl or carbocyclyl rings in which the spiro structure is embedded.
“Bridged heterocyclyl” or “bridged heterocycle” refers to ring systems wherein the heterocyclyl group, as defined above, form bridged structure with, i.e., share more than two atoms (as such, share more than one bonds) with, one or more heterocyclyl or carbocyclyl groups, as defined above, wherein the point of attachment is on the heterocyclyl or carbocyclyl rings in which the bridged structure is embedded. In such instances, the number of ring members designates the total number of ring members of the heterocyclyl or carbocyclyl rings in which the bridged structure is embedded. When substitution is indicated, unless otherwise specified, substitution can occur on any of the heterocyclyl or carbocyclyl rings in which the bridged structure is embedded.
“Heterocyclylene” as used herein, refers to a heterocyclyl group wherein two hydrogens are removed to provide a divalent radical. The divalent radical may be present on different atoms or the same atom of the heterocyclylene group. When a range or number of ring members is provided for a particular “heterocyclylene” group, it is understood that the range or number refers to the number of ring members in the heterocyclylene group. A “heterocyclylene” group may be substituted or unsubstituted with one or more substituents as described herein.
“Alkoxy” as used herein, refers to the group —OR, wherein R is alkyl as defined herein. C1-6 alkoxy refers to the group —OR, wherein each R is C1-6 alkyl, as defined herein. Exemplary C1-6 alkyl is set forth above.
“Alkylamino” as used herein, refers to the group —NHR or —NR2, wherein each R is independently alkyl, as defined herein. C1-6 alkylamino refers to the group —NHR or —NR2, wherein each R is independently C1-6 alkyl, as defined herein. Exemplary C1-6 alkyl is set forth above.
“Oxo” refers to ═O. When a group other than aryl and heteroaryl or an atom is substituted with an oxo, it is meant to indicate that two geminal radicals on that group or atom form a double bond with an oxygen radical. When a heteroaryl is substituted with an oxo, it is meant to indicate that a resonance structure/tautomer involving a heteroatom provides a carbon atom that is able to form two geminal radicals, which form a double bond with an oxygen radical.
“Halo” or “halogen” refers to fluoro (F), chloro (Cl), bromo (Br), and iodo (I). In certain embodiments, the halo group is either fluoro or chloro.
“Protecting group” as used herein is art-recognized and refers to a chemical moiety introduced into a molecule by chemical modification of a functional group (e.g., hydroxyl, amino, thio, and carboxylic acid) to obtain chemoselectivity in a subsequent chemical reaction, during which the unmodified functional group may not survive or may interfere with the chemical reaction. Common functional groups that need to be protected include but not limited to hydroxyl, amino, thiol, and carboxylic acid. Accordingly, the protecting groups are termed hydroxyl-protecting groups, amino-protecting groups, thiol-protecting groups, and carboxylic acid-protecting groups, respectively.
Common types of hydroxyl-protecting groups include but not limited to ethers (e.g., methoxymethyl (MOM), P-Methoxyethoxymethyl (MEM), tetrahydropyranyl (THP), p-methoxyphenyl (PMP), t-butyl, triphenylmethyl (Trityl), allyl, and benzyl ether (Bn)), silyl ethers (e.g., t-butyldiphenylsilyl (TBDPS), trimethylsilyl (TMS), triisopropylsilyl (TIPS), tri-iso-propylsilyloxymethyl (TOM), and t-butyldimethylsilyl (TBDMS)), and esters (e.g., pivalic acid ester (Piv) and benzoic acid ester (benzoate; Bz)).
Common types of amino-protecting groups include but not limited to carbamates (e.g., t-butyloxycarbonyl (Boc), 9-fluorenylmethyloxycarbonyl (Fmoc), p-methoxybenzyl carbonyl (Moz or MeOZ), 2,2,2-trichloroehtoxycarbonyl (Troc), and benzyl carbamate (Cbz)), esters (e.g., acetyl (Ac); benzoyl (Bz), trifluoroacetyl, and phthalimide), amines (e.g, benzyl (Bn), p-methoxybenzyl (PMB), p-methoxyphenyl (PMP), and triphenylmethyl (trityl)), and sulfonamides (e.g., tosyl (Ts), N-alkyl nitrobenzenesulfonamides (Nosyl), and 2-nitrophenylsulfenyl (Nps)).
Common types of thiol-protecting groups include but not limited to sulfide (e.g., p-methylbenzyl (Meb), t-butyl, acetamidomethyl (Acm), and triphenylmethyl (Trityl)).
Common types of carboxylic acid-protecting groups include but not limited to esters (e.g., methyl ester, triphenylmethyl (Trityl), t-butyl ester, benzyl ester (Bn), S-t-butyl ester, silyl esters, and orthoesters) and oxazoline.
These and other exemplary substituents are described in more detail in the Detailed Description, Examples, and claims. The invention is not intended to be limited in any manner by the above exemplary listing of substituents.
“Pharmaceutically acceptable” means approved or approvable by a regulatory agency of the Federal or a state government or the corresponding agency in countries other than the United States, or that is listed in the U.S. Pharmacopoeia or other generally recognized pharmacopoeia for use in animals, and more particularly, in humans.
“Pharmaceutically acceptable salt” refers to a salt of a compound of the disclosure that is pharmaceutically acceptable and that possesses the desired pharmacological activity of the parent compound. In particular, such salts are non-toxic may be inorganic or organic acid addition salts and base addition salts. Specifically, such salts include: (1) acid addition salts, formed with inorganic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, phosphoric acid, and the like; or formed with organic acids such as acetic acid, propionic acid, hexanoic acid, cyclopentanepropionic acid, glycolic acid, pyruvic acid, lactic acid, malonic acid, succinic acid, malic acid, maleic acid, fumaric acid, tartaric acid, citric acid, benzoic acid, 3-(4-hydroxybenzoyl)benzoic acid, cinnamic acid, mandelic acid, methanesulfonic acid, ethanesulfonic acid, 1,2-ethane-disulfonic acid, 2-hydroxyethanesulfonic acid, benzenesulfonic acid, chlorobenzenesulfonic acid, 2-naphthalenesulfonic acid, 4-toluenesulfonic acid, camphorsulfonic acid, 4-methylbicyclo [2.2.2]-oct-2-ene-1-carboxylic acid, glucoheptonic acid, 3-phenylpropionic acid, trimethylacetic acid, tertiary butylacetic acid, lauryl sulfuric acid, gluconic acid, glutamic acid, hydroxynaphthoic acid, salicylic acid, stearic acid, muconic acid, and the like; or (2) salts formed when an acidic proton present in the parent compound either is replaced by a metal ion, e.g., an alkali metal ion, an alkaline earth ion, or an aluminum ion; or coordinates with an organic base such as ethanolamine, diethanolamine, triethanolamine, N-methylglucamine and the like. Salts further include, by way of example only, sodium potassium, calcium, magnesium, ammonium, tetraalkylammonium, and the like; and when the compound contains a basic functionality, salts of nontoxic organic or inorganic acids, such as hydrochloride, hydrobromide, tartrate, mesylate, acetate, maleate, oxalate and the like.
A “subject” to which administration is contemplated includes, but is not limited to, humans (i.e., a male or female of any age group, e.g., a pediatric subject (e.g., infant, child, adolescent) or an adult subject (e.g., young adult, middle aged adult or senior adult) and/or a non-human animal, e.g., a mammal such as primates (e.g., cynomolgus monkeys, rhesus monkeys), cattle, pigs, horses, sheep, goats, rodents, cats, and/or dogs. In certain embodiments, the subject is a human. In certain embodiments, the subject is a non-human animal.
An “effective amount” means the amount of a compound that, when administered to a subject for treating or preventing a disease, is sufficient to affect such treatment or prevention. The “effective amount” can vary depending on the compound, the disease and its severity, and the age, weight, etc., of the subject to be treated. A “therapeutically effective amount” refers to the effective amount for therapeutic treatment. A “prophylatically effective amount” refers to the effective amount for prophylactic treatment.
“Preventing”, “prevention” or “prophylactic treatment” refers to a reduction in risk of acquiring or developing a disease or disorder (i.e., causing at least one of the clinical symptoms of the disease not to develop in a subject not yet exposed to a disease-causing agent, or in a subject who is predisposed to the disease in advance of disease onset).
The term “prophylaxis” is related to “prevention,” and refers to a measure or procedure the purpose of which is to prevent, rather than to treat or cure a disease. Non limiting examples of prophylactic measures may include the administration of vaccines; the administration of low molecular weight heparin to hospital patients at risk for thrombosis due, for example, to immobilization, and the administration of an anti-malarial agent such as chloroquine, in advance of a visit to a geographical region where malaria is endemic or the risk of contracting malaria is high.
“Treating” or “treatment” or “therapeutic treatment” of any disease or disorder refers, in one embodiment, to ameliorating the disease or disorder (i.e., arresting the disease or reducing the manifestation, extent or severity of at least one of the clinical symptoms thereof). In another embodiment, “treating” or “treatment” refers to ameliorating at least one physical parameter, which may not be discernible by the subject. In yet another embodiment, “treating” or “treatment” refers to modulating the disease or disorder, either physically, (e.g., stabilization of a discernible symptom), physiologically, (e.g., stabilization of a physical parameter), or both. In a further embodiment, “treating” or “treatment” relates to slowing the progression of the disease.
The term “about” when referring to a number or a numerical range means that the number or numerical range referred to is an approximation within experimental variability or within statistical experimental error, and thus the number or numerical range, in some instances, will vary between 1% and 15% of the stated number or numerical range. In certain embodiments, the number or numerical range vary by 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, or 15% of the stated number or numerical range. In certain embodiments, the number or numerical range vary by 1%, 2%, 3%, 4%, or 5% of the stated number or numerical range. In certain embodiments, the number or numerical range vary by 1%, 2%, or 3% of the stated number or numerical range.
The term “comprising” (and related terms such as “comprise” or “comprises” or “having” or “including”) is not intended to exclude that in other certain embodiments, for example, an embodiment of any composition of matter, composition, method, or process, or the like, described herein, “consist of” or “consist essentially of” the described features.
The phrase “and/or,” as used herein in the specification and in the claims, should be understood to mean “either or both” of the elements so conjoined, i.e., elements that are conjunctively present in some cases and disjunctively present in other cases. Multiple elements listed with “and/or” should be construed in the same fashion, i.e., “one or more” of the elements so conjoined. Other elements may optionally be present other than the elements specifically identified by the “and/or” clause, whether related or unrelated to those elements specifically identified. Thus, as a non-limiting example, a reference to “A and/or B”, when used in conjunction with open-ended language such as “comprising” may refer, in one embodiment, to A only (optionally including elements other than B); in another embodiment, to B only (optionally including elements other than A); in yet another embodiment, to both A and B (optionally including other elements); etc.
As used herein in the specification and in the claims, “or” should be understood to have the same meaning as “and/or” as defined above. For example, when separating items in a list, “or” or “and/or” shall be interpreted as being inclusive, i.e., the inclusion of at least one, but also including more than one, of a number or list of elements, and, optionally, additional unlisted items. Only terms clearly indicated to the contrary, such as “only one of” or “exactly one of,” or, when used in the claims, “consisting of,” will refer to the inclusion of exactly one element of a number or list of elements. In general, the term “or” as used herein shall only be interpreted as indicating exclusive alternatives (i.e., “one or the other but not both”) when preceded by terms of exclusivity, such as “either,” “one of,” “only one of,” or “exactly one of” “Consisting essentially of,” when used in the claims, shall have its ordinary meaning as used in the field of patent law.
As used herein in the specification and in the claims, the phrase “at least one,” in reference to a list of one or more elements, should be understood to mean at least one element selected from any one or more of the elements in the list of elements, but not necessarily including at least one of each and every element specifically listed within the list of elements and not excluding any combinations of elements in the list of elements. This definition also allows that elements may optionally be present other than the elements specifically identified within the list of elements to which the phrase “at least one” refers, whether related or unrelated to those elements specifically identified. Thus, as a non-limiting example, “at least one of A and B” (or, equivalently, “at least one of A or B,” or, equivalently “at least one of A and/or B”) may refer, in one embodiment, to at least one, optionally including more than one, A, with no B present (and optionally including elements other than B); in another embodiment, to at least one, optionally including more than one, B, with no A present (and optionally including elements other than A); in yet another embodiment, to at least one, optionally including more than one, A, and at least one, optionally including more than one, B (and optionally including other elements); etc.
While the present teachings have been described in conjunction with various embodiments and examples, it is not intended that the present teachings be limited to such embodiments or examples. On the contrary, the present teachings encompass various alternatives, modifications, and equivalents, as will be appreciated by those of skill in the art.
While various inventive embodiments have been described and illustrated herein, those of ordinary skill in the art will readily envision a variety of other means and/or structures for performing the function and/or obtaining the results and/or one or more of the advantages described herein, and each of such variations and/or modifications is deemed to be within the scope of the inventive embodiments described herein. More generally, those skilled in the art will readily appreciate that all parameters, dimensions, materials, and configurations described herein are meant to be exemplary and that the actual parameters, dimensions, materials, and/or configurations will depend upon the specific application or applications for which the inventive teachings is/are used. Those skilled in the art will recognize many equivalents to the specific inventive embodiments described herein. It is, therefore, to be understood that the foregoing embodiments are presented by way of example only and that, within the scope of the appended claims and equivalents thereto, inventive embodiments may be practiced otherwise than as specifically described and claimed. Inventive embodiments of the present disclosure are directed to each individual feature, system, article, material, kit, and/or method described herein. In addition, any combination of two or more such features, systems, articles, materials, kits, and/or methods, if such features, systems, articles, materials, kits, and/or methods are not mutually inconsistent, is included within the inventive scope of the present disclosure.
The claims should not be read as limited to the described order or elements unless stated to that effect. It should be understood that various changes in form and detail may be made by one of ordinary skill in the art without departing from the spirit and scope of the appended claims. All embodiments that come within the spirit and scope of the following claims and equivalents thereto are claimed.
Exemplary Embodiment No. 1. A compound of Formula I:
T-L-C(I),
or a pharmaceutically acceptable salt, solvate, or stereoisomer thereof, wherein: C is of Formula I-1
wherein:
hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-4 carbocyclyl, or 3- to 4-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru, and one of RB1, RB2, RB3, RB4, and RB5 is
or
wherein:
denotes attachment to L;
wherein:
denotes attachment to L;
wherein:
denotes attachment to L;
wherein:
denotes attachment to L; and at least one of M1, M2, M3, and M4 is N or;
wherein:
denotes attachment to L;
denotes attachment to L; and
Exemplary Embodiment No. 2. The compound of Exemplary Embodiment No. 1, wherein RXl and RB5, Rxl and RB5′, RX2 and RB5, or RX2 and RB5′, together with the atoms to which they are bonded, do not form Ring C, and RB2 or RB3 is
Exemplary Embodiment No. 3. The compound of Exemplary Embodiment No. 2, wherein C is of Formula I-1-i or I-1-ii
Exemplary Embodiment No. 4. The compound of Exemplary Embodiment No. 3, wherein C is of Formula I-1-i
Exemplary Embodiment No. 5. The compound of Exemplary Embodiment No. 1, wherein RXl and RBs, Rx1 and RB5′, RX2 and RB5, or RX2 and RB5′, together with the atoms to which they are bonded, form Ring C, wherein Ring C is optionally substituted C6 aryl or optionally substituted 5-membered heteroaryl.
Exemplary Embodiment No. 6. The compound of Exemplary Embodiment No. 5, wherein C is of Formula I-1-iii
Exemplary Embodiment No. 7. The compound of Exemplary Embodiment No. 6, wherein C is of Formula I-1-iii-1, I-1-iii-2, I-1-iii-3, or I-1-iii-4
wherein when C is of Formula I-1-iii-4, B7 is O or S.
Exemplary Embodiment No. 8. The compound of Exemplary Embodiment No. 7, wherein C is of Formula I-1-iii-1, and B7 is CRB7, and RB7 is hydrogen or C1-6 alkyl; C is of Formula I-1-iii-2, and RB7′ is hydrogen or C1-6 alkyl; or C is of Formula I-1-iii-3, and B8 is CRB8, and RB8 is hydrogen or C1-6 alkyl.
Exemplary Embodiment No. 9. The compound of Exemplary Embodiment No. 7 or 8, wherein none of B1, B3, and B4 is N and each of RB1, RB3, and RB4 is hydrogen.
Exemplary Embodiment No. 10. The compound of Exemplary Embodiment No. 5, wherein C is of Formula I-1-iv
Exemplary Embodiment No. 11. The compound of Exemplary Embodiment No. 10, wherein C is of Formula I-1-iv-1
Exemplary Embodiment No. 12. The compound of Exemplary Embodiment No. 11, wherein none of B9, B10, and B11 is N, and each of RB9, RB10, and RB11 is hydrogen.
Exemplary Embodiment No. 13. The compound of any one of Exemplary Embodiment Nos. 12, wherein none of B1, B3, and B4 is N and each of RB1, RB3, and RB4 is hydrogen.
Exemplary Embodiment No. 14. The compound of any one of Exemplary Embodiment Nos. 1-13, wherein RD1 is hydrogen.
Exemplary Embodiment No. 15. The compound of any one of Exemplary Embodiment Nos. 1-14, wherein d is 0.
Exemplary Embodiment No. 16. The compound of any one of Exemplary Embodiment Nos. 1-15, wherein q is 1.
Exemplary Embodiment No. 17. The compound of any one of Exemplary Embodiment Nos. 1-16, wherein T is of Formula I-3-i
Exemplary Embodiment No. 18. The compound of Exemplary Embodiment No. 17, wherein T is of Formula I-3-i-a
Exemplary Embodiment No. 19. The compound of Exemplary Embodiment No. 17 or 18, wherein F2 is NRF2′
Exemplary Embodiment No. 20. The compound of any one of Exemplary Embodiment Nos. 17-19, wherein RF4 is —C(═O)NR3aR3b.
Exemplary Embodiment No. 21. The compound of any one of Exemplary Embodiment Nos. 17-20, wherein F1 is C.
Exemplary Embodiment No. 22. The compound of any one of Exemplary Embodiment Nos. 17-20, wherein F1 is N.
Exemplary Embodiment No. 23. The compound of Exemplary Embodiment No. 17, wherein T is of Formula I-3-i-b
Exemplary Embodiment No. 24. The compound of any one of Exemplary Embodiment Nos. 17-23, wherein RF2′ is hydrogen or C1-6 alkyl optionally substituted with one or more Ru.
Exemplary Embodiment No. 25. The compound of any one of Exemplary Embodiment Nos. 17-24, wherein R3a and R3b are independently hydrogen or C1-6 alkyl optionally substituted with one or more R.
Exemplary Embodiment No. 26. The compound of any one of Exemplary Embodiment Nos. 17-25, wherein E1 is CRE1, and E3 is CRE3, wherein REi and RE2 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru.
Exemplary Embodiment No. 27. The compound of any one of Exemplary Embodiment Nos. 17-25, wherein one of E1 and E3 is N, wherein RE1 or RE3 is hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
Exemplary Embodiment No. 28. The compound of any one of Exemplary Embodiment Nos. 17-27, wherein REi and RE3 are independently or REi or RE2 is hydrogen, halogen, or C1-6 alkyl optionally substituted with one or more R.
Exemplary Embodiment No. 29. The compound of any one of Exemplary Embodiment Nos. 17-28, wherein RE4 is hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru.
Exemplary Embodiment No. 30. The compound of any one of Exemplary Embodiment Nos. 17-28, wherein RE4 is hydrogen, halogen, —CN, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, or —S(═O)2Ra, wherein the alkyl, alkoxy, alkylamino, carbocyclyl, or heterocyclyl is optionally substituted with one or more Ru.
Exemplary Embodiment No. 31. The compound of any one of Exemplary Embodiment Nos. 17-30, wherein F3 is CRF3, wherein RF3 is hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
Exemplary Embodiment No. 32. The compound of Exemplary Embodiment No. 31, wherein RF3 is hydrogen.
Exemplary Embodiment No. 33. The compound of any one of Exemplary Embodiment Nos. 17-32, wherein F3 is N.
Exemplary Embodiment No. 34. The compound of any one of Exemplary Embodiment Nos. 1-16, wherein T is of Formula I-3-ii
Exemplary Embodiment No. 35. The compound of Exemplary Embodiment No. 34, wherein T is of Formula I-3-ii-a
Exemplary Embodiment No. 36. The compound of Exemplary Embodiment No. 34 or 35, wherein G1 is CRG1, and G3 is CRG3, wherein RGl and RG3 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru.
Exemplary Embodiment No. 37. The compound of Exemplary Embodiment No. 36, wherein each of RGl and RG3 is hydrogen.
Exemplary Embodiment No. 38. The compound of any one of Exemplary Embodiment Nos. 34-37, wherein RG4 is hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru.
Exemplary Embodiment No. 39. The compound of Exemplary Embodiment No. 38, wherein RG4 is hydrogen, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, or 3- to 12-membered heterocyclyl, wherein the alkyl, alkoxy, alkylamino, alkenyl, or heterocyclyl is optionally substituted with one or more R.
Exemplary Embodiment No. 40. The compound of any one of Exemplary Embodiment Nos. 34-39, wherein H1 is NRH11′, and H2 is NRH2′, wherein RH11′ and RH2′ are independently C1-6 alkyl.
Exemplary Embodiment No. 41. The compound of any one of Exemplary Embodiment Nos. 1-16, wherein T is of Formula I-3-iii
Exemplary Embodiment No. 42. The compound of Exemplary Embodiment No. 41, wherein I is NRI1; and I2 is NRI2′, wherein RI1 and RI2′ are independently hydrogen or C1-6 alkyl.
Exemplary Embodiment No. 43. The compound of Exemplary Embodiment No. 41 or 42, wherein at least one R1 is C1-6 alkyl.
Exemplary Embodiment No. 44. The compound of Exemplary Embodiment No. 41, wherein T is of Formula I-3-iii-a
Exemplary Embodiment No. 45. The compound of any one of Exemplary Embodiment Nos. 41-44, wherein each R1 is independently oxo, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
Exemplary Embodiment No. 46. The compound of any one of Exemplary Embodiment Nos. 41-45, wherein i is 0 or 1.
Exemplary Embodiment No. 47. The compound of any one of Exemplary Embodiment Nos. 41-46, wherein RJ3 is hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, 5- to 10-membered heteroaryl, or or —C(═O)NRcRd, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
Exemplary Embodiment No. 48. The compound of Exemplary Embodiment No. 47, wherein RJ3 is hydrogen, halogen, C1-6 alkyl, 3- to 12-membered heterocyclyl, 5- to 10-membered heteroaryl, or —C(═O)NRcRd, wherein the alkyl, heterocyclyl, or heteroaryl is optionally substituted with one or more R.
Exemplary Embodiment No. 49. The compound of any one of Exemplary Embodiment Nos. 41-48, wherein J1 is CR1, and J2 is CRJ2, wherein RJ1 and RJ2 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru.
Exemplary Embodiment No. 50. The compound of Exemplary Embodiment No. 49, wherein RJ1 and RJ2 are independently hydrogen or C1-6 alkyl.
Exemplary Embodiment No. 51. The compound of any one of Exemplary Embodiment Nos. 41-48, wherein one of J1 and J2 is N, wherein RJ1 or RJ2 is hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
Exemplary Embodiment No. 52. The compound of any one of Exemplary Embodiment Nos. 1-16, wherein T is of Formula I-3-iv
Exemplary Embodiment No. 53. The compound of Exemplary Embodiment No. 52, wherein T is of Formula I-3-iv-a
Exemplary Embodiment No. 54. The compound of Exemplary Embodiment No. 52 or 53, wherein Ki is —C(═O)—.
Exemplary Embodiment No. 55. The compound of Exemplary Embodiment No. 52 or 53, wherein K1 is —CH2—.
Exemplary Embodiment No. 56. The compound of any one of Exemplary Embodiment Nos. 52-55, wherein at least two of M1, M3, and M4 are N.
Exemplary Embodiment No. 57. The compound of any one of Exemplary Embodiment Nos. 52-55, wherein at least one of M1, M3, and M4 is N.
Exemplary Embodiment No. 58. The compound of any one of Exemplary Embodiment Nos. 52-57, wherein M3 is N.
Exemplary Embodiment No. 59. The compound of any one of Exemplary Embodiment Nos. 52-57, wherein M3 is CRM3, wherein RM3 is hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
Exemplary Embodiment No. 60. The compound of Exemplary Embodiment No. 59, wherein RM3 is hydrogen.
Exemplary Embodiment No. 61. The compound of any one of Exemplary Embodiment Nos. 52-60, wherein each RK is independently oxo, hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
Exemplary Embodiment No. 62. The compound of any one of Exemplary Embodiment Nos. 52-61, wherein k is an integer selected from 0 to 2.
Exemplary Embodiment No. 63. The compound of Exemplary Embodiment No. 52, wherein T is of Formula I-3-iv-b
Exemplary Embodiment No. 64. The compound of any one of Exemplary Embodiment Nos. 52-63 wherein each RK is independently hydrogen, or C1-6 alkyl.
Exemplary Embodiment No. 65. The compound of any one of Exemplary Embodiment Nos. 52-64, wherein RK′ is hydrogen or C1-6 alkyl.
Exemplary Embodiment No. 66. The compound of any one of Exemplary Embodiment Nos. 52-65, wherein RM2 is hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru.
Exemplary Embodiment No. 67. The compound of Exemplary Embodiment No. 66, wherein RM2 is C1-6 alkyl, C1-6 alkoxy, or 3- to 12-membered heterocyclyl.
Exemplary Embodiment No. 68. The compound of any one of Exemplary Embodiment Nos. 1-16, wherein T is of Formula I-3-v
Exemplary Embodiment No. 69. The compound of Exemplary Embodiment No. 68, wherein T is of Formula I-3-v-a
Exemplary Embodiment No. 70. The compound of Exemplary Embodiment No. 68 or 69, wherein each RN is independently oxo, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru.
Exemplary Embodiment No. 71. The compound of any one of Exemplary Embodiment Nos. 68-70, wherein n is 0
Exemplary Embodiment No. 72. The compound of any one of Exemplary Embodiment Nos. 68-71, wherein R4 is C1-6 alkyl or C1-6 alkylamino.
Exemplary Embodiment No. 73. The compound of any one of Exemplary Embodiment Nos. 68-72, wherein RP3 is hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, 5- to 10-membered heteroaryl, or —C(═O)NRcRd, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more R.
Exemplary Embodiment No. 74. The compound of Exemplary Embodiment No. 73, wherein RP3 is hydrogen, C1-6 alkyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, or —C(═O)NRcRd.
Exemplary Embodiment No. 75. The compound of any one of Exemplary Embodiment Nos. 1-16, wherein T is of Formula I-3-vi
Exemplary Embodiment No. 76. The compound of Exemplary Embodiment No. 75, wherein T is of Formula I-3-vi-a or I-3-vi-b
Exemplary Embodiment No. 77. The compound of Exemplary Embodiment No. 75 or 76, wherein RS2 is hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru.
Exemplary Embodiment No. 78. The compound of Exemplary Embodiment No. 77, wherein RS2 is hydrogen, C1-6 alkyl, C1-6 alkoxy, or 3-12-membered heterocyclyl.
Exemplary Embodiment No. 79. The compound of any one of Exemplary Embodiment Nos. 75-78, wherein RS4 is hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru.
Exemplary Embodiment No. 80. The compound of Exemplary Embodiment No. 79, wherein RS4 is hydrogen or C1-6 alkyl.
Exemplary Embodiment No. 81. The compound of any one of Exemplary Embodiment Nos. 75-80, wherein Q1 is NR1′, wherein RQ1′ is hydrogen or C1-6 alkyl.
Exemplary Embodiment No. 82. The compound of any one of Exemplary Embodiment Nos. 75-81, wherein-I is a double bond, and Q2 is N or CRQ2 and Q3 is CRQ3, wherein RQ2 and RQ3 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-4 carbocyclyl, or 3- to 4-membered heterocyclyl.
Exemplary Embodiment No. 83. The compound of Exemplary Embodiment No. 82, wherein RQ2 and RQ3 are independently hydrogen or C1-6 alkyl.
Exemplary Embodiment No. 84. The compound of any one of Exemplary Embodiment Nos. 75-81, wherein is a single bond, then Q2 is C(RQ2)2 and Q3 is NRQ3′ or C(RQ3)2, wherein each RQ2 and RQ3 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C3-4 carbocyclyl, or 3- to 4-membered heterocyclyl; and R Q3′ ″hydrogen, C1-6 alkyl, C3-4 carbocyclyl, or 3- to 4-membered heterocyclyl.
Exemplary Embodiment No. 85. The compound of Exemplary Embodiment No. 84, wherein each RQ2 is hydrogen or C1-6 alkyl, and RQ3′ is C1-6 alkyl, and each RQ2 and RQ3 are independently hydrogen or C1-6 alkyl.
Exemplary Embodiment No. 86. The compound of any one of Exemplary Embodiment Nos. 75-85, wherein S1 is CRS1, and S3 is CRS3, wherein Rsi and RS3 are independently hydrogen, halogen, —CN, —NO2, —OH, —NH2, C1-6 alkyl, C1-6 alkoxy, C1-6 alkylamino, C2-6 alkenyl, C2-6 alkynyl, C3-12 carbocyclyl, 3- to 12-membered heterocyclyl, C6-10 aryl, or 5- to 10-membered heteroaryl, wherein the alkyl, alkoxy, alkylamino, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more Ru.
Exemplary Embodiment No. 87. The compound of Exemplary Embodiment No. 86, wherein each of Rsi and RS3 is hydrogen.
Exemplary Embodiment No. 88. The compound of any one of Exemplary Embodiment Nos. 1-87, wherein L″ is absent.
Exemplary Embodiment No. 89. The compound of any one of Exemplary Embodiment Nos. 1-88, wherein Cy1 is
Exemplary Embodiment No. 90. The compound of Exemplary Embodiment No. 89, wherein V1 is N.
Exemplary Embodiment No. 91. The compound of Exemplary Embodiment No. 89 or 90, wherein T1 is CRTi and V2 is CRV2, wherein RTi and RV2 are hydrogen.
Exemplary Embodiment No. 92. The compound of Exemplary Embodiment No. 89, wherein Cy1 is
Exemplary Embodiment No. 93. The compound of Exemplary Embodiment No. 92, wherein at least one RT is C1-6 alkyl.
Exemplary Embodiment No. 94. The compound of Exemplary Embodiment No. 92 or 93, wherein t is 0 or 1.
Exemplary Embodiment No. 95. The compound of any one of Exemplary Embodiment Nos. 1-88, wherein Cy1 is
Exemplary Embodiment No. 96. The compound of Exemplary Embodiment No. 95, wherein Y1 is N.
Exemplary Embodiment No. 97. The compound of Exemplary Embodiment No. 95 or 96, wherein Y2 is CH2 or O.
Exemplary Embodiment No. 98. The compound of any one of Exemplary Embodiment Nos. 95-97, wherein Z1 is CRZi
Exemplary Embodiment No. 99. The compound of Exemplary Embodiment No. 95, wherein Cy1 is
wherein RZ1 is C1-6 alkyl substituted with one or more halogen.
Exemplary Embodiment No. 100. The compound of any one of Exemplary Embodiment Nos. 95-99, wherein RZ1 is hydrogen or halogen.
Exemplary Embodiment No. 101. The compound of any one of Exemplary Embodiment Nos. 95-97, wherein Z1 is N.
Exemplary Embodiment No. 102. The compound of any one of Exemplary Embodiment Nos. 95-101, wherein at least one RZ is oxo.
Exemplary Embodiment No. 103. The compound of any one of Exemplary Embodiment Nos. 95-102, wherein z is 0 or 1.
Exemplary Embodiment No. 104. The compound of any one of Exemplary Embodiment Nos. 1-103, wherein L″ is C1-3 alkylene, —C(═O)—, —C(═O)N(RL)—, —C(═O)O—, —N(RL), —O—, —S—, or —S(═O)2—, wherein the alkylene is optionally substituted with one or more R.
Exemplary Embodiment No. 105. The compound of Exemplary Embodiment No. 104, wherein Cy1 is
Exemplary Embodiment No. 106. The compound of Exemplary Embodiment No. 105, wherein V′1 is CRV′1, wherein RV′1 is hydrogen, halogen, C1-6 alkyl, or C1-6 haloalkyl.
Exemplary Embodiment No. 107. The compound of Exemplary Embodiment No. 104 or 105, wherein each RV′ is independently halogen, C1-6 alkyl, or C1-6 haloalkyl, and v′ is 0 or 1.
Exemplary Embodiment No. 108. The compound of any one of Exemplary Embodiment Nos. 1-107, wherein Cy2 is pyridinylene optionally substituted with one or more halogen, C1-6 alkyl, or C1-6 alkoxy.
Exemplary Embodiment No. 109. The compound of Exemplary Embodiment No. 108, wherein Cy2 is
wherein ##denotes attachment to Cy1.
Exemplary Embodiment No. 110. The compound of any one of Exemplary Embodiment Nos. 1-109, wherein L2 is CH2.
Exemplary Embodiment No. 111. The compound of any one of Exemplary Embodiment Nos. 1-110, wherein L3 is 1,4-phenylene, ethynylene or E-ethylene.
Exemplary Embodiment No. 112. A compound selected from the compounds in Tables 1 and 2 or a pharmaceutically acceptable salt thereof.
Exemplary Embodiment No. 113. A pharmaceutical composition comprising the compound of any one of Exemplary Embodiment Nos. 1-112, and a pharmaceutically acceptable excipient.
Exemplary Embodiment No. 114. A method of degrading a protein in a subject or biological sample comprising administering the compound of any one of Exemplary Embodiment Nos. 1-112 to the subject or contacting the biological sample with the compound of any one of Exemplary Embodiment Nos. 1-112.
Exemplary Embodiment No. 115. Use of the compound of any one of Exemplary Embodiment Nos. 1-112 in the manufacture of a medicament for degrading a protein in a subject or biological sample.
Exemplary Embodiment No. 116. A compound of any one of Exemplary Embodiment Nos. 1-112 for use in degrading a protein in a subject or biological sample.
Exemplary Embodiment No. 117. The method, use, or compound for use of any one of Exemplary Embodiment Nos. 114-116, wherein the protein is p300 or CBP.
Exemplary Embodiment No. 118. A method of treating a p300-mediated disorder comprising administering to a patient in need thereof a compound of any one of Exemplary Embodiment Nos. 1-112.
Exemplary Embodiment No. 119. Use of a compound of any one of Exemplary Embodiment Nos. 1-112 in the manufacture of a medicament for treating a p300-mediated disorder.
Exemplary Embodiment No. 120. A compound of any one of Exemplary Embodiment Nos. 1-112 for use in treating a p300-mediated disorder.
Exemplary Embodiment No. 121. The method, use, or compound for use of any one of Exemplary Embodiment Nos. 118-120, wherein the p300-mediated disorder is cancer, an inflammatory disorder, or an autoimmune disease.
In order that the invention described herein may be more fully understood, the following examples are set forth. The examples described in this application are offered to illustrate the compounds, pharmaceutical compositions, and methods provided herein and are not to be construed in any way as limiting their scope.
In the following examples, the chemical reagents were purchased from commercial sources (such as Alfa, Acros, Sigma Aldrich, TCI and Shanghai Chemical Reagent Company), and used without further purification.
In obtaining the compounds described in the examples below and the corresponding analytical data, the following experimental and analytical protocols were followed unless otherwise indicated.
Unless otherwise stated, reaction mixtures were magnetically stirred at room temperature (rt) under a nitrogen atmosphere. Where solutions were “dried,” they were generally dried over a drying agent such as Na2SO4 or MgSO4. Where mixtures, solutions, and extracts were “concentrated”, they were typically concentrated on a rotary evaporator under reduced pressure.
Compound purification was carried out as needed using a variety of traditional methods including, but not limited to, preparative chromatography under acidic, neutral, or basic conditions using either normal phase or reverse phase HPLC or flash columns or Prep-TLC plates.
Flash chromatography was performed on a Biotage Isolera One via column with silica gel particles of 100-200 mesh or 200-300 mesh. Analytical and preparative thin-layer chromatography was performed using silica gel 60 GF254 plates. Normal-phase silica gel chromatography (FCC) was also performed on silica gel (SiO2) using prepacked cartridges.
Preparative reverse-phase high performance liquid chromatography (RP HPLC) was performed on either:
Prep-HPLC with YMC-Actus Triart 18C (5 μm, 20×250 mm), and mobile phase of 5-99% ACN in water (0.1% HCOOH) over 10 min and then hold at 100% ACN for 2 min, at a flow rate of 25 mL/min; or
Preparative supercritical fluid high performance liquid chromatography (SFC) was performed either on a Thar 80 Prep-SFC system, or Waters 80Q Prep-SFC system from Waters. The ABPR was set to 100 bar to keep the CO2 in SF conditions, and the flow rate may verify according to the compound characteristics, with a flow rate ranging from 50 g/min to 70 g/min. The column temperature was ambient temperature.
Nuclear magnetic resonance (NMR) spectra were recorded using Brucker AVANCE NEO 400 MHz at around 20-30° C. unless otherwise specified. The following abbreviations are used: s, singlet; d, doublet; t, triplet; q, quartet; m, multiplet; dd, doublet of doublets; ddd, doublet of doublet of doublets; dt, doublet of triplets; bs, broad signal. Chemical shifts were reported in parts per million (ppm, 6) downfield from tetramethylsilane. It will be understood that for compounds comprising an exchangeable proton, said proton may or may not be visible on an NMR spectrum depending on the choice of solvent used for running the NMR spectrum and the concentration of the compound in the solution.
Mass spectra (MS) were obtained on a SHIMADZU LCMS-2020 MSD using electrospray ionization (ESI) in positive mode unless otherwise indicated. Calculated (calcd.) mass corresponds to the exact mass.
Chemical names were generated using ChemDraw Ultra 12.0, ChemDraw Ultra 14.0, ChemDraw Ultra 20.0 (CambridgeSoft Corp., Cambridge, MA) or ACD/Name Version 10.01 (Advanced Chemistry).
Compounds designated as R* or S* are enantiopure compounds where the absolute configuration was not determined.
A solution of (2-bromophenyl)methanamine (100 g, 537.6 mmol) in methyl 2,2-dimethoxyacetate (108 g, 806.4 mmol) was stirred at 80° C. for 2 hours in a sealed tube. The suspension was filtered, and the filter cake was washed with EtOAc. The combined filtrates were concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (0-10% EtOAc in PE) to afford N-(2-bromobenzyl)-2,2-dimethoxyacetamide (110 g, 71% yield) as a white solid.
LC-MS (ESI): mass calcd. for C11H14BrNO3: 287.0/289.0; m/z found: 288.0/290.0 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 8.51 (t, J=5.8 Hz, 1H), 7.60 (dd, J=7.9, 0.8 Hz, 1H), 7.40-7.34 (m, 1H), 7.25-7.18 (m, 2H), 4.75 (s, 1H), 4.31 (d, J=6.1 Hz, 2H), 3.33 (s, 6H).
A solution of N-(2-bromobenzyl)-2,2-dimethoxyacetamide (110 g, 383.3 mmol) in H2SO4 (100 mL) was stirred at 100° C. for 4 hours. LCMS showed the reaction was complete. The resulting solution was added dropwise into ice water and basified with sat. NaHCO3to pH=7. The suspension was filtered, the filter cake was washed with water and dried under vacuum to give 8-bromoisoquinolin-3-ol (60 g, 70% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C9H6BrNO: 223.0/225.0; m/z found: 224/226 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 9.02 (s, 1H), 7.75 (d, J=8.5 Hz, 1H), 7.62 (d, J=0.4 Hz, 1H), 7.49-7.43 (m, 1H), 6.97 (s, 1H).
To a solution of 8-bromoisoquinolin-3-ol (60 g, 269.0 mmol) in DCM (200 mL) was added TEA (56 mL, 403.6 mmol), followed by Tf20 (54 mL, 322.8 mmol) at 0° C. under N2. The mixture was stirred at room temperature for 3 hours. The reaction mixture was slowly poured into ice water (300 mL) and extracted with DCM (200 mL×3). The combined organic layers were washed with brine (200 mL×3), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (0-10%EtOAc in PE) to give 8-bromoisoquinolin-3-yl trifluoromethanesulfonate (35 g, 37% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C10H5BrF3NO3S: 354.9/356.9; m/z found: 355.9/357.9 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 9.36 (s, 1H), 8.25 (s, 1H), 8.18 (d, J=8.0 Hz, 1H), 8.13 (d, J=8.0 Hz, 1H), 7.82 (t, J=8.0 Hz, 1H).
A mixture of 8-bromoisoquinolin-3-yl trifluoromethanesulfonate (6.0 g, 16.9 mmol), methyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate (4.9 g, 18.6 mmol), Pd(dppf)Cl2 (1.2 g, 1.7 mmol), and K3PO4 (7.2 g, 33.8 mmol) in DMF (200 mL) was stirred at 70° C. under N2 overnight. The mixture was poured into EtOAc (800 mL) and filtered. The filter cake was washed with EtOAc. The combined filtrates were washed with brine (200 mL×3), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (0-10% EtOAc in DCM) to give methyl 5-(8-bromoisoquinolin-3-yl)picolinate (3.0 g, 52% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C16H11BrN2O2: 342.0/344.0; m/z found: 343.0/345.0 [M+H]+.
A mixture of methyl 5-(8-bromoisoquinolin-3-yl)picolinate (3.0 g, 8.8 mmol), 4,4,4′,4′,5,5,5′,5′-octamethyl-2,2′-bi(1,3,2-dioxaborolane) (4.5 g, 17.6 mmol), Pd(dppf)Cl2 (652 mg, 0.9 mmol), and AcOK (2.6 g, 26.4 mmol) in 1,4-dioxane (60 mL) was stirred at 100° C. under N2 for 3 hours. The mixture was filtered, and the filter cake was washed with EtOAc. The combined filtrates were concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (0-10% EtOAc in DCM) to give methyl 5-(8-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoquinolin-3-yl)picolinate (2.2 g, 65% yield) as a brown solid.
LC-MS (ESI): mass calcd. for C22H23BN2O4: 390.2; m/z found: 391.2 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.09 (s, 1H), 9.57 (d, J=1.6 Hz, 1H), 8.78 (dd, J=8.2, 2.3 Hz, 1H), 8.72 (s, 1H), 8.24-8.18 (m, 2H), 8.14 (dd, J=6.9, 1.2 Hz, 1H), 7.87 (dd, J=8.2, 6.9 Hz, 1H), 3.94 (s, 3H), 1.43 (s, 12H).
To a mixture of 6-bromo-4-iodo-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (1.7 g, 4.6 mmol, 1.0 eq.), 4,4,5,5-tetramethyl-2-(prop-1-en-2-yl)-1,3,2-dioxaborolane (924 mg, 5.5 mmol, 1.2 eq.) and Pd(dppf)Cl2 (333 mg, 460 μmol, 0.1 eq.) in 1,4-dioxane (20 mL) and H2O (2 mL) was added Cs2CO3 (4.5 g, 13.8 mmol, 3.0 eq.). The mixture was stirred at 90° C. for 2 hours under N2. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (3×40 mL). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (0-30% EtOAc in PE) to give 6-bromo-1,3-dimethyl-4-(prop-1-en-2-yl)-1,3-dihydro-2H-benzo[d]imidazol-2-one (965 mg, 76% yield) as a white solid.
LC-MS (ESI): mass calcd. for C12H13BrN2O: 280/282; m/z found: 281/283 [M+H]+.
A mixture of 6-bromo-1,3-dimethyl-4-(prop-1-en-2-yl)-1,3-dihydro-2H-benzo[d]imidazol-2-one (965 mg, 3.4 mmol) and Wilkinson's catalyst (193 mg, 209 μmol) in EtOH (15 mL) was stirred at 60° C. for 3 hours under H2 atmosphere. The resulting solution was concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (0-30% EtOAc in PE) to give 6-bromo-4-isopropyl-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (811 mg, 83% yield) as a white solid.
LC-MS (ESI): mass calcd. for C12H15BrN2O: 282/284; m/z found: 283/285 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 7.25 (d, J=1.9 Hz, 1H), 7.10 (d, J=1.9 Hz, 1H), 3.63-3.59 (m, 1H), 3.54 (s, 3H), 3.30 (s, 3H), 1.25 (d, J=6.8 Hz, 6H).
To solution of 6-bromo-4-isopropyl-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (90.0 mg, 318 μmol, 1.0 eq.) in 1,4-dioxane (10 mL) and water (1 mL) was added methyl 5-(8-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoquinolin-3-yl)picolinate (149 mg, 381 μmol, 1.2 eq., Intermediate 1), K2CO3 (132 mg, 953 μmol, 3.0 eq.) and Pd(dppf)Cl2 (23.3 mg, 31.8 μmol, 0.1 eq.). The reaction mixture was stirred for 2 hours at 95° C. The reaction was concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (0-50% EtOAc in PE) to give methyl 5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinate (110 mg, 74% yield) as a white solid.
LC-MS (ESI): mass calcd. for C28H26N4O3: 466.2; m/z found: 467.2 [M+H]+.
To solution of methyl 5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinate (30 mg, 64.3 μmol, 1.0 eq.) in THF (3 mL) and water (3 mL) was added LiGH (3 mg, 129 μmol, 2.0 eq.). The reaction mixture was stirred at room temperature for 1 hour and concentrated under reduced pressure to give lithium 5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinate as a lithium salt.
LC-MS (ESI): mass calcd. for C27H24N4O3: 452.2; m/z found: 453.2 [M+H]+.
A mixture of methyl 5-(7-(difluoromethyl)-1,2,3,4-tetrahydroquinolin-6-yl)picolinate (150 mg, 471 μmol, 1.0 eq.; Intermediate 5), 6-bromo-4-isopropyl-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (147 mg, 518 μmol, 1.1 eq.; Intermediate 2, Step B), RuPhos Pd G1 (103 mg, 141 μmol, 0.3 eq.), RuPhos (144 mg, 283 μmol, 0.6 eq.) and Cs2CO3 (461 mg, 1.4 mmol, 3.0 eq.) in 1,4-dioxane (5 mL) was stirred at 100° C. for 3 hours under N2. The resulting solution was diluted with 40 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (0-80% EtOAc in PE) to give methyl 5-(7-(difluoromethyl)-1-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-1,2,3,4-tetrahydroquinolin-6-yl)picolinate (100 mg, 41% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C29H30F2N4O3: 520.2; m/z found: 521 [M+H]+.
To a solution of methyl 5-(7-(difluoromethyl)-1-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-1,2,3,4-tetrahydroquinolin-6-yl)picolinate (150 mg, 288 μmol, 1 eq.) in THF (2 mL) and H2O(2 mL) was added LiGH (8 mg, 288 μmol, 1.2 eq.) at 25° C.
The mixture was stirred at 25° C. for 30 mins. The reaction solution was removed under reduced pressure to give lithium 5-(7-(difluoromethyl)-1-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-1,2,3,4-tetrahydroquinolin-6-yl)picolinate (145 mg, crude) as a yellow solid.
LC-MS (ESI): mass calcd. for C28H28F2N4O3: 506.2; m/z found: 507 [M+H]+.
To a mixture of 7-bromo-5-methoxy-1,3-dimethylquinolin-2(1H)-one (3.5 g, 12.4 mmol, 1.0 eq.), potassium trifluoro(vinyl)borate (8.3 g, 62.0 mmol, 5.0 eq.), and Pd(dppf)Cl2 (1.8 g, 2.5 mmol, 0.2 eq.) in 1,4-dioxane (20 mL) and H2O(2 mL) was added Na2CO3 (3.9 g, 37.2 mmol, 3.0 eq.). The mixture was then stirred at 100° C. for 40 min under N2. The resulting solution was diluted with 100 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by silica gel chromatography (100-200 mesh silica gel, 0-20% EtOAc in PE) to give 5-methoxy-1,3-dimethyl-7-vinylquinolin-2(1H)-one (2.5 g, 88% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C14H15NO2, 229.1; m/z found, 230.1 [M+H]+.
To a solution of 5-methoxy-1,3-dimethyl-7-vinylquinolin-2(1H)-one (2.5 g, 10.9 mmol, 1.0 eq.) in EtOH (100 mL) was added Pd/C (1.21 g, wt=10%) at room temperature. The mixture was purged with H2 three times and stirred at room temperature for 2 hours. The resulting solution was filtered and concentrated under reduced pressure to give 7-ethyl-5-methoxy-1,3-dimethylquinolin-2(1H)-one (2.5 g, crude) as a yellow solid.
LC-MS (ESI): mass calcd. for C14H17NO2, 231.1; m/z found, 232.1 [M+H]+.
To mixture of 7-ethyl-5-methoxy-1,3-dimethylquinolin-2(1H)-one (2.5 g, 10.8 mmol, 1.0 eq.) in DMF (100 mL) was added EtSNa (9.1 g, 108 mmol, 10 eq.). The mixture was stirred at 110° C. for 16 hours. The resulting solution was diluted with 100 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (30 mL×3), dried over Na2SO4, and concentrated under reduced pressure to give 7-ethyl-5-hydroxy-1,3-dimethylquinolin-2(1H)-one (2.3 g, crude) as a yellow solid.
LC-MS (ESI): mass calcd. for C13H15NO2, 217.1; m/z found, 218.1 [M+H]+.
A solution of 7-ethyl-5-hydroxy-1,3-dimethylquinolin-2(1H)-one (2.3 g, 9.9 mmol, 1.0 eq.) and pyridine (2.5 mL, 29.8 mmol, 3.0 eq.) in DCM (30 mL) was stirred at 0° C. Then, Tf2O (3.4 mL, 19.9 mmol, 2.0 eq.) was added dropwise and the mixture was stirred at 0° C. for 1 hour. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (30 mL×3). The combined organic layers were washed with brine (20 mL×3), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by silica gel chromatography (100-200 mesh silica gel, 0-40% EtOAc in PE) to give 7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl trifluoromethanesulfonate (1.3 g, 35% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C14H14F3NO4S, 349.1; m/z found, 350.2 [M+H]+.
To a mixture of 7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl trifluoromethanesulfonate (500 mg, 1.4 mmol, 1.0 eq.) and methyl 5-(8-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoquinolin-3-yl)picolinate (614 mg, 1.6 mmol, 1.1 eq.; Intermediate 1) in 1,4-dioxane (16 mL) and H2O(0.8 mL) was added K2CO3 (593 mg, 4.3 mmol, 3.0 eq.) and X-Phos Pd G2 (113 mg, 143 μmol, 0.1 eq.) at 25° C. The mixture was stirred at 90° C. for 3 hours under N2. The resulting solution was diluted with 20 mL of water and extracted with EtOAc (30 mL×3). The combined organic layers were washed with brine (20 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by silica gel chromatography (100-200 mesh silica gel, 0-10% MeOH in DCM) to give methyl 5-(8-(7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)isoquinolin-3-yl)picolinate (420 mg, 63% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C29H25N3O3, 463.2; m/z found, 464.1 [M+H]+.
To a solution of methyl 5-(8-(7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)isoquinolin-3-yl)picolinate (420 mg, 0.9 mmol, 1.0 eq.) in THF (6 mL) and H2O(3 mL) was added LiGH (22 mg, 0.9 mmol, 1.0 eq.) at room temperature. The mixture was stirred at room temperature for 1 hour. Then the mixture was concentrated under reduced pressure to give lithium 5-(8-(7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)isoquinolin-3-yl)picolinate (380 mg, crude) as a white solid.
LC-MS (ESI): mass calcd. for C28H23N3O3, 449.2; m/z found, 450.5 [M+H]+.
To a mixture of 7-methylquinoline (25 g, 175 mmol) was added SeO2 (38.7 g, 349.2 mmol) in portions over 5 min at room temperature. The mixture was stirred at 160° C. for 3 hours under N2 atmosphere. The cooled mixture was diluted with DCM (200 mL) and filtered. The filtrate was concentrated under reduced pressure. The residue was purified by flash chromatography (0-10%EtOAc in PE) to give quinoline-7-carbaldehyde (13 g, 47% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C10H7NO: 157; m/z found: 158 [M+H]+.
To a stirred mixture of quinoline-7-carbaldehyde (5 g, 31.8 mmol) in DCM (10 mL) was added DAST (12.6 mL, 95.4 mmol) dropwise at −20° C. The reaction mixture was stirred overnight at room temperature. The mixture was poured into aq. NaHCO3at 0° C. and extracted with DCM (30 mL×3). The combined organic layers were washed with brine, dried over anhydrous Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (0-10% EtOAc in PE) to give 7-(difluoromethyl)quinoline (3.6 g, 63% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C10H7F2N: 179; m/z found: 180 [M+H]+.
To a solution of 7-(difluoromethyl)quinoline (5 g, 27.9 mmol) and NaBH3CN (9.0 g, 140 mmol) in MeOH (100 mL) was added BF3-Et20 (6.9 mL, 55.8 mmol) dropwise at 0° C. The reaction mixture was stirred overnight at 90° C. under N2 atmosphere. The mixture was poured into saturated aq. NaHCO3 (50 mL) and extracted with DCM (30 mL×3). The combined organic layers were washed with brine, dried over anhydrous Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (0-10% EtOAc in PE) to give 7-(difluoromethyl)-1,2,3,4-tetrahydroquinoline (3.6 g, 69% yield) as a brown oil.
LC-MS (ESI): mass calcd. for C10H11F2N: 183; m/z found: 184 [M+H]+.
To a stirred mixture of 7-(difluoromethyl)-1,2,3,4-tetrahydroquinoline (1 g, 5.40 mmol) in DCM (50 mL) was added NBS (860 mg, 4.85 mmol) at 0° C. The reaction mixture was stirred at 0° C. for 30 mins under N2 atmosphere. The mixture was diluted with water (30 mL) and extracted with DCM (20 mL×3). The combined organic layers were washed with brine, dried over anhydrous Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (0-3%EtOAc in PE) to give 6-bromo-7-(difluoromethyl)-1,2,3,4-tetrahydroquinoline (750 mg, 52% yield) as a colorless oil.
LC-MS (ESI): mass calcd. for C10H10BrF2N: 261/263; m/z found: 262/264 [M+H]+.
A mixture of 6-bromo-7-(difluoromethyl)-1,2,3,4-tetrahydroquinoline (750 mg, 2.8 mmol), methyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate (736 mg, 2.8 mmol), Pd(dppf)Cl2 (207 mg, 0.28 mmol) and K2CO3 (783 mg, 5.6 mmol) in 1,4-dioxane (20 mL) was stirred at 100° C. under N2 atmosphere for 3 hours. The cooled mixture was diluted with water (30 mL) and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine, dried over anhydrous Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (0-10% MeOH in DCM) to give methyl 5-(7-(difluoromethyl)-1,2,3,4-tetrahydroquinolin-6-yl)picolinate (400 mg, 53% yield) as a brown solid.
LC-MS (ESI): mass calcd. for C17H16F2N2O2: 318.1; m/z found: 319 [M+H]+.
A solution of 3-iodoaniline (16 g, 73.0 mmol, 1.0 eq.) in DMF (40 mL) was treated with 3-bromopiperidine-2,6-dione (18.2 g, 95.0 mmol, 1.3 eq.) and NaHCO3 (18.4 g, 219.2 mmol, 3.0 eq.) at room temperature. The mixture was stirred at 65° C. for 16 hours. The resulting solution was diluted with 200 mL of H2O and extracted with EtOAc (150 mL×3). The combined organic layers were washed with brine (200 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-45% EtOAc in PE) to give 3-((3-iodophenyl)amino)piperidine-2,6-dione (4.8 g, 20% yield) as a off-white solid.
LC-MS (ESI): mass calcd. for C11H11IN2O2, 330.0; m/z found, 331 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.78 (s, 1H), 7.03 (d, J=1.8 Hz, 1H), 6.93-6.79 (m, 2H), 6.69-6.58 (m, 1H), 6.08 (d, J=8.0 Hz, 1H), 4.41-4.26 (m, 1H), 2.81-2.68 (m, 1H), 2.60-2.52 (m, 1H), 2.10-2.02 (m, 1H), 1.95-1.80 (m, 1H).
A solution of 3-((3-iodophenyl)amino)piperidine-2,6-dione (3 g, 9.1 mmol, 1.0 eq.) in DMF (30 mL) was treated with tert-butyl prop-2-yn-1-ylcarbamate (1.7 g, 10.9 mmol, 1.2 eq.), TEA (10 mL, 72.7 mmol, 8.0 eq.), CuI (346 mg, 1.8 mmol, 0.2 eq.), and Pd(PPh3)Cl2 (1.2 g, 1.8 mmol, 0.2 eq.) at room temperature. The mixture was stirred at 100° C. under N2 for 6 hours. The resulting solution was diluted with 150 mL of H2O and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (80 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-45% EtOAc in PE) to give tert-butyl (3-(3-((2,6-dioxopiperidin-3-yl)amino)phenyl)prop-2-yn-1-yl)carbamate (1.4 g, 43% yield) as a white solid.
LC-MS (ESI): mass calcd. for C19H23N3O4, 357.2; m/z found, 302.4 [M+H-tBu]+.
1H NMR (400 MHz, DMSO-d6) δ 10.78 (s, 1H), 7.36-7.25 (m, 1H), 7.09-7.02 (m, 1H), 6.70-6.58 (m, 3H), 6.00 (d, J=7.9 Hz, 1H), 4.42-4.33 (m, 1H), 3.94 (d, J=5.6 Hz, 2H), 2.79-2.69 (m, 1H), 2.60-2.54 (m, 1H), 2.11-2.02 (m, 1H), 1.92-1.81 (m, 1H), 1.40 (s, 9H).
To a solution of tert-butyl (3-(3-((2,6-dioxopiperidin-3-yl)amino)phenyl)prop-2-yn-1-yl)carbamate (1.4 g, 3.9 mmol, 1.0 eq.) in MeCN (20 mL) was added HCl (4 mL, 4 M in dioxane) and stirred at room temperature for 1 hour. The resulting solution was concentrated under reduced pressure to give 3-((3-(3-aminoprop-1-yn-1-yl)phenyl)amino)piperidine-2,6-dione hydrochloride (1.2 g, 89% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C14H15N3O2, 257.1; m/z found, 258.1 [M+H]+.
To a solution of 1-(4-methyl-3-nitrophenyl)ethan-1-one (5 g, 27.9 mmol, 1.0 eq.) in H2SO4 (55 mL) was added a solution of 1,3-dibromo-1,3,5-triazinane-2,4,6-trione (8 g, 27.9 mmol, 1.0 eq.) in additional H2SO4 (15 mL). The reaction was stirred at 25° C. for 16 hours. The reaction solution was slowly poured into 400 mL of ice water and extracted with EtOAc (800 mL).
The organic layer was washed with brine (200 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to give 1-(3-bromo-4-methyl-5-nitrophenyl)ethan-1-one (6 g, 83% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C9H8BrNO3, 257.0; m/z found, N/A [M+H]+.
1H NMR (400 MHz, CD30D) 6 8.41 (d, J=1.5 Hz, 1H), 8.32 (d, J=1.3 Hz, 1H), 2.62 (s, 3H), 2.58 (s, 3H).
A solution of 1-(3-bromo-4-methyl-5-nitrophenyl)ethan-1-one (3 g, 11.6 mmol, 1.0 eq.) and DAST (23 mL, 46.5 mmol, 4 eq.) in DCE (50 mL) was stirred at 50° C. for 16 hours under N2. At this point, the reaction was diluted with water (200 mL) and extracted with DCM (100 mL×3). The combined organic layers were washed with brine (50 mL×3), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to give 1-bromo-5-(1,1-difluoroethyl)-2-methyl-3-nitrobenzene (2 g, 61% yield) as a yellow oil.
No MS signal.
1H NMR (400 MHz, CD30D) 6 8.04 (s, 1H), 7.96 (s, 1H), 2.56 (s, 3H), 1.96 (t, J=18.5 Hz, 3H).
A solution of 1-bromo-5-(1,1-difluoroethyl)-2-methyl-3-nitrobenzene (3.2 g, 11.4 mmol, 1.0 eq.), 1-bromopyrrolidine-2,5-dione (2.6 g, 14.9 mmol, 1.3 eq.), and benzoperoxoic acid (158 mg, 1.14 mmol, 0.1 eq.) in CCl4 (20 mL) was stirred at 80° C. for 16 hours under N2. The reaction was concentrated under reduced pressure. The residue was purified by silica gel chromatography (100-200 mesh silica gel, 0-15% EtOAc in PE) to give 1-bromo-2-(bromomethyl)-5-(1,1-difluoroethyl)-3-nitrobenzene (4 g, 97% yield) as a yellow solid.
No MS signal.
1H NMR (400 MHz, CD30D) 6 8.15 (s, 1H), 8.11 (s, 1H), 4.89 (s, 2H), 1.98 (t, J=18.6 Hz, 3H).
To a solution of 1-bromo-2-(bromomethyl)-5-(1,1-difluoroethyl)-3-nitrobenzene (2.2 g, 6.13 mmol, 1.0 eq.) in THF (5.0 mL) was added MeNH2 (30.6 mL, 61.3 mmol, 10.0 eq., 2M in THF). The mixture was stirred at 25° C. for 16 hours under N2. The reaction was concentrated under reduced pressure. The residue was purified by silica gel chromatography (100-200 mesh silica gel, 0-50% EtOAc in PE) to give 1-(2-bromo-4-(1,1-difluoroethyl)-6-nitrophenyl)-N-methylmethanamine (1.6 g, 85% yield) as a yellow oil.
LC-MS (ESI): mass calcd. for C10H11BrF2N2O2, 308.0; m/z found, 309.0 [M+H]+.
A mixture of 1-(2-bromo-4-(1,1-difluoroethyl)-6-nitrophenyl)-N-methylmethanamine (1.4 g, 4.53 mmol, 1.0 eq.), NH4Cl (1.2 g, 22.6 mmol, 5 eq.), and iron powder (2.5 g, 45.3 mmol, 10 eq.) in EtOH (10 mL) and H2O(2 mL) was stirred at 80° C. for 2 hours under N2. The reaction was filtered, and the filtrate was concentrated in vacuo. The residue was purified by silica gel chromatography (100-200 mesh silica gel, 0-30% MeOH in DCM) to give 3-bromo-5-(1,1-difluoroethyl)-2-((methylamino)methyl)aniline (800 mg, 63% yield) as an white solid.
LC-MS (ESI): mass calcd. for C10H13BrF2N2, 278.0; m/z found, 279.0 [M+H]+.
A solution of 3-bromo-5-(1,1-difluoroethyl)-2-((methylamino)methyl)aniline (700 mg, 2.51 mmol, 1.0 eq.) and CDI (813 mg, 5.02 mmol, 2.0 eq.) in THF (10 mL) was stirred at 80° C. for 20 hours under N2. The reaction was concentrated under reduced pressure. The residue was purified by Prep-HPLC (C18, 0-70% MeCN in H2O, 0.1% FA) to give 5-bromo-7-(1,1-difluoroethyl)-3-methyl-3,4-dihydroquinazolin-2(1H)-one (700 mg, 91% yield) as a white solid.
LC-MS (ESI): mass calcd. for C11H11BrF2N2O, 304.0; m/z found, 305 [M+H]+.
A solution of 5-bromo-7-(1,1-difluoroethyl)-3-methyl-3,4-dihydroquinazolin-2(1H)-one (400 mg, 1.31 mmol, 1.0 eq.) in DMF (8 mL) was cooled to 0° C., and then treated with NaH (105 mg, 2.62 mmol, 2.0 eq., 60% wt.). The reaction was stirred at 0° C. for 30 mins under N2. At this point, Mel (127 μL, 1.97 mmol, 1.5 eq.) was added to the mixture dropwise. The mixture was then stirred at 50° C. for 1 hour. The resulting solution was diluted with 20 mL of water and extracted with EtOAc (30 mL×3). The combined organic layers were washed with brine (20 mL×3), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by silica gel chromatography (100-200 mesh silica gel, 0-100% EtOAc in PE) to give 5-bromo-7-(1,1-difluoroethyl)-1,3-dimethyl-3,4-dihydroquinazolin-2(1H)-one (350 mg, 84% yield) as a white solid.
LC-MS (ESI): mass calcd. for C12H13BrF2N2O, 318.0; m/z found, 319 [M+H]+.
To a solution of 5-bromo-7-methoxy-1,3-dimethylquinolin-2(1H)-one (20.0 g, 70.9 mmol, 1 eq.) in DCM (200 mL) was added BBr3 (55 mL, 567 mmol, 8 eq.). The mixture was stirred at 25° C. for 2 hour under N2. The resulting solution was quenched with MeOH and filtered to give 5-bromo-7-hydroxy-1,3-dimethylquinolin-2(1H)-one (18.0 g, 67.1 mmol, 95% yield) as a white solid.
LC-MS (ESI): mass calcd. for C11H10BrNO2, 267.0/269.0; m/z found, 268.1/270.1 [M+H]+.
To a mixture of 5-bromo-7-hydroxy-1,3-dimethylquinolin-2(1H)-one (16.0 g, 60 mmol, 1 eq.) and pyridine (14.5 mL, 179 mmol, 3 eq.) in DCM (160 mL) was added triflic anhydride (20 mL, 119 mmol, 2 eq.) at 0° C. under N2 atmosphere. The mixture was stirred at 0° C. for 3 hours. The resulting solution was diluted with 200 mL of water and extracted with EtOAc (200 mL×3). The combined organic layers were washed with brine (200 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-25% EtOAc in PE) to give 5-bromo-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-7-yl trifluoromethanesulfonate (19.0 g, 47.5 mmol, 80% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C12H9BrF3NO4S, 398.9/400.9; m/z found, 400/402 [M+H]+.
To a stirred mixture of 5-bromo-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-7-yl trifluoromethanesulfonate (10.0 g, 25 mmol, 1 eq.) and potassium vinyltrifluoroborate (3.8 g, 28.7 mmol, 1.15 eq.) in THF (80 mL) and water (6 mL) was added PdCl2(dppf) (1.8 g, 2.5 mmol, 0.1 eq.) and K2CO3 (10.4 g, 75 mmol, 3 eq.) at room temperature under N2 atmosphere. The reaction mixture was stirred at 50° C. for 3 hours. The mixture was diluted with water and extracted with EtOAc. The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography (50% EtOAc in PE) to give 5-bromo-1,3-dimethyl-7-vinylquinolin-2(1H)-one (5.0 g, 14 mmol, 58% yield, 80% Purity) as a white solid.
LC-MS (ESI): mass calcd. for C13H12BrNO, 277.0/279.0; m/z found, 278.0/280.0 [M+H]+.
To a solution of 5-bromo-1,3-dimethyl-7-vinylquinolin-2(1H)-one (5.0 g, 80% wt., 14.4 mmol, 1 eq.) in EtOH (40 mL) was added Wilkinson's catalyst (1.5 g, 1.62 mmol, 0.11 eq.) at room temperature. The reaction mixture was stirred at 50° C. under H2 atmosphere for 4 hours.
The mixture was concentrated under reduced pressure. The residue was purified by flash chromatography (20% EtOAc in DCM) to give 5-bromo-7-ethyl-1,3-dimethylquinolin-2(1H)-one (3.0 g, 10.7 mmol, 75% yield).
LC-MS (ESI): mass calcd. for C13H14BrNO, 279.0/281.0; m/z found, 280/282 [M+H]+.
A mixture of 4,6-dichloropyridin-2-amine (10 g, 61.3 mmol, 1.0 eq.), Boc2O (16 g, 73.6 mmol, 1.2 eq.), DMAP (374 mg, 3.1 mmol, 0.05 eq.), and TEA (16.7 mL, 123 mmol, 2.0 eq.) in DCM (100 mL) was stirred at 25° C. for 16 hours under N2. The resulting solution was diluted with 300 mL of water and extracted with DCM (100 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to give tert-butyl (4,6-dichloropyridin-2-yl)carbamate (9.0 g, 56% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C10H12Cl2N2O2, 262.03; m/z found, 263 [M+H]+.
To a solution of tert-butyl (4,6-dichloropyridin-2-yl)carbamate (8.9 g, 33.8 mmol, 1.0 eq.) in THF (100 mL) was added n-BuLi (34 mL, 84.6 mmol, 2.5 eq., 2.5 M in THF) at −78° C. The mixture was stirred at −78° C. for 30 mins. DMF (13 mL, 169 mmol, 5.0 eq.) was then added to this mixture at −78° C. The mixture was stirred at −78° C. for another 30 mins under N2.
The resulting solution was quenched with 2 N HCl at −78° C. and extracted with EtOAc (100 mL×3). The combined organic layers were washed with brine (100 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to give tert-butyl (4,6-dichloro-3-formylpyridin-2-yl)carbamate (6 g, 61% yield) as a white solid.
LC-MS (ESI): mass calcd. for C11H12Cl2N2O3, 290.0; m/z found, 291 [M+H]+.
To a solution of tert-butyl (4,6-dichloro-3-formylpyridin-2-yl)carbamate (4 g, 13.7 mmol, 1.0 eq.) in toluene (20 mL) was added MeNH2 (14 mL, 27.5 mmol, 2.0 eq., 2 M in THF) at 25° C. The mixture was stirred at 25° C. for 2 hours under N2. The reaction mixture was concentrated under reduced pressure. The residue was dissolved in THF (20 mL). NaBH4 (1 g, 27.5 mmol, 2.0 eq.) was added and stirred at 25° C. for another 16 hours. The mixture was quenched with sat. NaHCO3 and stirred at 25° C. for 1 hour. The suspension was filtered and the filter cake was washed with water and dried under vacuum to give 5,7-dichloro-3-methyl-3,4-dihydropyrido[2,3-d]pyrimidin-2(1H)-one (2 g, 63% yield) as a white solid.
LC-MS (ESI): mass calcd. for C8H7C12N3O, 231.0; m/z found, 232 [M+H]+.
A mixture of 5,7-dichloro-3,4-dihydropyrido[2,3-d]pyrimidin-2(1H)-one (2.5 g, 11.5 mmol, 1.0 eq.), potassium trifluoro(vinyl)borate (2 g, 14.9 mmol, 1.3 eq.), Pd(dppf)Cl2 (890 mg, 1.15 mmol, 0.1 eq.), and K2CO3 (4.8 g, 34.4 mmol, 3.0 eq.) in 1,4-dioxane (25 mL) and H2O (2.5 mL) was stirred at 80° C. for 5 hours under N2. The reaction solution was diluted with 50 mL of water and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. Then the residue was purified by flash chromatography (100-200 mesh silica gel, 0-50% EtOAc in PE) to give 5-chloro-3-methyl-7-vinyl-3,4-dihydropyrido[2,3-d]pyrimidin-2(1H)-one(2 g, 78% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C10H10ClN3O, 223.1; m/z found, 224 [M+H]+.
To a solution of 5-chloro-3-methyl-7-vinyl-3,4-dihydropyrido[2,3-d]pyrimidin-2(1H)-one (300 mg, 1.3 mmol, 1.0 eq.) in EtOH (3 mL) was added Wilkinson's catalyst (80 mg) at 25° C. The mixture was stirred at 50° C. for 16 hours under H2. The resulting solution was concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give 5-chloro-7-ethyl-3-methyl-3,4-dihydropyrido[2,3-d]pyrimidin-2(1H)-one (150 mg, 50% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C10H12ClN3O, 225.1; m/z found, 226 [M+H]+.
To a solution of 5-chloro-7-ethyl-3-methyl-3,4-dihydropyrido[2,3-d]pyrimidin-2(1H)-one (150 mg, 665 μmol, 1.0 eq.) in DMF (5 mL) was added NaH (40 mg, 997 μmol, 1.5 eq., 60% wt.). The mixture was stirred at 0° C. for 30 mins under N2. Then, Mel (189 mg, 1.4 mmol, 2.0 eq.) was added to this mixture. The mixture was stirred at 30° C. for 30 mins under N2. The resulting solution was diluted with 50 mL of sat. NH4Cl and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-40% EtOAc in PE) to give 5-chloro-7-ethyl-1,3-dimethyl-3,4-dihydropyrido[2,3-d]pyrimidin-2(1H)-one (130 mg, 82% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C11H14ClN3O, 239.1; m/z found, 240 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 7.00 (s, 1H), 4.42 (s, 2H), 3.26 (s, 3H), 2.93 (s, 3H), 2.66 (m, J=7.6 Hz, 2H), 1.20 (t, J=7.6 Hz, 3H).
To a solution of 6-bromo-2-iodopyridin-3-ol (4 g, 13.3 mmol, 1.0 eq.), ethyl (E)-4-bromobut-2-enoate (2.6 g, 13.3 mmol, 1.0 eq.) in Toluene (60 mL) was added silver carbonate (7.4 g, 26.7 mmol, 2.0 eq.). The mixture was stirred at 80° C. for 3 hours under N2 atmosphere. The resulting solution was diluted with 50 mL of H2O and extracted with EtOAc (40 mL×3). The combined organic layers were washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-20% EtOAc in PE) to give ethyl (E)-4-((6-bromo-2-iodopyridin-3-yl)oxy)but-2-enoate (3.5 g, yield 64%) as a white solid.
LC-MS (ESI): mass calcd. for C11H11BrINO3, 410.9/412.9; m/z found, 411.7/413.7 [M+H]+.
To a solution of ethyl (E)-4-((6-bromo-2-iodopyridin-3-yl)oxy)but-2-enoate (4 g, 9.7 mmol, 1.0 eq.), X-Phos Palladacycle (764 mg, 971 μmol, 0.1 eq.) in DMF (10 mL) was added Na2CO3 (2.1 g, 19.4 mmol, 2.0 eq.). The mixture was stirred at 80° C. for 16 hours under N2 atmosphere. The resulting solution was diluted with 50 mL of H2O and extracted with EtOAc (40 mL×3). The combined organic layers were washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-20% EtOAc in PE) to give ethyl 2-(5-bromofuro[3,2-b]pyridin-3-yl)acetate (800 mg, yield 29%) as a white solid.
LC-MS (ESI): mass calcd. for C10H5BrNO3, 282.9/283.9; m/z found, 283.8/285.8 [M+H]+.
To a solution of methyl 2-(5-bromofuro[3,2-b]pyridin-3-yl)acetate (600 mg, 2.2 mmol, 1.0 eq.), t-BuOK (250 mg, 2.2 mmol, 1.0 eq.) in DMF (10 mL) was added acrylamide (160 mg, 2.2 mmol, 1.0 eq.). The mixture was stirred at room temperature for 2 hours under N2 atmosphere. The resulting solution was diluted with 40 mL of H2O and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-20% EtOAc in PE) to give 3-(5-bromofuro[3,2-b]pyridin-3-yl)piperidine-2,6-dione (80.0 mg, yield 12%) as a white solid.
LC-MS (ESI): mass calcd. for C12H9BrN2O3, 307.8/309.8; m/z found, 308.7/310.7 [M+H]+.
To a solution of 3-(5-bromofuro[3,2-b]pyridin-3-yl)piperidine-2,6-dione (50 mg, 162 μmol, 1.0 q.), CuI (6 mg, 32.3 μmol, 0.2 eq.), Pd(PPh3)C12 (11 mg, 16.2 μmol, 0.1 eq.) in DMF (2 mL) was added TEA (225 μL, 1.62 mmol, 10.0 eq.) and added tert-butyl prop-2-yn-1-ylcarbamate (75 mg, 485 μmol, 3.0 eq.) at 90° C. The mixture was stirred at 90° C. for 3 hours under N2 atmosphere. The resulting solution was diluted with 10 mL of H2O and extracted with EtOAc (10 mL×3). The combined organic layers were washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-40% EtOAc in PE) to give tert-butyl (3-(3-(2,6-dioxopiperidin-3-yl)furo[3,2-b]pyridin-5-yl)prop-2-yn-1-yl)carbamate (50 mg, yield 81%) as a brown solid.
LC-MS (ESI): mass calcd. for C20H21N3O5, 383.1; m/z found, 384.4 [M+H]+.
To a solution of tert-butyl (3-(3-(2,6-dioxopiperidin-3-yl)furo[3,2-b]pyridin-5-yl)prop-2-yn-1-yl)carbamate (40 mg, 104.3 μmol, 1.0 eq.) in DCM (3 mL) was added TFA (0.6 mL) at 0° C. The mixture was stirred at room temperature for 1 hour under N2 atmosphere. The reaction was concentrated under vacuum to give 3-(5-(3-aminoprop-1-yn-1-yl)furo[3,2-b]pyridin-3-yl)piperidine-2,6-dione (28.0 mg, yield 95%) as a brown solid.
LC-MS (ESI): mass calcd. for C15H13N3O3, 283.1; m/z found, 284.4 [M+H]+.
A mixture of 2-chloro-6,7-dihydro-5H-pyrimido[4,5-b][1,4]oxazine (450 mg, 2.6 mmol, 1.0 eq.), methyl 3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate (1.4 g, 5.2 mmol, 2.0 eq.), Pd(dtbpf)Cl2 (171 mg, 262 μmol, 0.1 eq.) and K3PO4 (1.6 g, 7.8 mmol, 3.0 eq.) in 1,4-Dioxane (5 mL) and H2O(0.5 mL) was stirred at 100° C. for 1.5 hours under N2. The resulting solution was diluted with 50 mL of H2O and extracted with EtOAc (40 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-70% EtOAc in PE) to give methyl 5-(6,7-dihydro-5H-pyrimido[4,5-b][1,4]oxazin-2-yl)-3-methylpicolinate (350 mg, yield 46.6%) as a yellow solid.
LC-MS (ESI): mass calcd. for C13H12N4O3, 272.1; m/z found, 273.1 [M+H]+.
A mixture of methyl 5-(6,7-dihydro-5H-pyrimido[4,5-b][1,4]oxazin-2-yl)-3-methylpicolinate (80 mg, 279 μmol, 1.0 eq.),6-bromo-1,3,4-trimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (85 mg, 335 μmol, 1.2 eq.), Ru-Phos (26 mg, 56 μmol, 1.2 eq.), Ru-Phos Pd G1 (41 mg, 56 μmol, 0.2 eq.) and Cs2CO3 (273 mg, 838 μmol, 3.0 eq.) in 1,4-Dioxane (2 mL) was stirred at 100° C. for 16 hours under N2. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to give methyl 3-methyl-5-(5-(1,3,7-trimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-6,7-dihydro-5H-pyrimido[4,5-b][1,4]oxazin-2-yl)picolinate (80 mg, yield 62%) as ayellow solid. LC-MS (ESI): mass calcd. for C23H22N6O4, 446.1; m/z found, 447.1 [M+H]+.
Methyl 5-(5-(3-ethyl-1,7-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-6,7-dihydro-5H-pyrimido[4,5-b][1,4]oxazin-2-yl)picolinate (30 mg, 65.1 μmol, 1.0 eq.) in THF (3 mL) and H2O(1 mL) was added LiGH (6 mg, 130 μmol, 2.0 eq.). The mixture was stirred at 25° C. for 30 mins. The reaction was monitored by LCMS. The resulting solution was dried over anhydrous sodium sulfate and concentrated under reduced pressure to afford 5-(5-(3-ethyl-1,7-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-6,7-dihydro-5H-pyrimido[4,5-b][1,4]oxazin-2-yl)picolinic acid (29 mg, yield 99%) as a yellow solid.
LC-MS (ESI): mass calcd. for C22H20N6O4, 432.1; m/z found, 433.1 [M+H]+.
To a solution of 4-chlorofuro[3,2-c]pyridine (15.0 g, 97.7 mmol, 1 eq.) in DMF (150 mL): MeOH (150 mL) was added TEA (49.4 g, 68.1 mL, 488 mmol, 5 eq.) and Pd(dppf)Cl2 (10 g, 14.7 mmol, 0.15 eq.). The reaction was stirred at 80° C. for 16 hours under CO atmosphere. The resulting solution was diluted with 100 mL of water and extracted with EtOAc (3* 150 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford methyl furo[3,2-c]pyridine-4-carboxylate (8.0 g, yield 46.2%) as a white solid. LC-MS (ESI): mass calcd. for C9H7NO3, 177.0; m/z found, 178.0 [M+H]+.
To a mixture of methyl furo[3,2-c]pyridine-4-carboxylate (8.0 g, 45.2 mmol, 1 eq.) in MeOH (30 mL) was added NaBH4 (25.6 g, 677 mmol, 15 eq.), and the solution was stirred at 25° C. for 3 hours under N2 atmosphere. The resulting solution was diluted with 100 mL of water and extracted with EtOAc (3* 100 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford furo[3,2-c]pyridin-4-ylmethanol (4.0 g, yield 59.4%) as a yellow solid. LC-MS (ESI): mass calcd. for C8H7NO2, 149.0; m/z found, 150.0 [M+H]+.
To a stirred mixture of furo[3,2-c]pyridin-4-ylmethanol (4.0 g, 26.8 mmol, 1 eq.) and Imidazole (3.6 g, 53.6 mmol, 2 eq.) in DCM (40 mL) was added TBSCI (6.1 g, 40.2 mmol, 1.5 eq.), the reaction mixture was stirred at 25° C. for 1 hour under N2 atmosphere. The resulting solution was diluted with 50 mL of water and extracted with DCM (3*50 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford 4-(((tert-butyldimethylsilyl)oxy)methyl)furo[3,2-c]pyridine (4.0 g, yield 56.6%) as a yellow solid. LC-MS (ESI): mass calcd. for C14H21NO2Si, 263.1; m/z found, 264.0 [M+H]+.
To a solution of 4-(((tert-butyldimethylsilyl)oxy)methyl)furo[3,2-c]pyridine (4.0 g, 15.2 mmol, 1 eq.) in THF (30 mL) was added LDA (18.2 mL, 18.2 mmol, 1.2 eq., 1 M in THF) at −78° C. The reaction was stirred at −78° C. for 1 hour under N2 atmosphere. Then added a mixture of 12 (4.6 g, 18.2 mmol, 1.2 eq.) in THF (3 mL). The reaction was stirred at −78° C. for 1 hour under N2 atmosphere. LCMS showed the reaction was completed. The mixture was diluted with sat. NH4Cl and diluted with 60 mL of water and extracted with EtOAc (3*60 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford 4-(((tert-butyldimethylsilyl)oxy)methyl)-2-iodofuro[3,2-c]pyridine (2.7 g, yield 45.7%) as a white solid. LC-MS (ESI): mass calcd. for C14H20INO2Si, 389.0; m/z found, 390.0 [M+H]+.
To the solution of 4-(((tert-butyldimethylsilyl)oxy)methyl)-2-iodofuro[3,2-c]pyridine (2.00 g, 5.14 mmol, 1 eq.) in MeCN (25 mL) was added HCl (5 mL) (4M in 1,4-dioxane) at 0° C. and stirred at 0° C. for 2 hours. The resulting solution was adjusted pH=7-9 with aq.
NaHCO3 and extracted with EtOAc (50 mL) and the layers were separated. The organic layer was washed with brine (20 mL) three times, dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0%-100% EtOAc in PE) to afford (2-iodofuro[3,2-c]pyridin-4-yl)methanol (1.0 g, yield 71%) as a yellow solid. LC-MS (ESI): mass calcd. for C8H6INO2, 274.9; m/z found, 276.0 [M+H]+.
To a solution of (2-iodofuro[3,2-c]pyridin-4-yl)methanol (1.0 g, 3.6 mmol, 1 eq.) in THF (10 mL) was added tributylphosphane (1.5 g, 7.2 mmol, 2 eq.) and (E)-diazene-1,2-diylbis(piperidin-1-ylmethanone) (1.8 g, 7.2 mmol, 2 eq.). The mixture was flushed three times with nitrogen, then added 2-hydroxy-2-methylpropanenitrile (464 mg, 5.4 mmol, 1.5 eq.) under N2 atmosphere. The reaction was stirred at 25° C. for 1 hour. and diluted with 60 mL of water and extracted with EtOAc (3*60 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford 2-(2-iodofuro[3,2-c]pyridin-4-yl)acetonitrile (500 mg, yield 48.4%) as a white solid. LC-MS (ESI): mass calcd. for C9H5IN2O, 283.9; m/z found, 285.0 [M+H]+.
To a solution of 2-(2-iodofuro[3,2-c]pyridin-4-yl)acetonitrile (400 mg, 1.4 mmol, 1 eq) and K2CO3 (389 mg, 2.8 mmol, 2 eq.) in DMF (15 mL) was added ethyl 3-bromopropanoate (254.9 mg, 1.4 mmol, 1 eq.) and stirred at 50° C. for 1.5 hours. and diluted with 40 mL of water and extracted with EtOAc (3×40 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford ethyl 4-cyano-4-(2-iodofuro[3,2-c]pyridin-4-yl)butanoate (150 mg, yield 28%) as a yellow solid. LC-MS (ESI): mass calcd. for C14H13IN2O3, 384.0; m/z found, 385.0 [M+H]+.
To a solution of ethyl 4-cyano-4-(2-iodofuro[3,2-c]pyridin-4-yl)butanoate (150 mg, 390 μmol, 1 eq.) in AcOH (8 mL) was added con. H2SO4 (400 μL) with stirring. The mixture was stirred at 100° C. for 2 hours under N2 atmosphere. The resulting solution was concentrated under reduced pressure and dropped into NaHCO3with stirring till the pH >7. The resulting solution was diluted with 20 mL of water and extracted with EtOAc (3*20 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford 3-(2-iodofuro[3,2-c]pyridin-4-yl)piperidine-2,6-dione (120 mg, yield 86.3%) as a white solid. LC-MS (ESI): mass calcd. for C12H9IN2O3, 356.0; m/z found, 357 [M+H]+.
To the solution of 3-(2-iodofuro[3,2-c]pyridin-4-yl)piperidine-2,6-dione (50 mg, 140 μmol, 1 eq.) Pd(PPh3)Cl2 (20 mg, 28.1 μmol, 0.2 eq.) and CuI (6 mg, 28.1 μmol, 0.2 eq.) and TEA (157 μL, 1.12 mmol, 8 eq.) in DMF (5 mL) was added tert-butyl prop-2-yn-1-ylcarbamate (26 mg, 168 μmol, 1.2 eq.) at 25° C. The mixture was stirred at 80° C. for 2 hours under N2 atmosphere. The resulting solution was diluted with 20 mL of water and extracted with EtOAc (3*20 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% MeOH in DCM) to afford tert-butyl (3-(4-(2,6-dioxopiperidin-3-yl)furo[3,2-c]pyridin-2-yl)prop-2-yn-1-yl)carbamate (35.0 mg, yield 65.0%) as a yellow solid. LC-MS (ESI): mass calcd. for C20H21N3O5, 383.2; m/z found, 384.2 [M+H]+.
To a solution of tert-butyl (3-(4-(2,6-dioxopiperidin-3-yl)furo[3,2-c]pyridin-2-yl)prop-2-yn-1-yl)carbamate (35 mg, 91.3 μmol, 1 eq.) in DCM (3 mL) were added TFA (0.6 mL), and the reaction was stirred at 25° C. for 30 mins. The reaction was monitored by LCMS and concentrated under reduced pressure to afford crude 3-(2-(3-aminoprop-1-yn-1-yl)furo[3,2-c]pyridin-4-yl)piperidine-2,6-dione (25 mg, crude) as a brown oil. LC-MS (ESI): mass calcd. for C15H13N3O3, 283.1; m/z found, 284.1 [M+H]+.
To a solution of tert-butyl (2-bromopyrimidin-5-yl)carbamate (8 g, 30 mmol, 1.0 eq.) in DMF (80 mL) was added NaH (1.5 g, 60 mmol, 2.0 eq.) at 0° C. The mixture was then stirred at 0° C. for 30 mins under N2. Mel (4 mL, 6 mmol, 2.0 eq.) was added at 0° C. The mixture was then stirred at 25° C. for 1 hour under N2. The resulting solution was diluted with 500 mL of H2O and extracted with EtOAc (200 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to afford tert-butyl (2-bromopyrimidin-5-yl)(methyl)carbamate (5 g, yield 60%) as a white solid. LC-MS (ESI): mass calcd. for C10H14BrN3O2, 287.0/289.0; m/z found, 288.0/290.0 [M+H]+. Step B: methyl 5-(8-(1,3-dimethyl-2-oxo-7-(((trifluoromethyl)sulfonyl)oxy)-1,2-dihydroquinolin-5-yl)isoquinolin-3-yl)picolinate
To the solution of methyl 3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate (4 g, 14.6 mmol, 1.5 eq.), tert-butyl (2-bromopyrimidin-5-yl)(methyl)carbamate (2.8 g, 9.72 mmol, 1.0 eq.) and K2CO3 (4 g, 29 mmol, 3.0 eq.) in 1,4-Dioxane: H2O(100 mL, 10:1) was added 1,1′-Bis(diphenylphosphino)ferrocene-palladium(II) dichloride (711 mg, 972 μmol, 0.1 eq.) at r.t. The mixture was stirred at 100° C. for 1.5 hours under N2 atmosphere. The resulting solution was diluted with 100 mL of H2O and extracted with EtOAc (100 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-60% EtOAc in PE) to afford methyl 5-(5-((tert-butoxycarbonyl)(methyl)amino)pyrimidin-2-yl)-3-methylpicolinate (3.3 g, yield 95%) as a brown soild.
LC-MS (ESI): mass calcd. for C18H22N4O4, 358.1; m/z found, 359.1 [M+H]+.
To a solution of methyl 5-(5-((tert-butoxycarbonyl)(methyl)amino)pyrimidin-2-yl)-3-methylpicolinate (2.1 g, 5.8 mmol, 1.0 eq.) in DCM (20 mL) was added TFA (4 mL) stirred at 25° C. for 3 hours. The resulting solution was dried over anhydrous sodium sulfate and concentrated under reduced pressure to afford methyl 3-methyl-5-(5-(methylamino)pyrimidin-2-yl)picolinate (1.4 g, yield 92%) as a yellow solid.
LC-MS (ESI): mass calcd. for C13H14N4O2, 258.1; m/z found, 259.1 [M+H]+.
To a solution of 1,3-dimethyl-2-oxo-7-(tetrahydro-2H-pyran-4-yl)-2,3-dihydro-1H-benzo[d]imidazol-5-yl trifluoromethanesulfonate (450 mg, 1.1 mmol, 1.0 eq.) methyl 3-methyl-5-(5-(methylamino)pyrimidin-2-yl)picolinate (294 mg, 1.1 mmol, 1.0 eq.), Cs2CO3 (1.1 g, 3.4 mmol, 3.0 eq.) and Pd2(dba)3 (104 mg, 114 μmol, 0.1 eq.) in Toluene (8 mL) was added 2-(Dicyclohexylphosphanyl)-2′,4′,6′-tris(isopropyl)biphenyl (108 mg, 228 μmol, 0.2 eq.) at 25° C. The mixture was stirred at 100° C. for 5 hours under N2 atmosphere. The mixture was diluted water and extracted with EtOAC (30 mL×3). The combined organic layers were washed with brine (30 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0-30% EtOAc in PE) to afford methyl 5-(5-((1,3-dimethyl-2-oxo-7-(tetrahydro-2H-pyran-4-yl)-2,3-dihydro-1H-benzo[d]imidazol-5-yl)(methyl)amino)pyrimidin-2-yl)-3-methylpicolinate (210 mg, yield 36%) as a yellow solid.
LC-MS (ESI): mass calcd. for C27H30N6O4, 502.2; m/z found, 503.2 [M+H]+. Step E: 5-(5-((1,3-dimethyl-2-oxo-7-(tetrahydro-2H-pyran-4-yl)-2,3-dihydro-1H-benzo[d]imidazol-5-yl)(methyl)amino)pyrimidin-2-yl)-3-methylpicolinic acid
To a solution of methyl 5-(5-((1,3-dimethyl-2-oxo-7-(tetrahydro-2H-pyran-4-yl)-2,3-dihydro-1H-benzo[d]imidazol-5-yl)(methyl)amino)pyrimidin-2-yl)-3-methylpicolinate (230 mg, 457 μmol, 1.0 eq.) in THF:H2O=1:1 (3 mL) was added Lithium hydroxide monohydrate (38 mg, 915 μmol, 2.0 eq.) at 25° C. The mixture was stirred at 25° C. for 30 mins under N2 atmosphere.
The resulting solution was concentrated under reduced pressure to afford 5-(5-((1,3-dimethyl-2-oxo-7-(tetrahydro-2H-pyran-4-yl)-2,3-dihydro-1H-benzo[d]imidazol-5-yl)(methyl)amino)pyrimidin-2-yl)-3-methylpicolinic acid (226 mg, crude) as a yellow solid.
LC-MS (ESI): mass calcd. for C26H28N6O4, 488.2; m/z found, 489.2 [M+H]+.
To a mixture of azetidin-3-ol (236 mg, 3.2 mmol, 1.5 eq.) and 4,6-dichloro-1,3-dimethyl-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (500 mg, 2.1 mmol, 1 eq.) in DMSO (6 mL) was added DABCO (48 mg, 431 μmol, 0.2 eq.) and K2CO3 (893 mg, 6.5 mmol, 3 eq.), and the solution was stirred at 120° C. for 12 hours. The resulting solution was diluted with 50 ml of water and extracted with EtOAc (3*60 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford 6-chloro-4-(3-hydroxyazetidin-1-yl)-1,3-dimethyl-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (310 mg, yield 53.5%) as a white solid.
1H NMR (400 MHz, DMSO-d6) δ 6.94 (s, 1H), 5.62 (d, J=6.3 Hz, 1H), 4.57-4.47 (m, 1H), 4.28-4.21 (m, 2H), 3.86 (dd, J=9.0, 5.2 Hz, 2H), 3.43 (s, 3H), 3.28 (s, 3H).
To a mixture of methyl 5-(8-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoquinolin-3-yl)picolinate (240 mg, 614 μmol, 1.1 eq,), 6-chloro-4-(3-hydroxyazetidin-1-yl)-1,3-dimethyl-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (150 mg, 558 μmol, 1 eq.) and K2CO3 (231 mg, 1.67 mmol, 3 eq.) in DMF (3 mL) and was added X-Phos Palladacycle (43.9 mg, 55.8 μmol, 0.1 eq.), the reaction at 100° C. for 1 hour. The resulting solution was diluted with 50 ml of water and extracted with EtOAc (3*30 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford methyl 5-(8-(4-(3-hydroxyazetidin-1-yl)-1,3-dimethyl-2-oxo-2,3-dihydro-1H-imidazo[4,5-c]pyridin-6-yl)isoquinolin-3-yl)picolinate (60.0 mg, yield 21.6%) as a yellow solid. LC-MS (ESI): mass calcd. for C27H24N6O4, 496.2; m/z found, 497.2 [M+H]+.
To the solution of methyl 5-(8-(4-(3-hydroxyazetidin-1-yl)-1,3-dimethyl-2-oxo-2,3-dihydro-1H-imidazo[4,5-c]pyridin-6-yl)isoquinolin-3-yl)picolinate (20 mg, 40.3 μmol, 1 eq.) in THF (3 mL) was added the solution of lithium hydroxide (2 mg, 80.6 μmol, 2 eq.) in H2O(600 μL) and stirred at 25° C. for 30 mins. The resulting solution was diluted with 50 ml of water and extracted with EtOAc (3*20 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford 5-(8-(4-(3-hydroxyazetidin-1-yl)-1,3-dimethyl-2-oxo-2,3-dihydro-1H-imidazo[4,5-c]pyridin-6-yl)isoquinolin-3-yl)picolinic acid (20 mg, crude) as a yellow solid. LC-MS (ESI): mass calcd. for C26H22N6O4, 482.2; m/z found, 483.2 [M+H]+.
To a solution of 5-bromo-3-iodopyrazolo[1,5-a]pyridine (2.0 g, 6.2 mmol, 1.0 eq.) in 1,4-Dioxane (20 mL) and H2O(2 mL) was added 2,6-bis(benzyloxy)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (2.8 g, 6.8 mmol, 1.1 eq.), Na2CO3 (2.0 g, 18.6 mmol, 3.0 eq.) and Pd(dppf)Cl2 (453 mg, 619 μmol, 0.1 eq.) under N2. The reaction mixture was stirred at 60° C. for 2 hours. The mixture was diluted with water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel eluted with EtOAc: PE (100:1-5:1) to give 3-(2,6-bis(benzyloxy)pyridin-3-yl)-5-bromopyrazolo[1,5-a]pyridine (1.0 g, 33% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C26H20BrN3O2, 485.07; m/z found, 486.07/488.07 [M+H]+.
To a solution of 3-(2,6-bis(benzyloxy)pyridin-3-yl)-5-bromopyrazolo[1,5-a]pyridine (1 g, 2.1 mmol, 1.0 eq.) in 1,4-Dioxane (15 mL) was added 4,4,4′,4′,5,5,5′,5′-octamethyl-2,2′-bi(1,3,2-dioxaborolane) (627 mg, 2.5 mmol, 1.2 eq.), Potassium acetate (605 mg, 6.2 mmol, 3.0 eq.) and Pd(dppf)Cl2 (150 mg, 206 μmol, 0.1 eq.) under N2. The reaction mixture was stirred at 100° C. for 3 hours. The resulting solution was diluted with 20 ml of water and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine (20 mL×3), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel eluted with EtOAc: PE (100:1˜10:1) to give 3-(2,6-bis(benzyloxy)pyridin-3-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazolo[1,5-a]pyridine (800 mg, 73% yield) as a white solid.
LC-MS (ESI): mass calcd. for C32H32BN3O4, 533.25; m/z found, 534.25 [M+H]+.
To a solution of 3-(2,6-bis(benzyloxy)pyridin-3-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazolo[1,5-a]pyridine (800 mg, 1.5 mmol, 1.0 eq.) in Acetone (10 mL) and H2O(5 mL)was added Oxone (922 mg, 1.5 mmol, 1.0 eq.). The reaction mixture was stirred at 30° C. for 1 hour. The resulting solution was filtered and washed with water. The filter cake was purified by column chromatography on silica gel eluted with EtOAc: PE (100:1˜1:1) to give 3-(2,6-bis(benzyloxy)pyridin-3-yl)pyrazolo[1,5-a]pyridin-5-ol (450 mg, 71% yield) as a white solid.
LC-MS (ESI): mass calcd. for C26H21N3O3, 423.16; m/z found, 424.16 [M+H]+.
To a solution of 3-(2,6-bis(benzyloxy)pyridin-3-yl)pyrazolo[1,5-a]pyridin-5-ol (300 mg, 708 μmol, 1.0 eq.) in EtOH (30 mL) was added added Pd/C (120 mg, w.t.=10%). The mixture was degassed with H2 for 3 times and stirred at 60° C. using a H2 balloon for 4 hours. The resulting solution was filtered through a Celite pad and filtrate was concentrated under reduced pressure. The residue was purified with flash column chromatography on silica gel eluted with EtOAc: PE (100:1˜10:3) to afford 3-(5-hydroxypyrazolo[1,5-a]pyridin-3-yl)piperidine-2,6-dione (100 mg, 57.6% yield) as a white solid.
LC-MS (ESI): mass calcd. for C12H11N3O3, 245.08; m/z found, 246.08 [M+H]+.
To a solution of 3-(5-hydroxypyrazolo[1,5-a]pyridin-3-yl)piperidine-2,6-dione (80 mg, 326 μmol, 1.0 eq.) in DCM (10 mL) was added TEA (91 μL, 652 μmol, 2.0 eq.) and Phenyl triflimide (175 mg, 489 μmol, 1.5 eq.). The reaction mixture was stirred at 30° C. for 1 hour. The resulting solution was diluted with 20 ml of water and extracted with DCM (20 mL×3). The combined organic layers were washed with brine (20 mL×3), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel eluted with EtOAc: PE (100:1˜100:70) to give 3-(2,6-dioxopiperidin-3-yl)pyrazolo[1,5-a]pyridin-5-yl trifluoromethanesulfonate (50 mg, 40% yield) as a yellow oil.
LC-MS (ESI): mass calcd. for C13H10F3N305S, 377.03; m/z found, 378.03 [M+H]+.
To a solution of 3-(2,6-dioxopiperidin-3-yl)pyrazolo[1,5-a]pyridin-5-yl trifluoromethanesulfonate (30.0 mg, 80 μmol, 1.0 eq.) in DMF (2 mL) and TEA (0.5 mL, 800 μmol, 10.0 eq.) was added CuI (1.5 mg, 8 μmol, 0.1 eq.) and Pd(PPh3)2C12 (5.58 mg, 8 μmol, 0.1 eq.) and tert-butyl prop-2-yn-1-ylcarbamate (37 mg, 3 240 μmol, 3.0 eq.) under N2. The reaction mixture was stirred at 30° C. for 2 hours. The resulting solution was diluted with 20 ml of water and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine (20 mL×3), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel eluted with EtOAc: PE (100:1-100:60) to give tert-butyl (3-(3-(2,6-dioxopiperidin-3-yl)pyrazolo[1,5-a]pyridin-5-yl)prop-2-yn-1-yl)carbamate (20 mg, 66% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C20H22N4O4, 382.16; m/z found, 383.16 [M+H]+.
To a solution of tert-butyl (3-(3-(2,6-dioxopiperidin-3-yl)benzofuran-5-yl)prop-2-yn-1-yl)carbamate (20 mg, 52 μmol, 1.0 eq.) in DCM (3 mL) was added HCl (1 mL, 4 M in 1.4-dioxane). The reaction mixture was stirred at 30° C. for 1 hour. The resulting solution was concentrated under reduced pressure to give 3-(5-(3-aminoprop-1-yn-1-yl)benzofuran-3-yl)piperidine-2,6-dione (20 mg, crude) as a brown solid.
LC-MS (ESI): mass calcd. for C15H14N4O2, 282.11; m/z found, 283.11 [M+H]+.
To a solution of propan-2-one (4 g, 68.7 mmol, 4.0 eq.) in THF (40 mL) was added 1-(4-bromo-5-fluoro-2-hydroxyphenyl) ethan-1-one (4 g, 17.2 mmol, 1.0 eq.), DIEA (3 mL, 17.2 mmol, 1.0 eq.) and Pyrrolidine (1.3 mL, 15.4 mmol, 0.9 eq.), the solution was stirred at 70° C. for 16 hours to give brown solution. TLC showed the reaction was completed. The resulting solution was diluted with 100 mL of water and extracted with EtOAc (3×100 mL). The combined organic layers were washed with brine (100 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜30% EtOAc in PE) to afford 7-bromo-6-fluoro-2,2-dimethylchroman-4-one (2.4 g, yield 49%) as a yellow solid. The product was no Ms signal. 1H NMR (400 MHz, DMSO-d6) δ 7.56 (d, J=8.3 Hz, 1H), 7.46 (d, J=5.5 Hz, 1H), 2.84 (s, 2H), 1.39 (s, 7H).
To a solution of methyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate (3.5 g, 13.2 mmol, 1.5 eq.) in 1,4-Dioxane (30 mL) and Water (1.5 mL) was added 7-bromo-6-fluoro-2,2-dimethylchroman-4-one (2.4 g, 8.8 mmol, 1.0 eq.), K2CO3 (3.6 g, 26 mmol, 3.0 eq.) and Pd(dppf)Cl2 (643 mg, 879 μmol, 0.1 eq.) under N2. The solution was stirred at 100° C. for 2 hours to give black solution. LCMS showed the reaction was completed. The resulting solution was diluted with 100 mL of water and extracted with EtOAc (3×100 mL). The combined organic layers were washed with brine (100 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜100% EtOAc in PE) to afford methyl 5-(6-fluoro-2,2-dimethyl-4-oxochroman-7-yl) picolinate (2.5 g, yield 82%) as a yellow solid. LC-MS (ESI): mass calcd. for C18H16FNO4, 330.2; m/z found, 331.2 [M+H]+.
To a solution of methyl 5-(6-fluoro-2,2-dimethyl-4-oxochroman-7-yl)picolinate (800 mg, 2.4 mmol, 1.0 eq.) in THF (10 mL) was added LiHMDS (0.49 mL, 4.9 mmol, 1M in THF, 2.0 eq.), the solution was stirred at −78° C. for 30 mins, then Tf2O (1.3 mL, 7.3 mmol,1.677 g/ml, 3.0 eq.) was added to the above solution and stirred at −78° C. for 30 mins to give yellow solution. LCMS showed the reaction was completed. The solution was quenched with sat. NH4C1 solution, extracted with EtOAc (50 mL) and the layers were separated. The organic layer was washed with brine (50 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜30% EtOAC in PE) to afford methyl 5-(6-fluoro-2,2-dimethyl-4-(((trifluoromethyl)sulfonyl)oxy)-2H-chromen-7-yl)picolinate (400 mg, yield 18%) as a yellow solid. LC-MS (ESI): mass calcd. for C19H15F4NO6S, 461.3; m/z found, 462.3 [M+H]+.
To a solution of 4-isopropyl-1,3-dimethyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3-dihydro-2H-benzo[d]imidazol-2-one (315 mg, 954 μmol, 1.1 eq.) in 1,4-Dioxane (10 mL) and Water (0.5 mL) was added methyl 5-(6-fluoro-2,2-dimethyl-4-(((trifluoromethyl)sulfonyl)oxy)-2H-chromen-7-yl)picolinate (400 mg, 867 μmol, 1 0.0 eq.), K3PO4 (552 mg, 2.6 mmol, 3.0 eq.) and Pd(dppf)Cl2 (63.4 mg, 86.7 μmol, 0.1 eq.) under N2. The solution was stirred at 100° C. for 2 hours to give black solution. LCMS showed the reaction was completed. The resulting solution was diluted with 20 mL of water and extracted with EtOAc (3×30 mL). The combined organic layers were washed with brine (30 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜100% EtOAC in PE) to afford methyl 5-(6-fluoro-4-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-2,2-dimethyl-2H-chromen-7yl) picolinate (150 mg, yield 32%) as a yellow solid. LC-MS (ESI): mass calcd. for C30H30FN3O4, 515.6; m/z found, 516.6 [M+H]+.
To a solution of methyl 5-(6-fluoro-4-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-2,2-dimethyl-2H-chromen-7-yl)picolinate (50 mg, 97 μmol, 1.0 eq.) in THF (5 mL) and Water (1 mL) was added LiGH (8.1 mg, 194 μmol, 2.0 eq.), the solution was stirred at 25° C. for 30 mins to give yellow solution. LCMS showed the reaction was completed. The solution was concentrated to afford 5-(6-fluoro-4-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-2,2-dimethyl-2H-chromen-7-yl)picolinic acid (50 mg, Li salt, crude) as a yellow solid. LC-MS (ESI): mass calcd. for C29H28FN3O4, 501.6; m/z found, 502.6 [M+H]+.
A mixture of 7-bromo-5-methoxy-1,3-dimethylquinolin-2(1H)-one (600 mg, 2.1 mmol, 1.0 eq.), 2-(3,6-dihydro-2H-pyran-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxa borolane (1.3 g, 6.3 mmol, 3.0 eq.), Pd(dppf)Cl2 (233 mg, 319 μmol, 0.15 eq.) and Na2CO3 (676 mg, 6.3 mmol, 3.0 eq.) in 1,4-Dioxane (10 mL) and H2O(1 mL) was stirred at 100° C. for 3 hours under N2. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc and 10% DCM in PE) to give 7-(3,6-dihydro-2H-pyran-4-yl)-5-methoxy-1,3-dimethylquinolin-2(1H)-one (400 mg, 66% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C17H19NO3, 285.14; m/z found, 286 [M+H]+.
To a solution of 7-(3,6-dihydro-2H-pyran-4-yl)-5-methoxy-1,3-dimethylquinolin-2(1H)-one (1.3 g, 4.5 mmol, 1.0 eq.) in CD30D (100 mL) and Tetrahydrofuran-D8 (10 mL) was stirred at 50° C. for 5 hours under D2. The resulting solution was filtered by celite pad to give 5-methoxy-1,3-dimethyl-7-(tetrahydro-2H-pyran-4-yl-3,4-d2)quinolin-2(1H)-one (1.2 g, 91% yield) as a white solid. LC-MS (ESI): mass calcd. for C17H19D2NO3, 289.16; m/z found, 290 [M+H]+.
A mixture of 5-methoxy-1,3-dimethyl-7-(tetrahydro-2H-pyran-4-yl-3,4-d2)quinolin-2(1H)-one (450 mg, 1.6 mmol, 1.0 eq.) and sodium ethanethiolate (1.3 g, 15.6 mmol, 10.0 eq.) in DMF (10 mL) was stirred at 110° C. for 2 hours under N2. The resulting solution was removed under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-80% EtOAc in PE) to give 5-hydroxy-1,3-dimethyl-7-(tetrahydro-2H-pyran-4-yl-3,4-d2)quinolin-2(1H)-one (300 mg, 70% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C16H17D2NO3, 275.15; m/z found, 276 [M+H]+.
To a solution of 5-hydroxy-1,3-dimethyl-7-(tetrahydro-2H-pyran-4-yl-3,4-d2)quinolin-2(1H)-one (879 mg, 3.2 mmol, 1.0 eq), Pyridine (1.0 mL, 12.8 mmol, 4.0 eq.) in DCM (15.0 mL) was added trifluoromethanesulfonic anhydride (1.8 g, 6.4 mmol 2.0 eq.) at 0° C.
The mixture was stirred at 0° C. for 2 hours under N2. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to give 1,3-dimethyl-2-oxo-7-(tetrahydro-2H-pyran-4-yl-3,4-d2)-1,2-dihydroquinolin-5-yl trifluoromethanesulfonate (900 mg, 69% yield) as a white solid. LC-MS (ESI): mass calcd. for C17H16D2F3NO5S, 407.10; m/z found, 408 [M+H]+.
A mixture of 1,3-dimethyl-2-oxo-7-(tetrahydro-2H-pyran-4-yl-3,4-d2)-1,2-dihydroquinolin-5-yl trifluoromethanesulfonate (75 mg, 184 μmol, 1.0 eq.), methyl 5-(5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinate (50 mg, 184 μmol, 1.0 eq.), Ru-Phos Pd G1 (27 mg, 36.8 μmol, 0.2 eq.) and Ru-Phos (17 mg, 36.8 μmol, 0.2 eq.) in 1,4-Dioxane (2 mL) was stirred at 100° C. for 3 hours under N2. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give methyl 5-(5-(1,3-dimethyl-2-oxo-7-(tetrahydro-2H-pyran-4-yl-3,4-d2)-1,2-dihydroquinolin-5-yl)-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinate (50 mg, 52% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C30H29D2N5O4, 527.25; m/z found, 528 [M+H]+.
A mixture of methyl 5-(5-(1,3-dimethyl-2-oxo-7-(tetrahydro-2H-pyran-4-yl-3,4-d2)-1,2-dihydroquinolin-5-yl)-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinate (55 mg, 104 μmol, 1.0 eq.) and lithium hydroxide (3 mg, 104 μmol, 1.0 eq.) in THF (1 mL) and H2O(1 mL) was stirred at 25° C. for 30 mins under N2. The resulting solution was reduced pressure to give 5-(5-(1,3-dimethyl-2-oxo-7-(tetrahydro-2H-pyran-4-yl-3,4-d2)-1,2-dihydroquinolin-5-yl)-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinic acid (30 mg, 56% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C29H27D2N5O4, 513.23; m/z found, 514 [M+H]+.
To a solution of 4-bromobenzenethiol (5.0 g, 26.4 mmol, 1 eq.) in THF (100 mL) was added methyl 2-bromoacetate (6.1 g, 39.7 mmol, 1.5 eq.) and TEA (7.4 mL, 52.9 mmol, 2 eq.) at 25° C. The mixture was then stirred at 70° C. for 4 hours under N2 atmosphere. The resulting solution was diluted with 100 mL of water and extracted with EtOAc (100 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure to give methyl 2-((4-bromophenyl)thio)acetate (6.9 g, crude). The product was used for next step directly without further purification.
1H NMR (400 MHz, DMSO-d6) δ 7.55-7.47 (m, 2H), 7.34-7.27 (m, 2H), 3.94 (s, 2H), 3.63 (s, 3H).
To a solution of methyl 2-((4-bromophenyl)thio)acetate (3.9 g, 14.9 mmol, 1 eq.) in MeOH:H2O(99 mL, 10:1) was added NaH (1.2 g, 29.9 mmol, 2 eq. wt=60% in oil) at 25° C. The mixture was then stirred at 25° C. for 16 hours under N2 atmosphere. The mixture was acidified with HCl (6 M in water) and extracted with EtOAc (100 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure to give 2-((4-bromophenyl)thio)acetic acid (3.5 g, crude). The product was used for next step directly without further purification.
LC-MS (ESI): mass calcd. for C8H7BrO2S, 245.9; m/z found, 244.8/246.8 [M−H]-.
To a solution of 2-((4-bromophenyl)thio)acetic acid (3 g, 12.1 mmol, 1 eq.) in TfOH (15 mL) at 25° C. The mixture was then stirred at 80° C. for 30 mins under N2 atmosphere. The resulting solution was diluted with 30 mL of water and extracted with EtOAc (30 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-5% EA in PE) to give 5-bromobenzo[b]thiophen-3(2H)-one (1.2 g, 41% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C8H5BrOS, 227.9; m/z found, 229.0/231.0 [M+H]+.
1H NMR (400 MHz, CDCl3) δ 7.89 (d, J=1.6 Hz, 1H), 7.64 (dd, J=8.4, 2.0 Hz, 1H), 7.31 (d, J=8.4 Hz, 1H), 3.83 (s, 2H).
To a solution of 5-bromobenzo[b]thiophen-3(2H)-one (400 mg, 1.75 mmol, 1 eq.) in Toluene (10 mL) was added ethyl 2-(triphenyl-{5}-phosphanylidene)acetate (608 mg, 1.75 mmol, 1 eq.) at 25° C. The mixture was then stirred at 110° C. for 16 hours under N2 atmosphere. The resulting solution was diluted with 20 mL of water and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-5% EtOAc in PE) to give ethyl 2-(5-bromobenzo[b]thiophen-3-yl)acetate (245 mg, 47% yield) as a yellow oil.
1H NMR (400 MHz, CDCl3) δ 7.84 (d, J=1.8 Hz, 1H), 7.64 (d, J=8.5 Hz, 1H), 7.38 (dd, J=8.6, 1.8 Hz, 1H), 7.32 (s, 1H), 4.14-4.09 (m, 2H), 3.74 (d, J=0.7 Hz, 2H), 1.22-1.20 (m, 3H).
To a solution of ethyl 2-(5-bromobenzo[b]thiophen-3-yl)acetate (200 mg, 668 μmol, 1 eq.) in DMF (5 mL) was added potassium 2-methylpropan-2-olate (75 mg, 668 μmol, 1 eq.) and acrylamide (190 mg, 2.67 mmol, 4 eq.) at 0° C. The mixture was then stirred at 25° C. for 2 hours under N2 atmosphere. The resulting solution was diluted with 20 mL of water and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to give 3-(5-bromobenzo[b]thiophen-3-yl)piperidine-2,6-dione (100 mg, 46% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C13H10BrNO2S, 323.0; m/z found, 323.9/325.9 [M+H]+.
To a solution of 3-(5-bromobenzo[b]thiophen-3-yl)piperidine-2,6-dione (90 mg, 278 μmol, 1 eq.) in DMF (4 mL) was added Pd(PPh3)2C12 (20 mg, 27.8 μmol, 0.1 eq.), CuI (5 mg, 27.8 μmol, 0.1 eq.), PCy3 (8 mg, 27.8 μmol, 0.1 eq.), TEA (387 μL, 2.78 mmol, 10 eq.) and tert-butyl prop-2-yn-1-ylcarbamate (129 mg, 833 μmol, 3 eq.) at 25° C. The mixture was then stirred at 80° C. for 2 hours under N2 atmosphere. The resulting solution was diluted with 20 mL of water and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-25% EtOAc in PE) to give tert-butyl (3-(3-(2,6-dioxopiperidin-3-yl)benzo[b]thiophen-5-yl)prop-2-yn-1-yl)carbamate (60 mg, 54% yield) as a yellow oil.
To a solution of tert-butyl (3-(3-(2,6-dioxopiperidin-3-yl)benzo[b]thiophen-5-yl)prop-2-yn-1-yl)carbamate (63 mg, 158 μmol, 1 eq.) in DCM (4 mL) was added TFA (0.4 mL) at 0° C. The mixture was then stirred at 25° C. for 1 hour under N2 atmosphere. The resulting solution was concentrated under vacuum to give 3-(5-(3-aminoprop-1-yn-1-yl)benzo[b]thiophen-3-yl)piperidine-2,6-dione (47 mg, crude) and which was used for next step directly without further purification. LC-MS (ESI): mass calcd. for C16H14N2O2S, 298.1; m/z found, 299.2 [M+H]+.
To a solution of 5,7-dichloro-1,3-dimethyl-1,6-naphthyridin-2(1H)-one (100 mg, 411 μmol, 1.2 eq.), Pd2(dba)3 (31 mg, 34.28 μmol, 0.1 eq.), methyl 5-(5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinate (93 mg, 343 μmol, 1.0 eq.) and Xant-Phos (40 mg, 69 μmol, 0.2 eq.) in 1,4-Dioxane (5 mL) was added K2CO3 (142 mg, 1 mmol, 3,0 eq.) at 25° C.
The mixture was stirred at 100° C. for 2 hours under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 50 ml of water and extracted with EtOAc (3×50 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford methyl 5-(5-(7-chloro-1,3-dimethyl-2-oxo-1,2-dihydro-1,6-naphthyridin-5-yl)-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinate (60 mg, yield 37%) as a yellow solid.
LC-MS (ESI): mass calcd. for C24H21ClN6O3, 476.1; m/z found, 477.1 [M+H]+.
To a solution of methyl 5-(5-(7-chloro-1,3-dimethyl-2-oxo-1,2-dihydro-1,6-naphthyridin-5-yl)-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinate (60 mg, 126 μmol, 1.0 eq.), Pd2(dba)3 (12 mg, 13 μmol, 0.1 eq.), diethylamine (138 mg, 1.9 mmol, 15.0 eq.) and Xant-Phos (14.6 mg, 25 μmol, 0.2 eq.) in dioxane (3 mL) was added Cs2CO3 (123 mg, 377 μmol, 3.0 eq.) at 25° C. The mixture was stirred at 100° C. for 10 hours under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 20 ml of water, then extracted with EtOAc (3×20 mL) and washed with brine. The combined organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford productmethyl 5-(5-(7-(diethylamino)-1,3-dimethyl-2-oxo-1,2-dihydro-1,6-naphthyridin-5-yl)-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinate (22 mg, yield 35%) as a yellow solid. LC-MS (ESI): mass calcd. for C28H31N7O3, 513.3; m/z found, 514.3 [M+H]+.
To a solution of methyl 5-(5-(7-(diethylamino)-1,3-dimethyl-2-oxo-1,2-dihydro-1,6-naphthyridin-5-yl)-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinate (22 mg, 43 μmol, 1.0 eq.) in THF (2 mL) and H2O(2 mL) was added LiGH (2 mg, 86 μmol, 2.0 eq.) at 25° C. The mixture was then stirred at 25° C. for 1 hour. LCMS showed the reaction was completed. The reaction was concentrated under vacuum and which was used in the next step without further purification. LC-MS (ESI): mass calcd. for C28H3MN7O3, 512.3; m/z found, 513.3 [M+H]+.
To a solution of 2-bromo-6-fluoro-4-methylbenzaldehyde (5.0 g, 23.0 mmol, 1.0 eq.) in MeNH2 (20 mL, 69.1 mmol, 3 eq., 3M in EtOH.) was stirred at 80° C. for 16 hours. The mixture was diluted water and extracted with EtOAC (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜10% EtOAC in PE) to afford (E)-3-bromo-N,5-dimethyl-2-((methylimino)methyl)aniline (2.3 g, yield 41%) as a yellow solid.
LC-MS (ESI): mass calcd. for C10H13BrN2, 240.0/242.0; m/z found, 241.0/243.1 [M+H]+.
To a solution of (E)-3-bromo-N,5-dimethyl-2-((methylimino)methyl)aniline (2.3 g, 9.54 mmol, 1 eq.) in 2N HCl (35 mL) was stirred at 25° C. for 2 hours under N2. The resulting solution was quenched with 100 mL of aq. NaHCO3 and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to give 2-bromo-4-methyl-6-(methylamino)benzaldehyde (1.8 g, yield 83%) as a yellow solid.
LC-MS (ESI): mass calcd. for C9H10BrNO, 226.9/228.9; m/z found, 227.9/229.9 [M+H]+.
A mixture of 2-bromo-4-methyl-6-(methylamino)benzaldehyde (1.8 g, 7.89 mmol, 1.0 eq.), Cs2CO3 (5.1 g, 15.8 mmol, 2.0 eq.) and propionyl chloride (1.1 g, 11.8 mmol, 1.5 eq.) in DMF (15 mL) was stirred at 60° C. for 1.5 hours under N2. The resulting solution was quenched with 50 mL of sat. NH4Cl and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure.
The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give N-(3-bromo-2-formyl-5-methylphenyl)-N-methylpropionamide (800 mg, yield 36%) as a yellow oil. LC-MS (ESI): mass calcd. for C12H14BrNO2, 283.0/285.0; m/z found, 284.2/286.2 [M+H]+.
A mixture of N-(3-bromo-2-formyl-5-methylphenyl)-N-methylpropionamide (700 mg, 2.46 mmol, 1.0 eq.), Cs2CO3 (1.6 g, 4.93 mmol, 2.0 eq.) in MeOH (10 mL) was stirred at 80° C. for 2 hours under N2. The resulting solution was quenched with 50 mL of sat. NH4Cl and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give 5-bromo-1,3,7-trimethylquinolin-2(1H)-one (280 mg, yield 43%) as a yellow solid.
LC-MS (ESI): mass calcd. for C12H12BrNO, 265.1/267.1; m/z found, 266.0/268.0 [M+H]+.
To a solution of 2,4-dichloro-5-nitropyrimidine (5 g, 26 mmol, 1.0 eq.) in DCM (100 mL) was added TEA (7 mL, 51.6 mmol, 2.0 eq.) and methyl methylglycinate (2.6 g, 26 mmol, 1.0 eq.) at 0° C. The mixture was stirred at 0° C. for 15 mins under nitrogen atmosphere. The reaction was monitored by LCMS. The mixture was diluted water and extracted with EtOAC (300 mL×3). The combined organic layers were washed with brine (300 mL×2), dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0%-10% EtOAC in PE) to afford the product methyl N-(2-chloro-5-nitropyrimidin-4-yl)-N-methylglycinate (4 g, yield 59%) as a yellow solid. LC-MS (ESI): mass calcd. for C8H11ClN4O3, 246.0; m/z found, 247.0 [M+H]+.
To a solution of methyl N-(2-chloro-5-nitropyrimidin-4-yl)-N-methylglycinate (4 g, 15 mmol 1.0 eq.), Iron (4.3 g, 77 mmol, 5.0 eq.) in AcOH (40 mL). The reaction mixture was stirred at 80° C. for 2 hours. The mixture was diluted water and extracted with EtOAC (200 mL×3). The combined organic layers were washed with brine (100 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0-30% EtOAc in PE) to give 2-chloro-8-methyl-7,8-dihydropteridin-6(5H)-one (900 mg, yield 29%) as a white solid. LC-MS (ESI): mass calcd. for C7H7ClN4O, 198.0; m/z found, 199.0 [M+H]+.
To a solution of 2-chloro-8-methyl-7,8-dihydropteridin-6(5H)-one (695 mg, 3.5 mmol, 1.0 eq.), Boranetetrahydrofurancomplexsolution (12 mL, 12 mmol, 3.4 eq., 1 M in Tol) in THF (12 mL). The reaction mixture was stirred at 60° C. for 1 hour. The mixture was diluted water and extracted with EtOAC (60 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0-50% EtOAc in PE) 2-chloro-8-methyl-5,6,7,8-tetrahydropteridine (0.4 g, yield 54%) as a yellow solid. LC-MS (ESI): mass calcd. for C7H9ClN4, 180.0; m/z found, 181.0 [M+H]+.
To a mixture of 2-chloro-8-methyl-5,6,7,8-tetrahydropteridine (120 mg, 650 μmol, 1.0 eq.), methyl 3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate (270 mg, 975 mol, 1.5 eq.), 1,1′-Bis(di-t-butylphosphino)ferrocene palladium dichloride (84.7 mg, 130 μmol, 0.2 eq.) in 1,4-Dioxane (5 mL) and Water (0.5 mL) was added K3PO4 (414 mg, 1.9 mmol, 3.0 eq.).
The reaction mixture was purged with nitrogen three times, then heated to 100° C. for 2 hours under nitrogen. The mixture was diluted water and extracted with EtOAC (60 mL×3). The combined organic layers were washed with brine (100 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0-60% EtOAc in PE) to give methyl 3-methyl-5-(8-methyl-5,6,7,8-tetrahydropteridin-2-yl)picolinate (90 mg, yleld 46%) as a yellow solid. LC-MS (ESI): mass calcd. for C14H15N5O2, 285.1; m/z found, 286.1 [M+H]+.
To a solution of 3,6-dichloropyridazine (2 g, 13.4 mmol, 1.0 eq.) in DMSO (26 mL) was added 4CzIPN (212 mg, 269 μmol, 0.02 eq.), Benzoyl peroxide (5.2 mL, 27 mmol, 2.0 eq.), 4-((tert-butoxycarbonyl)amino)butanoic acid (3.3 g, 16.1 mmol, 1.2 eq.) and molecular sieves pack 4A (1.6 g,13.4 mmol, 1.0 eq.) under visible light irradiation (White LED, 6500 K), the solution was stirred at 25° C. for 16 hours in a PhotoRedOx Box (EvoluChem™). The resulting solution was diluted with 100 mL of water and extracted with EtOAc (3×100 mL). The combined organic layers were washed with brine (3×100 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography on silica gel to afford tert-butyl (3-(3,6-dichloropyridazin-4-yl)propyl)carbamate (2.2 g, yield 51%) as colorless oil. LC-MS (ESI): mass calcd. for C12H17Cl2N3O2, 305.2; m/z found, 250.2 [M+H−56]+.
A solution of tert-butyl (3-(3,6-dichloropyridazin-4-yl)propyl)carbamate (2.2 g, 7.8 mmol, 1.0 eq.) in HCl in dioxane (20 mL) was stirred at 25° C. for 1 hour to give white solution.
LCMS showed the reaction was completed. The solution was concentrated to afford 3-(3,6-dichloropyridazin-4-yl)propan-1-amine (1.5 g, yield 94%) as a white solid. LC-MS (ESI): mass calcd. for C7H9C12N3, 205.1; m/z found, 206.1 [M+H]+.
To a solution of 3-(3,6-dichloropyridazin-4-yl)propan-1-amine (600 mg, 2.9 mmol, 1.0 eq.) in BuOH (10 mL) was added DIEA (2.5 mL, 14.6 mmol, 5.0 eq.). The solution was stirred at 100° C. for 16 hours to give yellow solution. LCMS showed the reaction was completed. The resulting solution was diluted with 100 mL of water and extracted with EtOAc (100 mL). The combined organic layers were washed with brine (100 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜100% EtOAc in PE) to afford 3-chloro-5,6,7,8-tetrahydropyrido[2,3-c]pyridazine (120 mg, yield 24%) as a yellow solid. LC-MS (ESI): mass calcd. for C7H8ClN3, 169.6; m/z found, 170.6 [M+H]+.
A mixture of (2-bromophenyl)methanamine (25 g, 134 mmol, 1.2 eq.) and methyl 2-hydroxypropanoate (12 g, 112 mmol, 1.0 eq.) in reaction vessel. The mixture was stirred at 130° C. for 6 hours under N2. LCMS showed the reaction was completed. The resulting solution concentrated under reduced pressure to give N-(2-bromobenzyl)-2-hydroxypropanamide (35 g, yield 73%) as a yellow solid. LC-MS (ESI): mass calcd. for C10H12BrNO2, 257.0/259.0; m/z found, 258/260.0 [M+H]+.
A solution of N-(2-bromobenzyl)-2-hydroxypropanamide (35.0 g, 136 mmol, 1.0 eq.) and DMP (58 g, 136 mmol, 1.0 eq.) in DCM (400 mL) was stirred at 25° C. for 30 mins under N2 atmosphere. After cooled to room temperature, the resulting solution was diluted with 300 mL of water and extracted with EA (500 mL×3). The combined organic layers were washed with brine (200 mL×2), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-20% EtOAc in PE) to give N-(2-bromobenzyl)-2-oxopropanamide (17 g, yield 49%) as a yellow solid. LC-MS (ESI): mass calcd. for C10H10BrNO2, 255.0/257.0; m/z found, 256.0/257.0. [M+H]+.
H2SO4 (25 mL) was dropped in N-(2-bromobenzyl)-2-oxopropanamide (9 g, 35 mmol, 1.0 eq.) at 0° C. The mixture was stirred at 60° C. for 16 hours under N2 atmosphere. LCMS showed desired MS. The reaction mixture was then slowly poured over ice. The resulting slurry in a 500 mL Erlenmeyer flask was cooled in an ice bath and rendered basic (pH 10) with the dropwise addition of NaHCO3. The resulting solution was diluted with 300 mL of water and extracted with EA (200 mL×3). The combined organic layers were washed with brine (150 mL×2), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to give 8-bromo-4-methylisoquinolin-3-ol (300 mg, yield 3.6%) as a yellow solid.
LC-MS (ESI): mass calcd. for C10HsBrNO, 237/239; m/z found, 238/240 [M+H]+.
A mixture of 8-bromo-4-methylisoquinolin-3-ol (120 mg, 504 μmol, 1.0 eq.), PdC12(dppf) (148 mg, 202 μmol, 0.4 eq.), 1,3-dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3-dihydro-2H-benzo[d]imidazol-2-one (174 mg, 605 μmol, 1.2 eq.) and K2CO3 (209 mg, 1.5 mmol, 3.0 eq.) in 1,4-Dioxane (10 mL) and Water (0.5 mL). The mixture was stirred at 100° C. for 6 hours under N2. The resulting solution was diluted with 50 mL of H2O and extracted with EtOAc (60 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-70% EtOAc in PE) to give 5-(3-hydroxy-4-methylisoquinolin-8-yl)-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (40.0 mg, yield 24.8%) as a yellow solid.
LC-MS (ESI): mass calcd. for C19H17N3O2, 319.1; m/z found, 320.1 [M+H]+.
A mixture of 5-(3-hydroxy-4-methylisoquinolin-8-yl)-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (40 mg, 125 μmol, 1.0 eq.) and TEA (69.8, 501 μmol, 4.0 eq.) in DCM (4 mL) was added Tf2O (0.03 mL, 251 μmol, 2.0 eq.). The mixture was stirred at 25° C. for 60 mins under N2. The resulting solution was diluted with 20 mL of H2O and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-70% EtOAc in PE) to give 8-(1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-4-methylisoquinolin-3-yl trifluoromethanesulfonate (40 mg, yield 35.4%) as a yellow solid.
LC-MS (ESI): mass calcd. for C28H20F3N306S, 451.1; m/z found, 452.1 [M+H]+.
A mixture of 8-(1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-4-methylisoquinolin-3-yl trifluoromethanesulfonate (40 mg, 88 μmol, 1.0 eq.), PdC12(dppf) (13 mg, 17 μmol, 0.2 eq.), methyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate (117 mg, 443 μmol, 5.0 eq.) and K2CO3 (37 mg, 266 μmol, 3.0 eq.) in Water (0.2 mL) and 1,4-Dioxane (4 mL).
The mixture was stirred at 100° C. for 30 min under N2. The resulting solution was diluted with 50 mL of H2O and extracted with EtOAc (60 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-70% EtOAc in PE) to give methyl 5-(8-(1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-4-methylisoquinolin-3-yl)picolinate (15 mg, yield 38%) as a yellow solid. LC-MS (ESI): mass calcd. for C26H22N4O3, 438.1; m/z found, 439.1 [M+H]+.
To a solution of methyl 5-(8-(1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-4-methylisoquinolin-3-yl)picolinate (15 mg, 33 μmol, 1.0 eq.) in THF (1 mL) and Water (1 mL) was added lithium hydroxide (1.5 mg, 45.6 μmol, 2.0 eq.) at 25° C. The mixture was then stirred at 25° C. for 0.5 hour under N2. The reaction mixture was concentrated under vacuum to afford 5-(8-(1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-4-methylisoquinolin-3-yl)picolinic acid (15 mg, crude) as a LiGH salt.
LC-MS (ESI): mass calcd. for C25H20N4O3, 424.1; m/z found, 425.1 [M+H]+.
To a solution of 4-bromopyridin-2(1H)-one (1.2 g, 6.9 mmol, 1.0 eq.) and methyl 3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate (2.3 g, 8.3 mmol, 1.2 eq.) in Pyridine (60 mL) were added Cu(OAc)2 (3.8 g, 20.7 mmol, 3.0 eq.) and Molecular sieves, 4A. The reaction mixture was stirred at 68° C. for 7 hours. The mixture was quenched water (40 mL), extracted with EtOAc (40 mL×3) and the layers were separated. The organic layers were washed with brine (50 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜3% DCM in MeOH) to afford methyl 4-bromo-5′-methyl-2-oxo-2H-[1,3′-bipyridine]-6′-carboxylate (300 mg, yield 13%) as a white solid. LC-MS (ESI): mass calcd. for C13H11BrN2O3, 321.9/323.9; m/z found, 323.1/325.1 [M+H]+.
A mixture of methyl 4-bromo-5′-methyl-2-oxo-2H-[1,3′-bipyridine]-6′-carboxylate (300 mg, 928 μmol, 1.0 eq.), tert-butyl methylcarbamate (134 mg, 1 mmol, 1.1 eq.), PdOAc2 (21 mg, 93 μmol, 0.1 eq.), Xantphos (54 mg, 93 μmol, 0.1 eq.) and Cs2CO3 (303 mg, 928 μmol, 1.0 eq.) in 1,4-Dioxane (5 mL) was stirred at 100° C. for 6 hours under N2. The mixture was diluted water and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine (20 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-60% EtOAc in PE) to give methyl 4-((tert-butoxycarbonyl)(methyl)amino)-5′-methyl-2-oxo-2H-[1,3′-bipyridine]-6′-carboxylate (120 mg, yield 35%) as a yellow solid. LC-MS (ESI): mass calcd. for C19H23N3O5,373.2; m/z found, 374 [M+H]+.
A mixture of methyl 4-((tert-butoxycarbonyl)(methyl)amino)-5′-methyl-2-oxo-2H-[1,3′-bipyridine]-6′-carboxylate (120 mg, 321 μmol, 1.0 eq.) in DCM (5 mL) and TFA (1 mL) was stirred at 25° C. for 1 hour. The mixture was concentrated to afford methyl 5′-methyl-4-(methylamino)-2-oxo-2H-[1,3′-bipyridine]-6′-carboxylate (80 mg, yield 91%) as a yellow solid.
LC-MS (ESI): mass calcd. for C14H15N3O3,273.1; m/z found, 274 [M+H]+.
A mixture of ethyl 2-(5-bromobenzofuran-3-yl)acetate (5 g, 17.7 mmol, 1.0 eq.), (1S,2S)—N1,N2-dimethylcyclohexane-1,2-diamine (202 mg, 1.8 mmol, 0.1 eq.), CuI (168 mg, 883 μmol, 0.05 eq.) and NaI (5.3 g, 35.3 mmol, 2.0 eq.) in 1,4-Dioxane (50 mL) was stirred at 110° C. for 20 hours under N2. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to give ethyl 2-(5-iodobenzofuran-3-yl)acetate (4 g, 69% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C12H11IO3, 329.98; m/z found, 330 [M+H]+.
To a solution of ethyl 2-(5-iodobenzofuran-3-yl)acetate (4.0 g, 12.1 mmol, 1.0 eq.), t-BuOK (1.6 g, 14.5 mmol, 1.2 eq.) in DMF (40 mL) was added acrylamide (1.0 g, 14.5 mmol, 1.2 eq.) at 0° C. The mixture was stirred at 25° C. for 2 hours under N2. The resulting solution was quenched sat. NH4Cl and filtered to give 3-(5-iodobenzofuran-3-yl)piperidine-2,6-dione (4 g, 93% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C13H10INO3, 354.97; m/z found, 356 [M+H]+.
To a mixture of methyl 7-fluorobenzofuran-4-carboxylate (3.3 g, 1.7 mmol, 1.0 eq.) in THF (50 mL) was added LDA (9 mL, 1.8 mmol, 1.2 eq. 2 μmol/L in THF) at −78° C., the mixture was stirred at −78° C. for 30 mins, then a solution was 12 (570 mg, 2.2 mmol, 1.3 eq.) in THE was added this mixture and stirred at 25° C. for 2 hours. The resulting solution was diluted with 50 mL of H2O and extracted with EtOAc (60 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to give methyl 7-fluoro-2-iodobenzofuran-4-carboxylate (1.8 g, yield 33.1%) as a yellow oil. LC-MS (ESI): mass calcd. for C10H6FIO3, 319.9; m/z found, 320.9 [M+H]+.
To a mixture of methyl 7-fluoro-2-iodobenzofuran-4-carboxylate (1.6 g, 5 mmol, 1.0 eq.) in THF (20 mL) was added DIBAL-H (4 mL, 6 μmol, 1.2 eq., 1.5 μmol/L in THF) at −78° C., the mixture was stirred at −78° C. for 30 mins. The mixture was quenched Potassium sodium tartrate tetrahydrate solution, extracted with EtOAC (100 mL×3) and the layers were separated. The organic layer was washed with brine (100 mL×3), dried over Na2SO4, filtered and concentrated. The product was purified by flash chromatography (100-200 mesh silica gel, 0% ˜20%EtOAC in PE) to afford (7-fluoro-2-iodobenzofuran-4-yl)methanol (1 g, yield 70%) as a yellow solid. 1H NMR (400 MHz, DMSO) δ 7.40 (d, J=3.0 Hz, 1H), 7.18 (dd, J=8.3, 4.5 Hz, 1H), 7.11 (d, J=10.9, 8.3 Hz, 1H), 5.31 (t, J=5.7 Hz, 1H), 4.66 (d, J=5.7 Hz, 2H).
To a solution of (7-fluoro-2-iodobenzofuran-4-yl)methanol (1 g, 3.4 mmol, 1.0 eq.), Tributyl phosphine (1.7 mL, 6.8 mmol, 2.0 eq) and 2-hydroxy-2-methylpropanenitrile (437 mg, 5 mmol, 2.0 eq) in THF (20 mL) at 0° C. for 0.5 hour. Than (NE)—N—{[(E)-piperidine-1-carbonyl]imino}piperidine-1-carboxamide (1.7 g, 6.8 mmol, 2.0 eq.) was added the mixture was stirred at 25° C. for 60 mins under N2. The resulting solution was diluted with 80 mL of water and extracted with EtOAc (80 mL×3). The combined organic layers were washed with brine (30 mL×2), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to give 2-(7-fluoro-2-iodobenzofuran-4-yl)acetonitrile (500 mg, yield 48.5%) as a yellow solid. 1H NMR (400 MHz, DMSO-d6) δ 7.48 (d, J=2.8 Hz, 1H), 7.27-7.18 (m, 2H), 4.22 (s, 2H).
A mixture of 2-(7-fluoro-2-iodobenzofuran-4-yl)acetonitrile (500 mg, 1.6 mmol, 1.0 eq.), K2CO3 (275 mg, 2 mmol, 1.2 eq.) and methyl 3-bromopropanoate (332 mg, 2 mmol, 1.2 eq.) in DMF (5 mL). The mixture was stirred at 50° C. for 2 hours under N2. LCMS showed the reaction was completed. The resulting solution was diluted with 100 mL of water and extracted with EtOAc (40 mL×3). The combined organic layers were washed with brine (40 mL×2), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-25% EtOAc in PE) to give methyl 4-cyano-4-(7-fluoro-2-iodobenzofuran-4-yl)butanoate (200 mg, yield 31%) as a yellow solid. 1H NMR (400 MHz, DMSO-d6) δ 7.53 (d, J=2.6 Hz, 1H), 7.30-7.19 (m, 2H), 4.57 (t, J=7.4 Hz, 1H), 3.96-4.12 (m, 2H), 2.40 (t, J=7.3 Hz, 2H), 2.05-2.20 (m, 2H), 1.16 (t, J=7.1 Hz, 3H)
To a solution of methyl 4-cyano-4-(7-fluoro-2-iodobenzofuran-4-yl)butanoate (300 mg, 774 μmol, 1.0 eq.) in con. H2SO4 (0.4 mL) and ACOH (8 mL). The mixture was stirred at 100° C. for 2 hours under N2. The resulting solution was diluted with 40 mL of water and extracted with EtOAc (40 mL×3). The combined organic layers were washed with brine (40 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-35% EtOAc in PE) to give 3-(7-fluoro-2-iodobenzofuran-4-yl)piperidine-2,6-dione (45 mg, yield 16%) as a yellow solid.
LC-MS (ESI): mass calcd. for C13H9FINO3, 372.9; m/z found, 373.9 [M+H]+.
To a solution of 5,7-dichloro-1,3-dimethyl-1,8-naphthyridin-2(1H)-one (1 g, 4.1 mmol, 1.0 eq.). 2-(3,6-dihydro-2H-pyran-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (907 mg, 4.3 mmol, 1.1 eq.) and K2CO3 (1.7 g, 12.3 mmol, 3.0 eq.) in 1,4-Dioxane: H2O(100 mL, 10:1) was added P, 1,1′-Bis(diphenylphosphino)ferrocene-palladium(II) dichloride (301 mg, 0.4 mmol, 0.1 eq.) at 25° C. The mixture was stirred at 80° C. for 18 hours under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 30 ml of water and extracted with EtOAc (3*30 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to afford 5-chloro-7-(3,6-dihydro-2H-pyran-4-yl)-1,3-dimethyl-1,8-naphthyridin-2(1H)-one (780 mg, yield 65%) as a white solid. LC-MS (ESI): mass calcd. for C15H15ClN2O2, 290.1; m/z found, 291.7 [M+H]+.
To a solution of 5,7-dichloro-1,3-dimethyl-1,8-naphthyridin-2(1H)-one (780 mg, 2.7 mmol, 1.0 eq.) in 2,2,2-Trifluoroethanol (7 mL) was added Wilkinson's catalyst (745 mg, 0.8 mmol, 0.3 eq.) at 25° C. The mixture was stirred at 60° C. for 18 hours under H2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 30 ml of water and extracted with EtOAc (3*30 mL). The mixture was filtered and the filtrate was concentrated under vacuum and purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-20% EtOAc in PE) to afford 5-chloro-1,3-dimethyl-7-(tetrahydro-2H-pyran-4-yl)-1,8-naphthyridin-2(1H)-one (500 mg, yield 64%) as a white solid. LC-MS (ESI): mass calcd. for C15H17ClN2O2, 292.1; m/z found, 293.4 [M+H]+.
To a solution of methyl 2-bromo-5-fluoroisonicotinate (9 g, 38.5 mmol, 1.0 eq.) in DMF (110 mL) was added methyl 2-hydroxyacetate (6.9 g, 76.9 mmol, 2.0 eq.) and Cs2CO3 (25 g, 76.9 mmol, 2.0 eq.). The reaction mixture was stirred at 80° C. for 16 hours. LCMS showed the reaction was completed. The resulting solution was diluted with 100 mL of water and extracted with EtOAc (100 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-80% EtOAc in PE) to give methyl 5-bromo-3-oxo-2,3-dihydrofuro[2,3-c]pyridine-2-carboxylate (1.8 g, 17% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C9H6BrNO4, 270.95; m/z found, 272.2 274.2[M+H]+.
To a solution of methyl 5-bromo-3-oxo-2,3-dihydrofuro[2,3-c]pyridine-2-carboxylate (1.8 g, 6.62 mmol, 1.0 eq.) in sulfuric acid (20 mL, w.t. =50%) and stirred at 70° C. for 16 hours. LCMS showed the reaction was completed. The reaction was poured into ice water (10 mL) and extracted with EtOAc (20*3 mL). The combined organic layers were washed with brine (10 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-80% EtOAc in PE) to give 5-bromofuro[2,3-c]pyridin-3(2H)-one (500 mg, 35% yield) as a colorless oil.
LC-MS (ESI): mass calcd. for C7H4BrNO2, 212.94; m/z found, 214.2 216.2 [M+H]+.
To a solution of 5-bromofuro[2,3-c]pyridin-3(2H)-one (500 mg, 2.3 mmol, 1.0 eq.) and ethyl 2-(triphenyl-15-phosphaneylidene)acetate (977 mg, 2.8 mmol, 1.2 eq.) in Toluene (10 mL) and stirred at 110° C. for 16 hours. TLC showed the reaction was completed. The reaction was concentrated in vacuum and purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give methyl 2-(5-bromofuro[2,3-c]pyridin-3-yl) acetate (430 mg, 65% yield) as a white solid. LC-MS (ESI): mass calcd. for C11H10BrNO3, 282.98; m/z found, 294.3 296.3 [M+H]+.
To a solution of methyl 2-(5-bromofuro[2,3-c]pyridin-3-yl) acetate (200 mg, 741 μmol, 1.0 eq.) in DMF (5 mL) stirred at 25° C. was added t-BuOK (100 mg, 889 μmol, 1.2 eq.) and acrylamide (63 mg, 889 μmol, 1.2 eq.). The reaction was stirred at 25° C. for 1 hour. LCMS showed the starting materials was consumed and desired MS was formed. The reaction was extracted with EtOAc and water. The combined organic layer was washed with brine (10 mL), dried over anhydrous sodium sulfate, concentrated and purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-70% EtOAc in PE) to give 3-(5-bromofuro[2,3-c]pyridin-3-yl)piperidine-2,6-dione (100 mg, 43.7% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C12H9BrN2O3, 307.98 309.98; m/z found, 309.2 311.2 [M+H]+.
To a solution of tert-butyl (2-bromopyrimidin-5-yl)(methyl)carbamate (1 g, 3.5 mmol, 1.0 eq.), (5-chloro-6-(methoxycarbonyl)pyridin-3-yl)boronic acid (748 mg, 3.5 mmol, 1.0 eq.) and K3PO4 (2.1 g, 10.4 mmol, 3.0 eq.) in 1,4-Dioxane: H2O(10 mL: 1 mL) was added Pd(dppf)Cl2 (254 mg, 347 μmol, 0.1 eq.) at 25° C. The mixture was stirred at 100° C. for 6 hours under N2 atmosphere. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (3×50 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-25% EtOAc in PE) to afford methyl 5-(5-((tert-butoxycarbonyl)(methyl)amino)pyrimidin-2-yl)-3-chloropicolinate (770 mg, 59% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C17H19ClN4O4, 378.1; m/z found, 379.1 [M+H]+.
To a solution of methyl 5-(5-((tert-butoxycarbonyl)(methyl)amino)pyrimidin-2-yl)-3-chloropicolinate (770 mg, 2.0 mmol, 1.0 eq.), potassium trifluoro(prop-1-en-2-yl)borate (1.5 g, 10.2 mmol, 5.0 eq.), Pd(dppf)Cl2 (149 mg, 203 μmol, 0.1 eq.) in 1,4-DMF: H2O(10 mL: 0.5 mL) was added K2CO3 (848 mg, 6.1 mmol, 3.0 eq.) at 25° C. The mixture was stirred at 100° C. for 6 hours under N2 atmosphere. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (3×40 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-25% EtOAc in PE) to give methyl 5-(5-((tert-butoxycarbonyl)(methyl)amino)pyrimidin-2-yl)-3-(prop-i-en-2-yl)picolinate (160 mg, 21% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C20H24N4O4, 384.2; m/z found, 385.2 [M+H]+.
To a solution of 5-(5-((tert-butoxycarbonyl)(methyl)amino)pyrimidin-2-yl)-3-(prop-1-en-2-yl)picolinate (160 mg, 416 μmol, 1 eq.) in MeOH (5 mL) was added Pd/C (40 mg, w.t.=10%). The mixture was degassed with H2 for 3 times and stirred at 25° C. using a H2 balloon for 16 hours under H2 atmosphere. The mixture was filtered through a Celite pad and the filtrate was concentrated under vacuum to afford methyl 5-(5-((tert-butoxycarbonyl)(methyl)amino)pyrimidin-2-yl)-3-isopropylpicolinate (160 mg, 99% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C20H26N4O4, 386.2; m/z found, 387.2 [M+H]+.
To a solution of 4-bromobenzofuran (8.9 g, 45.2 mmol, 1.0 eq.), potassium 2-cyanoacetate (8.9 g, 72.3 mmol, 1.6 eq.) and S-Phos (3.7 g, 9 mmol, 0.2 eq.) in dry mesitylene (8 mL) was added Allylpalladium(II)chloridedimer (3.3 g, 9 mmol, 0.2 eq.) at 25° C. The mixture was stirred at 140° C. for 16 hours under N2 atmosphere. The resulting solution was diluted with 200 mL of water and extracted with EtOAc (3×200 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-40% EtOAc in PE) to give 2-(benzofuran-4-yl)acetonitrile (3.3 g, 47% yield) as a yellow oil. No MS signal. 1H NMR (400 MHz, DMSO-d6) δ 8.07 (d, J=2.2 Hz, 1H), 7.60 (d, J=8.2 Hz, 1H), 7.35 (t, J=7.8 Hz, 1H), 7.27 (d, J=7.4 Hz, 1H), 7.15-7.11 (m, 1H), 4.29 (s, 2H).
To a solution of 2-(benzofuran-4-yl)acetonitrile (2.6 g, 16.5 mmol, 1.0 eq.), 1,3-dibromo-2,2-diethoxypropane (7.2 g, 24.8 mmol, 1.5 eq.) in dry DMF (30 mL) was added NaH (1.2 g, 29.8 mmol, 1.8 eq., w.t.=60% in oil) at 0° C. The mixture was stirred at 60° C. for 16 hours under N2 atmosphere. The resulting solution was diluted with 100 mL of sat. NH4Cl solution and extracted with EtOAc (3×100 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to give 1-(benzofuran-4-yl)-3,3-dimethoxycyclobutane-1-carbonitrile (2 g, 47% yield) as a yellow solid. No MS signal. 1H NMR (400 MHz, CDCl3) δ 7.64 (d, J=2.2 Hz, 1H), 7.44 (d, J=8.3 Hz, 1H), 7.24 (t, J=7.9 Hz, 1H), 7.14 (d, J=7.5 Hz, 1H), 6.86 (d, J=1.4 Hz, 1H), 3.26 (s, 3H), 3.13 (d, J=2.4 Hz, 1H), 3.10 (s, 4H), 2.85 (d, J=2.1 Hz, 1H), 2.83 (d, J=2.4 Hz, 1H).
To a solution of 1-(benzofuran-4-yl)-3,3-dimethoxycyclobutane-1-carbonitrile (2 g, 7.8 mmol, 1.0 eq.) in Acetone (20 mL) was added TsOH (739 mg, 3.9 mmol, 0.5 eq.) at 25° C. The mixture was stirred at 90° C. for 16 hours under N2 atmosphere. The resulting solution was diluted with 100 mL of water and extracted with EtOAc (3×50 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to give 1-(benzofuran-4-yl)-3-oxocyclobutane-1-carbonitrile (1.4 g, 85% yield) as a yellow solid. No MS signal.
To a solution of 1-(benzofuran-4-yl)-3-oxocyclobutane-1-carbonitrile (1 g, 4.7 mmol, 1.0 eq.) in MeOH (10 mL) was added Ohira-Bestmann Reagent (1.3 g, 7.1 mmol, 1.5 eq.) and K2CO3 (1.3 g, 9.5 mmol, 2.0 eq.) at 25° C. The mixture was stirred at 25° C. for 2 hours under N2 atmosphere. The resulting solution was diluted with 20 ml of water and extracted with EtOAc (3×20 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to give 1-(benzofuran-4-yl)-3-(methoxymethylene)cyclobutane-1-carbonitrile (360 mg, 32% yield) as a yellow oil. No Ms signal.
A solution of 1-(benzofuran-4-yl)-3-(methoxymethylene)cyclobutane-1-carbonitrile (360 mg, 1.5 mmol, 1.0 eq.) in DCM (5 mL): TFA (1 mL) was stirred at 25° C. for 2 hours under N2 atmosphere. The mixture was concentrated under reduced pressure to give 1-(benzofuran-4-yl)-3-formylcyclobutane-1-carbonitrile (330 mg, yield 97%) as a yellow oil. The product was used for next step directly without purification. No Ms signal.
A mixture of 1-(5-bromobenzofuran-3-yl)-3-formylcyclobutane-1-carbonitrile (330 mg, 1.1 mmol, 1.0 eq.), 2-methylbut-2-ene (1.7 mL, 16.3 mmol, 15.0 eq.), NaClO2 (491 mg, 5.43 mmol, 5.0 eq.) and NaH2PO4 (260 mg, 2.2 mmol, 2.0 eq.) in t-BuOH (4 mL): THF (2 mL): H2O(2 mL) was stirred at 25° C. for 1 hour. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure to give the crude 3-(5-bromobenzofuran-3-yl)-3-cyanocyclobutane-1-carboxylic acid (200 mg, 58% yield) as a yellow oil.
A mixture of 3-(benzofuran-4-yl)-3-cyanocyclobutane-1-carboxylic acid (200 mg, 829 μmol, 1.0 eq.) and H2SO4 (81 mg, 829 μmol, 1.0 eq.) in MeOH (10 mL) was stirred at 80° C. for 3 hours. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (30 mL×3). The combined organic layers were washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to give methyl 3-(benzofuran-4-yl)-3-cyanocyclobutane-1-carboxylate (200 mg, 95% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C15H13NO3, 255.1; m/z found, 254.1 [M−H]-.
To a solution of methyl 3-(benzofuran-4-yl)-3-cyanocyclobutane-1-carboxylate (200 mg, 783 μmol, 1.0 eq.) in Toluene (5 mL) was added Acetaldoxime (139 mg, 2.35 mmol, 3.0 eq.) and Indium trichloride (17 mg, 78.3 μmol, 0.1 eq.) at 25° C. The mixture was stirred at 100° C. for 1 hour. The resulting solution was diluted with 10 mL of water and extracted with EtOAc (3×10 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-90% EtOAc in PE) to give methyl 3-(benzofuran-4-yl)-3-carbamoylcyclobutane-1-carboxylate (100 mg, 47% yield) as a white solid. LC-MS (ESI): mass calcd. for C15H15NO4, 273.1; m/z found, 274.1 [M+H]+.
To a solution of methyl 3-(benzofuran-4-yl)-3-carbamoylcyclobutane-1-carboxylate (100 mg, 366 μmol, 1.0 eq.) in MeCN (5 mL) was added Triton B (184 mg, 1.1 mmol, 3.0 eq.) at 25° C. The mixture was stirred at 25° C. for 1 hour. The resulting solution was diluted with 10 mL of water and extracted with EtOAc (3×10 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-90% EtOAc in PE) to give 1-(benzofuran-4-yl)-3-azabicyclo[3.1.1]heptane-2,4-dione (80 mg, 91% yield) as a white solid. LC-MS (ESI): mass calcd. for C14H11NO3, 241.1; m/z found, 242.1 [M+H]+.
To a solution of 1-(benzofuran-4-yl)-3-azabicyclo[3.1.1]heptane-2,4-dione (80 mg, 332 μmol, 1.0 eq.) in MeCN (5 mL) was added NBS (177 mg, 332 μmol, 3.0 eq.) and cat. DMF (two drops) at 50° C. The mixture was stirred at 50° C. for 16 hours. The resulting solution was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-70% EtOAc in PE) to give 1-(2-bromobenzofuran-4-yl)-3-azabicyclo[3.1.1]heptane-2,4-dione (20 mg, 18% yield) as a white solid. LC-MS (ESI): mass calcd. for C14H10BrNO3, 319.0; m/z found, 320.0/322.0 [M+H]+.
To a solution of 4,6-dichloro-2-(methylthio)pyrimidine-5-carbaldehyde (6 g, 26.9 mmol, 1.0 eq.) in THF (60 mL)was added methanamine (5 mL, 32.3 mmol, 1 M in THF, 1.2 eq.) under N2. The solution was stirred at 70° C. for 2 hours to give yellow solution. LCMS showed the reaction was completed. The solution was concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜50% EtOAC in PE) to afford 4-chloro-6-(methylamino)-2-(methylthio)pyrimidine-5-carbaldehyde (3.3 g, yield 54%) as a yellow solid.
LC-MS (ESI): mass calcd. for C7H8ClN3OS, 217.7; m/z found, 218.7[M+H]+.
To a solution of 4-chloro-6-(methylamino)-2-(methylthio)pyrimidine-5-carbaldehyde (3.3 g, 20.7 mmol, 1.0 eq.) in DMF (50 mL) was added TEA (8.64 mL, 62 mmol, 3.0 eq.), propionyl chloride (3.8 g, 41.3 mmol, 2.0 eq.) and DMAP (2.5 g, 21 mmol, 1.0 eq.) at 0° C.
The solution was stirred at 90° C. for 16 hours to give yellow solution. LCMS showed the reaction was completed. The solution was filtered and concentrated to afford 4-hydroxy-6,8-dimethyl-2-(methylthio)pyrido[2,3-d]pyrimidin-7(8H)-one (1.4 g, yield 27%) as a yellow solid. LC-MS (ESI): mass calcd. for C10H11N3O2S, 237.3 m/z found, 238.3[M+H]+.
To a solution of 4-hydroxy-6,8-dimethyl-2-(methylthio)pyrido[2,3-d]pyrimidin-7(8H)-one (1.4 g, 5.9 mmol, 1.0 eq.) in DCM (20 mL) was added Tf2O (1.9 mL, 11.8 mmol, 2.0 eq.) and DIEA (2.0 mL, 11.8 mmol, 2.0 eq.) at 0° C. The solution was stirred at 0° C. for 1 hour to give yellow solution. LCMS showed the reaction was completed. The solution was quenched water, extracted with DCM (100 mL) and the layers were separated. The organic layer was washed with brine (100 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜20% EtOAC in PE) to afford 6,8-dimethyl-2-(methylthio)-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-4-yl trifluoromethanesulfonate (1.4 g, yield 61%) as a white solid. LC-MS (ESI): mass calcd. for C11H10F3N3O4S2, 369.3 m/z found, 370.3 [M+H]+.
To a solution of 2-chloro-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidine (140 mg, 825 μmol, 1.0 eq.) in 1,4-Dioxane (10 mL) was added 6,8-dimethyl-2-(methylthio)-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-4-yl trifluoromethanesulfonate (305 mg, 825 μmol, 1.0 eq.), Cs2CO3 (807 mg, 2.5 mmol, 3.0 eq.), BINAP (103 mg, 165 μmol, 0.2 eq.)and Pd2(dba)3 (75.6 mg, 82.5 μmol, 0.1 eq.) under N2. The solution was stirred at 100° C. for 2 hours to give yellow solution.
LCMS showed the reaction was completed. The solution was filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜100% EtOAC in PE) to afford 4-(2-chloro-7,8-dihydropyrido[3,2-d]pyrimidin-5(6H)-yl)-6,8-dimethyl-2-(methylthio)pyrido[2,3-d]pyrimidin-7(8H)-one (75 mg, yield 22%) as a yellow solid.LC-MS (ESI): mass calcd. for C17H17ClN6OS, 388.3; m/z found, 389.3 [M+H]+.
To a solution of 4-(2-chloro-7,8-dihydropyrido[3,2-d]pyrimidin-5(6H)-yl)-6,8-dimethyl-2-(methylthio)pyrido[2,3-d]pyrimidin-7(8H)-one (75 mg, 193 μmol, 1.0 eq). in DCM (10 mL) was added 3-Chloroperoxybenzoic acid (100 mg, 579 μmol, 3.0 eq.). The solution was stirred at 25° C. for 30 mins to give yellow solution. LCMS showed the reaction was completed.
The solution was quenched with sat. Na2S2O3 solution, extracted with DCM (50 mL) and the layers were separated. The organic layer was washed with brine (50 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜100% EtOAC in PE) to afford 4-(2-chloro-7,8-dihydropyrido[3,2-d]pyrimidin-5(6H)-yl)-6,8-dimethyl-2-(methylsulfonyl)pyrido[2,3-d]pyrimidin-7(8H)-one (58 mg, yield 68%) as a white solid. LC-MS (ESI): mass calcd. for C17H17ClN6O3S, 420.8; m/z found, 421.8 [M+H]+.
To a solution of 4-(2-chloro-7,8-dihydropyrido[3,2-d]pyrimidin-5(6H)-yl)-6,8-dimethyl-2-(methylsulfonyl)pyrido[2,3-d]pyrimidin-7(8H)-one (58 mg, 138 μmol, 1.0 eq.) in MeCN (5 mL)was added DIEA (48 μL, 276 μmol, 2.0 eq.) and morpholine (24 mg, 276 μmol, 2.0 eq.) under N2. The solution was stirred at 80° C. for 2 hours to give yellow solution. LCMS showed the reaction was completed. The solution was concentrated. The product residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜100% EtOAC in PE) to afford 4-(2-chloro-7,8-dihydropyrido[3,2-d]pyrimidin-5(6H)-yl)-6,8-dimethyl-2-morpholinopyrido[2,3-d]pyrimidin-7(8H)-one (50 mg, yield 81%) as a yellow solid. LC-MS (ESI): mass calcd. for C20H22ClN7O2, 427.9; m/z found, 428.9 [M+H]+.
To a solution of methyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate (61.5 mg, 234 μmol, 2.0 eq.) in 1,4-Dioxane (2 mL) and Water (0.2 mL) was added 4-(2-chloro-7,8-dihydropyrido[3,2-d]pyrimidin-5(6H)-yl)-6,8-dimethyl-2-morpholinopyrido[2,3-d]pyrimidin-7(8H)-one (50 mg, 117 μmol, 1.0 eq.), K3PO4 (74.4 mg, 351 μmol, 3.0 eq.) and Pd(dtbpf)Cl2 (15.2 mg, 23.4 μmol, 0.2 eq.) under N2. The solution was stirred at 100° C. for 2 hours to give black solution. LCMS showed the reaction was completed. The solution was quenched water, extracted with EA (50 mL) and the layers were separated. The organic layer was washed with brine (50 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜100% EtOAC in PE) to afford methyl 5-(5-(6,8-dimethyl-2-morpholino-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-4-yl)-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinate (55 mg, yield 85%) as a yellow solid. LC-MS (ESI): mass calcd. for C27H28N8O4, 528.6; m/z found, 529.6 [M+H]+.
To a solution of methyl 5-(5-(6,8-dimethyl-2-morpholino-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-4-yl)-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinate (50 mg, 94.6 μmol, 1.0 eq.) in THF (5 mL) and Water (1 mL) was added LiOH.H2O(7.9 mg, 189 mol, 2.0 eq.). The solution was stirred at 25° C. for 30 mins to give yellow solution. LCMS showed the reaction was completed. The solution was concentrated to afford 5-(5-(6,8-dimethyl-2-morpholino-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-4-yl)-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinic acid (50 mg, crude) as a yellow solid. LC-MS (ESI): mass calcd. for C26H26N8O4, 514.6; m/z found, 515.6 [M+H]+.
To a solution of 7-bromo-5-methoxy-1,3-dimethylquinolin-2(1H)-one (500 mg, 1.8 mmol, 1 eq.) in 1,4-Dioxane: H2O=10:1 (11 mL) was added tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,6-dihydropyridine-1(2H)-carboxylate (1.1 g, 3.5 mmol, 2 eq.) and Pd(dppf)Cl2 (130 mg, 177 μmol, 0.1 eq.) and K2CO3 (735 mg, 5.3 mmol, 3 eq.) at 25° C. The mixture was then stirred at 100° C. for 4 hours under N2. LCMS showed the reaction was completed. The resulting solution was diluted with 50 mL of water, then extracted with EtOAc (30 mL×3). The combined organic layers were washed with brine (30 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to give tert-butyl 4-(5-methoxy-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-7-yl)-3,6-dihydropyridine-1(2H)-carboxylate (500 mg, 73.4% yield) as a yellow oil. LC-MS (ESI): mass calcd. for C22H28N2O4, 384; m/z found, 385 [M+H]+.
To a solution of tert-butyl 4-(5-methoxy-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-7-yl)-3,6-dihydropyridine-1(2H)-carboxylate (500 mg, 1.3 mmol, 1 eq.) in MeOH (30 mL) was added Pd/C (100 mg, 130 μmol, 0.1 eq. w.t.=10%) at 25° C. The mixture was then stirred at 30° C. for 16 hours under H2. LCMS showed the reaction was completed. The resulting solution was diluted with 20 ml of MeOH and filtered. The combined organic layers were concentrated under reduced pressure. The residue was purified with flash column chromatography on silica gel (EtOAc in PE, from 0% to 20%) to afford tert-butyl 4-(5-methoxy-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-7-yl)piperidine-1-carboxylate (500 mg, 99% yield) as a bright oil.
LC-MS (ESI): mass calcd. for C22H3MN2O4, 386; m/z found, 387 [M+H]+.
To a solution of tert-butyl 4-(5-methoxy-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-7-yl)piperidine-1-carboxylate (500 mg, 1.3 mmol, 1 eq.) in DCM: TFA=5:1 (12 mL) was added at 0° C. The mixture was then stirred at 25° C. for 1 hour under N2. LCMS showed the reaction was completed. The reaction mixture was concentrated to give 5-methoxy-1,3-dimethyl-7-(piperidin-4-yl)quinolin-2(1H)-one (320 mg, 86% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C17H22N2O2, 286; m/z found, 287 [M+H]+.
To a stirred solution of 5-methoxy-1,3-dimethyl-7-(piperidin-4-yl)quinolin-2(1H)-one (320 mg, 1.1 mmol, 1 eq.) was added dropwise TEA (311 μL, 2.2 mmol, 2 eq.) and propionyl chloride (155 mg, 1.7 mmol, 1.5 eq.) in DCM (10 mL) at 0° C. under N2. The reaction mixture was stirred overnight at room temperature under N2 atmosphere. The resulting solution was diluted with 50 mL of H2O and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give the 5-methoxy-1,3-dimethyl-7-(1-propionylpiperidin-4-yl)quinolin-2(1H)-one (300 mg, 78.4% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C20H26N2O3, 342; m/z found, 343 [M+H]+.
To a stirred solution of 5-methoxy-1,3-dimethyl-7-(1-propionylpiperidin-4-yl)quinolin-2(1H)-one (300 mg, 876 μmol, 1 eq.) was added dropwise BBr3 (248 μL, 2.6 mmol, 3 eq.) in DCM (10 mL) at 0° C. under N2 atmosphere. The reaction mixture was stirred overnight at room temperature under N2 atmosphere. The resulting solution was diluted with 50 mL of H2O and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give 5-hydroxy-1,3-dimethyl-7-(1-propionylpiperidin-4-yl)quinolin-2(1H)-one (240 mg, 83.4% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C19H24N2O3, 328; m/z found, 329 [M+H]+
To a stirred solution of 5-hydroxy-1,3-dimethyl-7-(1-propionylpiperidin-4-yl)quinolin-2(1H)-one (200 mg, 609 μmol, 1 eq.) was added dropwise Et3N (255 μL, 1.8 mmol, 3 eq.) and Phenyl triflimide (435 mg, 1.2 mmol, 2 eq.) in DCM (10 mL) at 0° C. under N2 atmosphere. The reaction mixture was stirred overnight at room temperature under N2 atmosphere. The mixture was diluted with water and extracted with DCM. The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash chromatography (eluent, 0-10%ethyl acetate in petroleum ether/0˜10% methanol in dichloromethane) to give the 1,3-dimethyl-2-oxo-7-(1-propionylpiperidin-4-yl)-1,2-dihydroquinolin-5-yl trifluoromethanesulfonate (200 mg, 71.3% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C20H23F3N2O5S, 460; m/z found, 461 [M+H]+
To a solution of (2-bromo-5-methylphenyl)methanamine (600 mg, 3 mmol, 1.0 eq.) in MeOH (10 mL) was added DIEA (1.6 mL, 9 mmol, 3.0 eq.) and methyl 2,2-diethoxyacetimidate (580 mg, 3.6 mmol, 1.2 eq.) under N2. The solution was stirred at 70° C. for 3 hours to give yellow solution. LCMS showed the reaction was completed. The solution was quenched water, extracted with DCM (100 mL) and the layers were separated. The organic layer was washed with brine (100 mL), dried over Na2SO4, filtered and concentrated to afford N-(2-bromo-5-methylbenzyl)-2,2-diethoxyacetimidamide (800 mg, yield 77%) as a yellow oil. LC-MS (ESI): mass calcd. for C14H21BrN2O2, 328.2/330.2; m/z found, 329.2/331.2 [M+H]+.
A solution of N-(2-bromo-5-methylbenzyl)-2,2-diethoxyacetimidamide (2.9 g, 8.8 mmol, 1.0 eq.) in H2SO4 (30 mL) was stirred at 80° C. for 6 hours to give brown solution. LCMS showed the reaction was completed. The solution was adjusted to pH=12 with NaOH solution, The organic layer was filtered and concentrated to afford 8-bromo-5-methylisoquinolin-3-amine (1.5 g, yield 68%) as a yellow solid. LC-MS (ESI): mass calcd. for C10H9BrN2, 236.1/238.1; m/z found, 237.1/239.1 [M+H]+.
To a solution of 8-bromo-5-methylisoquinolin-3-amine (1.5 g, 6.3 mmol, 1.0 eq.) in CHCl3 (20 mL) was added benzyl(triethyl)ammonium chloride (5.8 g, 25.3 mmol, 4.0 eq.) and tert-Butyl nitrite (1.5 mL, 12.7 mmol, 2.0 eq.) under N2. The solution was stirred at 50° C. for 16 hours to give yellow solution. LCMS showed the reaction was completed. The solution was quenched NaHCO3 solution, extracted with DCM (60 mL) and the layers were separated. The organic layer was washed with brine (60 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜30% EtOAC in PE) to afford 8-bromo-3-chloro-5-methylisoquinoline (160 mg, yield 9.4%) as a yellow solid. LC-MS (ESI): mass calcd. for C10H7BrClN, 255.1/257.1; m/z found, 256.1/258.1 [M+H]+.
To a solution of tert-butyl (5-bromopyrazin-2-yl)(methyl)carbamate (900 mg, 3.1 mmol, 1.0 eq.) in 1,4-Dioxane (10mL) was added Pd(PPh3)4 (722 mg, 625 μmol, 0.2 eq.), LiCl (397 mg, 9.4 mmol, 3.0 eq.) and Sn2Bu6 (2.4 mL, 4.7 mmol, 1.5 eq.) under N2. The solution was stirred at 120° C. for 16 hours to give black solution. LCMS showed the reaction was completed. The resulting solution was diluted with 100 mL of water and extracted with EtOAc (3×100 mL). The combined organic layers were washed with brine (3×100 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜2% EtOAC in PE) to afford tert-butyl methyl(5-(tributylstannyl)pyrazin-2-yl)carbamate (250 mg, yield 15%) as a colorless oil. LC-MS (ESI): mass calcd. for C22H41N3O2Sn, 499.3; m/z found, 500.3 [M+H]+.
To a solution of tert-butyl methyl(5-(tributylstannyl)pyrazin-2-yl)carbamate (200 mg, 401 μmol, 1.0 eq.) in 1,4-Dioxane (10 mL) was added Pd(PPh3)4 (93 mg, 85 μmol, 0.2 eq.) and methyl 5-chloro-3-methylpyrazine-2-carboxylate (75 mg, 401 μmol, 1.0 eq.) under N2. The solution was stirred at 110° C. for 8 hours to give yellow solution. LCMS showed the reaction was completed. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (3×50 mL). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜50% EtOAC in PE) to afford methyl 5′-((tert-butoxycarbonyl)(methyl)amino)-6-methyl-[2,2′-bipyrazine]-5-carboxylate (100 mg, yield 66%) as a yellow solid. LC-MS (ESI): mass calcd. for C17H21N5O4, 359.4; m/z found, 360.4 [M+H]+.
To a solution of 8-bromo-2,3,4,5-tetrahydro-1H-benzo[b]azepine (500 mg, 2.2 mmol, 1 eq.) in 1,4-Dioxane (2 mL) was added 3-bromopiperidine-2,6-dione (849 mg, 4.4 mmol, 2 eq.) and DIEA (770 μL, 4.4 mmol, 2 eq.) at 25° C. The mixture was then stirred at 80° C. for 16 hours under N2 atmosphere. The resulting solution was diluted with 30 mL of water and extracted with EtOAc (30 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to give 3-(8-bromo-2,3,4,5-tetrahydro-1H-benzo[b]azepin-1-yl)piperidine-2,6-dione (150 mg, 20% yield) as a white solid. LC-MS (ESI): mass calcd. for C15H17BrN2O2, 336.0/338.0; m/z found, 337.2/339.2 [M+H]+.
To a solution of 5-bromo-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-7-yl trifluoromethanesulfonate (100 mg, 250 μmol, 1.0 eq.) in Toluene (3 mL) was added Pd2(dba)3 (23 mg, 25.0 μmol, 0.1 eq.), Xant-Phos (29 mg, 50.0 μmol, 0.2 eq.), 2-oxa-6-azaspiro[3.3]heptane (25 mg, 250 μmol, 1.0 eq.) and Cs2CO3 (163 mg, 500 μmol, 2.0 eq.). The mixture was stirred at 90° C. for 3 hours under N2 atmosphere. The resulting solution was diluted with 10 mL of H2O and extracted with EtOAc (8 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give 5-bromo-1,3-dimethyl-7-(2-oxa-6-azaspiro[3.3]heptan-6-yl)quinolin-2(1H)-one (40 mg, yield 46%) as a yellow solid. LC-MS (ESI): mass calcd. for C16H17BrN2O2, 348.0/350.0; m/z found,349.1/351.1 [M+H]+.
2-(3-fluoro-2-iodobenzofuran-4-yl)acetonitrile was prepared from 1-bromo-3-fluoro-2-iodobenzene to the procedures described in SKT-0018150, Steps A -J. 2-(3-fluoro-2-iodobenzofuran-4-yl)acetonitrile (500 mg, 0.02% yield over 10 steps) was obtained as a yellow solid. LC-MS (ESI): mass calcd. for C10H5FINO, 300.9; m/z found, 301.9 [M H]+.
A mixture of 2-(3-fluoro-2-iodobenzofuran-4-yl)acetonitrile (300 mg, 996.5 μmol, 1.0 eq.), tert-butyl prop-2-yn-1-ylcarbamate (464 mg, 2.9 mmol, 3.0 eq.), CuI (38 mg, 199 μmol, 0.2 eq.), TEA (1.1 mL, 8 mmol, 8.0 eq.) and Pd(PPh3)Cl2 (139 mg, 199 μmol, 0.2 eq.) in DMF (5 mL). The mixture was stirred at 25° C. for 4 hours under nitrogen. The mixture was diluted water and extracted with EtOAC (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0-30% EtOAc in PE) to afford tert-butyl (3-(4-(cyanomethyl)-3-fluorobenzofuran-2-yl)prop-2-yn-1-yl)carbamate (260 mg, yield 79%) as a yellow solid. LC-MS (ESI): mass calcd. for C18H17FN2O3, 328.1; m/z found, 329.1 [M H]+.
To a solution of tert-butyl (3-(4-(cyanomethyl)-3-fluorobenzofuran-2-yl)prop-2-yn-1-yl)carbamate (260 mg., 792 μmol, 1.0 eq.) in DMF (5 mL) was added K2CO3 (328 mg, 2.3 mmol, 3.0 eq.) and methyl acrylate (68 mg, 792 μmol, 1.0 eq.) at 25° C. The mixture was then stirred at 50° C. for 1 hour under nitrogen. The mixture was diluted water and extracted with EtOAC (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0-40% EtOAc in PE) to afford methyl 4-(2-(3-((tert-butoxycarbonyl)amino)prop-1-yn-1-yl)-3-fluorobenzofuran-4-yl)-4-cyanobutanoate (220 mg, yield 67%) as a yellow solid. LC-MS (ESI): mass calcd. for C22H23FN2O5, 414.1; m/z found, 415.1 [M H]+.
To a solution of methyl 4-(2-(3-((tert-butoxycarbonyl)amino)prop-1-yn-1-yl)-3-fluorobenzofuran-4-yl)-4-cyanobutanoate (220 mg, 530.8 μmol, 1.0 eq.) in Toluene (8 mL) was added indium (III) chloride (12 mg, 53.1 μmol, 0.1 eq.) and (E)-acetaldehyde oxime (94 mg, 1.5 mmol, 3.0 eq.) at 25° C. with stirring. The mixture was stirred at 110° C. for 2 hours. The mixture was diluted water and extracted with EtOAC (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0-40% EtOAc in PE) to give methyl 5-amino-4-(2-(3-((tert-butoxycarbonyl)amino)prop-1-yn-1-yl)-3-fluorobenzofuran-4-yl)-5-oxopentanoate (90 mg, yield 39%) as a white solid. LC-MS (ESI): mass calcd. for C22H25FN2O6, 432.1; m/z found, 433.1 [M H]*.
To a mixture of methyl 5-amino-4-(2-(3-((tert-butoxycarbonyl)amino)prop-1-yn-1-yl)-3-fluorobenzofuran-4-yl)-5-oxopentanoate (70 mg, 162 μmol, 1.0 eq.) in THF (8 mL) was added t-BuOK (36 mg, 324 μmol, 2.0 eq.) under nitrogen and stirred at room temperature for 30 mins. The mixture was diluted water and extracted with EtOAC (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0-40% EtOAc in PE) to afford tert-butyl (3-(4-(2,6-dioxopiperidin-3-yl)-3-fluorobenzofuran-2-yl)prop-2-yn-1-yl)carbamate (30 mg, yield 44%) as a yellow solid LC-MS (ESI): mass calcd. for C21H21FN2O5, 400.1; m/z found, 401.1 [M H]+.
To the solution of 5,7-dichloro-1,3-dimethyl-1,8-naphthyridin-2(1H)-one (500 mg, 2.0 mmol, 1 eq.) and TBAI (152 mg, 411 μmol, 0.2 eq.) in DMF (20 mL) was added Morpholine (269 mg, 269 μL, 3.0 mmol, 1.5 eq.) at 25° C. The mixture was stirred at 50° C. for 12 hours under N2 atmosphere. The resulting solution was diluted with 20 mL of water and extracted with EtOAc (3*20 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% DCM in EtOAc) to afford 5-chloro-1,3-dimethyl-7-morpholino-1,8-naphthyridin-2(1H)-one (80.0 mg, yield 13.2%) as a yellow solid. 1H NMR (400 MHz, DMSO-d6) δ 7.76 (d, J=1.2 Hz, 1H), 6.98 (s, 1H), 3.73-3.69 (m, 4H), 3.67-3.63 (m, 4H), 3.61 (s, 3H), 2.11 (d, J=1.0 Hz, 3H).
To a solution of 5-bromo-1-fluoro-3-methyl-2-nitrobenzene (1.5 g, 6.4 mmol, 1.0 eq.) and K2CO3 (3.5 g, 25.6 mmol, 4.0 eq.) in DMSO (20 mL) was added ethyl amine hydrochloride (1.1 g, 12.8 mmol, 2.0 eq.) at 25° C. The mixture was stirred at 120° C. for 2 hours under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 30 ml of water and extracted with EtOAc (3*30 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to afford 5-bromo-N-ethyl-3-methyl-2-nitroaniline (1.5 g, yield 90%) as a yellow solid. LC-MS (ESI): mass calcd. for C9H11BrN2O2, 258.0; m/z found, 259.1 [M+H]+.
To a solution of 5-bromo-N-ethyl-3-methyl-2-nitroaniline (1.5 g, 5.8 mmol, 1.0 eq.) and NH4Cl (3.1 g, 2.1 mmol, 10.0 eq.) in EtOH: H2O(5:1, 24 mL) was added Iron (3.2 g, 57.9 mmol, 10.0 eq.) at 25° C. The mixture was stirred at 90° C. for 2 hours under N2 atmosphere. The reaction was monitored by LCMS. The reaction was diluted with DCM: MeOH (10:1, 100 mL), and filtered through a pad of silica. The filter pad was washed with DCM: MeOH (10:1, 100 mL). The filtrates were concentrated under vacuum to give 5-bromo-N1-ethyl-3-methylbenzene-1,2-diamine (1.2 g, yield 91%) as a brown solid. LC-MS (ESI): mass calcd. for C9H13BrN2, 228.1; m/z found, 229.4 [M+H]+.
To a solution of 5-bromo-N1-ethyl-3-methylbenzene-1,2-diamine (1.2 g, 5.2 mmol, 1.0 eq.) in THF (15 mL) was added CDI (1.7 g, 10.5 mmol, 2.0 eq.) at 25° C. The mixture was stirred at 70° C. for 7 hours under N2 atmosphere. The reaction was monitored by LCMS. The reaction solution was filtered through filter paper to give 6-bromo-1-ethyl-4-methyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (1.2 g, crude) as a white solid. LC-MS (ESI): mass calcd. for C10H11BrN2O, 254.1; m/z found, 255.4 [M+H]+.
To a solution of 6-bromo-1-ethyl-4-methyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (1.2 g, 4.7 mmol, 1.0 eq.) and Sodium hydride (1.0 g, 9.4 mmol, 2.0 eq., w.t. =60% in oil) in DMF (15 mL) was added Methyl iodide (0.5 mL, 7.1 mmol, 1.5 eq.) at 0° C. The mixture was stirred at 25° C. for 1 hour under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 30 ml of water and extracted with EtOAc (3*30 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to give 6-bromo-1-ethyl-3,4-dimethyl-1,3-dihydro-2H-benzo[d]imidazole-2-one (1.1 g, yield 87%) as a yellow solid. LC-MS (ESI): mass calcd. for C11H13BrN2O, 268.0; m/z found, 269.1 [M+H]+.
To a flask containing 7-bromo-5-methoxy-3-methylbenzo[d]oxazol-2(3H)-one (700 mg, 2.71 mmol, 1 eq.), morpholine (473 mg, 5.42 mmol, 2 eq.), X-phos (129 mg, 271 μmol, 0.06 eq.) and Cs2CO3 (1.7 g, 5.42 mmol, 2 eq.) in 1,4-Dioxane (5 mL) was added Pd2(dba)3 (124 mg, 136 μmol, 0.05 eq.) at room temperature. The mixture was stirred at 100° C. for 6 hours under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 50 ml of water and extracted with EtOAc (3*50 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to afford 5-methoxy-3-methyl-7-morpholinobenzo[d]oxazol-2(3H)-one (600 mg, yield 84%) as a yellow solid. LC-MS (ESI): mass calcd. for C13H16N2O4, 264.1; m/z found, 265.2 [M+H]+.
To a solution of 5-methoxy-3-methyl-7-morpholinobenzo[d]oxazol-2(3H)-one (200 mg, 757 μmol, 1 eq.) in DCM (5 mL) was added BBr3 (569 mg, 2.27 mmol, 3 eq.) at 0° C. The mixture was stirred at 25° C. for 2 hours under N2 atmosphere. The reaction was monitored by LCMS. The mixture was dropwise added into MeOH (10 mL) and concentrated in vacuum. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to afford 5-hydroxy-3-methyl-7-morpholinobenzo[d]oxazol-2(3H)-one (160 mg, yield 84%) as a white solid. LC-MS (ESI): mass calcd. for C12H14N2O4, 250.1; m/z found, 251.2 [M+H]+.
To a solution of 5-hydroxy-3-methyl-7-morpholinobenzo[d]oxazol-2(3H)-one (160 mg, 639 μmol, 1 eq.) and TEA (174 μL, 1.28 mmol, 2 eq.) in DCM (5 mL) was added Tf2O (234 mg, 831 μmol, 1.3 eq.) at 0° C. The mixture was stirred at 25° C. for 2 hours under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 50 ml of water and extracted with EtOAc. The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to afford 3-methyl-7-morpholino-2-oxo-2,3-dihydrobenzo[d]oxazol-5-yl trifluoromethanesulfonate (170 mg, yield 70%) as a white solid. LC-MS (ESI): mass calcd. for C13H13F3N2O6S, 382.0; m/z found, 383.1 [M+H]+.
To a solution of Zn (2.5 g, 38.8 mmol, 8 eq.),1,3-dioxoisoindolin-2-yl tetrahydro-2H-pyran-4-carboxylate (1.3 g, 4.9 mmol, 1 eq.),6-bromo-4-iodo-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (1.8 g, 4.9 mmol, 1 eq.) and (biby)2Ni2(u-Cl)2Cl2(H2O2)2 (311 mg, 485 μmol, 0.1 eq.) in DMA (80 mL) was stirred at 0° C. Then TMSCl (1.6 g, 14.6 mmol, 3 eq.) was added to this mixture. The mixture was stirred at 0° C. for 1 hour under N2 atmosphere. The resulting solution was diluted with 100 mL of water and extracted with EtOAc (100 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to give 6-bromo-1,3-dimethyl-4-(tetrahydro-2H-pyran-4-yl)-1,3-dihydro-2H-benzo[d]imidazol-2-one (300 mg, 19% yield) as a white solid. LC-MS (ESI): mass calcd. for C14H17BrN2O2, 324.0; m/z found, 325.2 [M+H]+.
To a solution of 3-iodoaniline (5.0 g, 22.8 mmol, 1 eq.) in EtOH (50 mL) was added methyl 3-oxocyclobutane-1-carboxylate (2.6 g, 20.5 mmol, 0.9 eq.) and trimethylsilanecarbonitrile (2.0 g, 20.5 mmol, 0.9 eq.). The reaction was stirred at 25° C. for 16 hours under N2. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (3* 100 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford methyl 3-cyano-3-((3-iodophenyl)amino)cyclobutane-1-carboxylate (6.0 g, yield 74%) as a white solid. LC-MS (ESI): mass calcd. for C13H13IN2O2, 356.0; m/z found, 357.0 [M+H]+.
To a solution of methyl 3-cyano-3-((3-iodophenyl)amino)cyclobutane-1-carboxylate (3.0 g, 8.4 mmol, 1 eq.) in Toluene (25 mL) was added Indium trichloride (186 mg, 842 μmol, 0.1 eq.) and (E)-acetaldehyde oxime (1.5 g, 25.3 mmol, 3 eq.). The reaction was stirred at 110° C. for 1 hour under N2. The resulting solution was concentrated under reduced pressure and purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford methyl 3-carbamoyl-3-((3-iodophenyl)amino)cyclobutane-1-carboxylate (1.8 g, yield 57.1%) as a yellow solid. LC-MS (ESI): mass calcd. for C13H15IN2O3, 374.0; m/z found, 375.0 [M+H]+.
To a solution of methyl 3-carbamoyl-3-((3-iodophenyl)amino)cyclobutane-1-carboxylate (1.8 g, 4.8 mmol, 1 eq.) in THF (20 mL) was added potassium 2-methylpropan-2-olate (1.6 g, 14.4 mmol, 3 eq.).The reaction was stirred at 25° C. for 1 hour under N2 The resulting solution was diluted with 50 ml of water and extracted with EtOAc (3*60 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford 1-((3-iodophenyl)amino)-3-azabicyclo[3.1.1]heptane-2,4-dione (280 mg, yield 17.0%) as a white solid. LC-MS (ESI): mass calcd. for C12H11IN2O2, 342.0; m/z found, 343.0 [M+H]+.
To a stirred mixture of (7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)boronic acid (1.2 g, 5.0 mmol, 1.2 eq.) and Pd2(dba)3 (765 mg, 835 μmol, 0.2 eq.) in DMF (8.0 mL) and Et3N (1.6 mL) was added 2-chloro-5-iodopyridine (1.0 g, 4.2 mmol, 1 eq.) and K2CO3 (1.7 g, 12.5 mmol, 3 eq.), the reaction mixture was stirred at 100° C. for 12 hours under CO atmosphere. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (3*80 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford the 6-(6-chloronicotinoyl)-4-isopropyl-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (0.2 g, yield 14%) as a yellow solid. LC-MS (ESI): mass calcd. for C18H18ClN3O2, 343.1; m/z found, 344.1 [M+H]+.
To a stirred mixture of 6-(6-chloronicotinoyl)-4-isopropyl-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (80 mg, 233 μmol, 1 eq.) and methyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate (35 mg, 256 μmol, 1.1 eq.) in 1,4-Dioxane (2 mL) and Water (200 μL) was added Pd2(dba)3 (43 mg, 46.5 μmol, 0.2 eq.) and K2CO3 (97 mg, 698 μmol, 3 eq.), the reaction mixture was stirred at 100° C. for 2 hours under the N2 atmosphere. The resulting solution was diluted with 50 ml of water and extracted with EtOAc (3* 15 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford methyl 5-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazole-5-carbonyl)-[2,3′-bipyridine]-6′-carboxylate (60.0 mg, yield 58.0%) as a yellow solid. LC-MS (ESI): mass calcd. for C25H24N4O4, 444.2; m/z found, 445.2 [M+H]+.
To a stirred mixture of methyl 5-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazole-5-carbonyl)-[2,3′-bipyridine]-6′-carboxylate (100 mg, 225 μmol, 1 eq.) in BAST (3 mL). The reaction mixture was stirred at 90° C. for 3 hours. The mixture was quenched with aq. NaHCO3 (30 mL) and diluted with 30 ml of water and extracted with DCM (3*30 mL).
The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-20% EtOAc in PE) to afford methyl 5-(difluoro(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)methyl)-[2,3′-bipyridine]-6′-carboxylate (10.0 mg, yield 9.5%) as a yellow solid. LC-MS (ESI): mass calcd. for C25H24F2N4O3, 466.2; m/z found, 467.2 [M+H]+.
To the solution of methyl 5-(difluoro(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)methyl)-[2,3′-bipyridine]-6′-carboxylate (10 mg, 21.4 μmol, 1 eq.) in THF (3 mL) was added the solution of lithium hydroxide (770 g, 32.2 μmol, 1.5 eq.) in H2O (750 μL) and stirred at 25° C. for 30 min. The reaction was monitored by LCMS. The resulting solution was dried over anhydrous sodium sulfate and concentrated under reduced pressure to afford the product 5-(difluoro(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)methyl)-[2,3′-bipyridine]-6′-carboxylic acid (10 mg, yield, crude) as a Li salt. LC-MS (ESI): mass calcd. for C24H22F2N4O3, 452.2; m/z found, 453.1 [M+H]+.
To a flask containing 5,7-dichloro-1,3-dimethyl-1,6-naphthyridin-2(1H)-one (1 g, 4.11 mmol, 1 eq.), methyl 5-(8-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoquinolin-3-yl)picolinate (1.6 g, 4.11 mmol, 1 eq.) and K2CO3 (1.7 g, 12.3 mmol, 3 eq.) in 1,4-Dioxane (10 mL) and H2O(1 mL) was added Pd(dppf)Cl2 (602 mg, 823 μmol, 0.2 eq.) at 25° C. The mixture was stirred at 100° C. for 2 hours under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 50 ml of water and extracted with EtOAc (3*50 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford methyl 5-(8-(7-chloro-1,3-dimethyl-2-oxo-1,2-dihydro-1,6-naphthyridin-5-yl)isoquinolin-3-yl)picolinate (800 mg, yield 41%) as a brown solid. LC-MS (ESI): mass calcd. for C26H19ClN4O3, 471.1; m/z found, 472.2 [M+H]+.
To the solution of methyl 5-(5-(7-chloro-1,3-dimethyl-2-oxo-1,2-dihydro-1,6-naphthyridin-5-yl)-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinate (50 mg, 105 μmol, 1 eq.) and 2-(3,6-dihydro-2H-pyran-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (44 mg, 210 μmol, 2 eq.) and K2CO3 (43.5 mg, 315 μmol, 3 eq.) in 1,4-Dioxane: H2O=10:1 (3 mL) was added Pd(dppf)Cl2 (8 mg, 10.5 μmol, 0.1 eq) at 25° C. The mixture was stirred at 100° C. for 2 hours under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 50 ml of water, then extracted with EtOAc (10 mL×3) and washed with brine (10 mL×3). The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to afford methyl 5-(5-(7-(3,6-dihydro-2H-pyran-4-yl)-1,3-dimethyl-2-oxo-1,2-dihydro-1,6-naphthyridin-5-yl)-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinate (40 mg, 73% yield) as a brown solid.
LC-MS (ESI): mass calcd. for C29H28N6O4, 524; m/z found, 525 [M+H+.
To the solution of methyl 5-(5-(7-(3,6-dihydro-2H-pyran-4-yl)-1,3-dimethyl-2-oxo-1,2-dihydro-1,6-naphthyridin-5-yl)-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinate (30 mg, 57.2 μmol, 1 eq.) in MeOH (4 mL) was added Pd/C (30 mg, w.t.=10%) at 25° C. The mixture was stirred at 50° C. for 3 hours under H2 atmosphere. The reaction was monitored by LCMS. The solid was filtered out. The filtrate was concentrated under vacuum to afford methyl 5-(5-(1,3-dimethyl-2-oxo-7-(tetrahydro-2H-pyran-4-yl)-1,2-dihydro-1,6-naphthyridin-5-yl)-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinate (28 mg, 93% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C29H30N6O4, 526; m/z found, 527 [M+H]+.
To a flask containing 7-bromo-4-fluorobenzofuran (1 g, 4.65 mmol, 1 eq.), EthylPotassiumMalonate (950 mg, 5.58 mmol, 1.2 eq.), BINAP (174 mg, 279 μmol, 0.06 eq.) and Allylpalladium(II)chloridedimer (34 mg, 93 mmol, 0.02 eq.) in 1,3,5-Trimethylbenzene (5 mL) was added DMAP (56 mg, 465 μmol, 0.1 eq.) at room temperature. The mixture was stirred at 140° C. for 16 hours under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 50 ml of water and extracted with EtOAc (3*50 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-5% EtOAc in PE) to afford ethyl 2-(4-fluorobenzofuran-7-yl)acetate (240 mg, yield 23%) as a yellow solid. LC-MS (ESI): mass calcd. for C12H11FO3, 222.0; m/z found, 223.1 [M+H]+.
To a solution of ethyl 2-(4-fluorobenzofuran-7-yl)acetate (240 mg, 1.08 mmol, 1 eq.) and acrylamide (307 mg, 4.32 mmol, 4 eq.) in DMF (5 mL) was added t-BuOK (121 mg, 1.08 mmol, 1 eq.) at 25° C. The mixture was stirred at 25° C. for 2 hours under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 50 ml of water and extracted with EtOAc (3*50 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to afford 3-(4-fluorobenzofuran-7-yl)piperidine-2,6-dione (200 mg, yield 75%) as a yellow solid. LC-MS (ESI): mass calcd. for C13H10FNO3, 247.0; m/z found, 248.2 [M+H]+.
To a solution of 3-(4-fluorobenzofuran-7-yl)piperidine-2,6-dione (200 mg, 800 μmol, 1 eq.) and NBS (144 mg, 800 μmol, 1 eq.) in MeCN (5 mL) was added 2 drops DMF at 25° C. The mixture was stirred at 80° C. for 16 hours under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 50 ml of water and extracted with EtOAc. The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to afford 3-(2-bromo-4-fluorobenzofuran-7-yl)piperidine-2,6-dione (50 mg, yield 19%) as a white solid. LC-MS (ESI): mass calcd. for C13H9BrFNO3, 325.0; m/z found, 326.1 [M+H]+.
A mixture of 4-bromo-1-methyl-1H-benzo[d]imidazole (3 g, 14.2 mmol, 1.0 eq.), 2,6-bis(benzyloxy)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (7.1 g, 17.1 mmol, 1.2 eq.), Cs2CO3 (11.6 g, 35.5 mmol, 2.5 eq.) and Pd(PPh3)2Cl2 (500 mg, 711 μmol, 0.1 eq.) in 1,4-Dioxane (50 mL)/Water (10 mL) was stirred at 90° C. for 16 hours under N2. The resulting solution was diluted with 20 mL of water and extracted with EtOAc (30 mL×3). The combined organic layers were washed with brine (20 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-60% EtOAc in PE) to give 4-(2,6-bis(benzyloxy)pyridin-3-yl)-1-methyl-1H-benzo[d]imidazole (4.2 g, yield of 70%) as a yellow solid
LC-MS (ESI): mass calcd. for C27H23N3O2, 421.18; m/z found, 422.3 [M+H]+.
To a mixture of 4-(2,6-bis(benzyloxy)pyridin-3-yl)-1-methyl-1H-benzo[d]imidazole (2.0 g, 4.74 mmol, 1.0 eq.) in EtOH (50 mL) was added Pd/C (505 mg, w.t--10%,) under H2. The reaction mixture was stirred at 50° C. using a H2 balloon for 16 hours to give black solution. The reaction mixture was filtrated and concentrated in vacuum to give 3-(1-methyl-1H-benzo[d]imidazol-4-yl) piperidine-2,6-dione (900 mg, yield of 78%) as white solid.
LC-MS (ESI): mass calcd. for C13H13N3O2, 243.10; m/z found, 244.3 [M+H]+.
To a solution of 3-(1-methyl-1H-benzo[d]imidazol-4-yl) piperidine-2,6-dione (1.0 g, 4.11 mmol, 1.0 eq.) in DCE (20 mL) was added 1-bromopyrrolidine-2,5-dione (878 mg, 4.93 mmol, 1.2 eq.) and stirred at 70° C. for 16 hours. The reaction was a concentrated in vacuum and purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to give 3-(2-bromo-1-methyl-1H-benzo[d]imidazol-4-yl) piperidine-2,6-dione (700 mg, 53% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C13H12BrN3O2, 321.01 323.01; m/z found, 322.3 324.3[M+H]+.
To a solution of 3-(2-bromo-1-methyl-1H-benzo[d]imidazol-4-yl)piperidine-2,6-dione (200 mg, 621 μmol, 1.0 eq.) in DMF (7 mL) was added CuI (24 mg, 124 μmol, 0.2 Eq.), TEA (628 mg, 6.21 mmol, 10 eq.), Cy3P (35 mg, 124 μmol, 0.2 eq.), Pd(PPh3)C12 (44 mg, 62.1 μmol, 0.1 eq.) and tert-butyl prop-2-yn-1-ylcarbamate (385 mg, 2.48 mmol, 4.0 eq.) in DMF (2 mL) and stirred at 80° C. for 48 hours. The reaction mixture was extracted with EtOAc (20 mL*3) and water (20 mL). The resulting solution was concentrated in vacuum to give a residue. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to give tert-butyl (3-(4-(2,6-dioxopiperidin-3-yl)-1-methyl-1H-benzo[d]imidazol-2-yl)prop-2-yn-1-yl)carbamate (40.0 mg, 6% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C21H24N4O4, 396.18; m/z found, 397.3 [M+H]+.
A mixture of tert-butyl (3-(4-(2,6-dioxopiperidin-3-yl)-1-methyl-1H-benzo[d]imidazol-2-yl) prop-2-yn-1-yl) carbamate (30 mg, 50.4 μmol, 1.0 eq.) in DCM (5 mL) was added TFA (1 mL) and stirred at 30° C. for 1 hour. The reaction was concentrated to give 3-(2-(3-aminoprop-1-yn-1-yl)-1-methyl-1H-benzo[d]imidazol-4-yl) piperidine-2,6-dione (15.0 mg, yield of 90%,) and direct use for the next step. LC-MS (ESI): mass calcd. for C16H16N4O2, 296.13; m/z found, 279.3 [M+H-17]+.
To a solution of 2-bromo-6-nitroaniline (5 g, 23. mmol, 1.0 eq.) in AcOH (50 mL) was added NIS (6.2 g, 27.6 mmol, 1.2 eq.) under N2. The solution was stirred at 50° C. for 16 hours to give yellow solution. TLC showed the reaction was completed. The solution was quenched water, filtered and concentrated to afford 2-bromo-4-iodo-6-nitroaniline (6.5 g, yield 78%) as a yellow solid. The product was no Ms signal. 1H NMR (400 MHz, DMSO-d6) δ 8.28 (d, J=2.0 Hz, 1H), 8.12 (t, J=1.6 Hz, 1H), 7.27 (s, 2H).
To a solution of 2-bromo-4-iodo-6-nitroaniline (6.5 g, 19 mmol, 1.0 eq.) in EtOH (50 mL) and Water (50 mL) was added NH4Cl (10 g, 190 mmol, 10.0 eq.) and iron (11 g, 190 mmol, 10.0 eq.) under N2. The solution was stirred at 80° C. for 3 hours to give black solution. LCMS showed the reaction was completed. The resulting solution was diluted with 200 mL of water and extracted with EtOAc (3×200 mL). The combined organic layers were washed with brine (3×200 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜50% EtOAc in PE) to afford 3-bromo-5-iodobenzene-1,2-diamine (5.6 g, yield 90%) as a yellow solid. LC-MS (ESI): mass calcd. for C6H6BrIN2, 311.9/313.9; m/z found, 312.9/314.9 [M+H]+.
To a solution of 3-bromo-5-iodobenzene-1,2-diamine (5 g, 16 mmol, 1.0 eq.) in AcOH (5 mL) and Water (50 mL) was added ethyl 2-oxopropanoate (3.7 g, 32 mmol, 2.0 eq.). The solution was stirred at 25° C. for 16 hours to give yellow solution. LCMS showed the reaction was completed. The solution was concentrated to afford 5-bromo-7-iodo-3-methylquinoxalin-2(1H)-one (2.3 g, yield 39%) and 8-bromo-6-iodo-3-methylquinoxalin-2(1H)-one (2.3 g, yield 39%) as a yellow solid. LC-MS (ESI): mass calcd. for C9H6BrIN2O, 364.1/366.1; m/z found, 365.1/367.1 [M+H]+.
To a solution of 5-bromo-7-iodo-3-methylquinoxalin-2(1H)-one (4.5 g, 12.3 mmol, 1.0 eq.) in DMF (50 mL) was added Cs2CO3 (6 g, 18.5 mmol, 1.5 eq.) and Mel (1.54 mL, 24.7 mmol, 2.0 eq.). The solution was stirred at 25° C. for 2 hours to give yellow solution. LCMS showed the reaction was completed. The resulting solution was diluted with 100 mL of water and extracted with EtOAc (3×100 mL). The combined organic layers were washed with brine (3×100 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜50% EtOAC in PE) to afford 5-bromo-7-iodo-1,3-dimethylquinoxalin-2(1H)-one (1 g, yield 20%) as a yellow solid. LC-MS (ESI): mass calcd. for C10H8BrIN2O, 378.2/380.2; m/z found, 379.2/381.2 [M+H]+.
To a solution of 5-bromo-7-iodo-1,3-dimethylquinoxalin-2(1H)-one (400 mg, 1.1 mmol, 1.0 eq.) in DMA (15 mL) was added TMSCl (401 μL, 3.2 mmol, 3.0 eq.), 1,3-dioxoisoindolin-2-yl tetrahydro-2H-pyran-4-carboxylate (436 mg, 1.6 mmol, 1.5 eq.), Zinc (552 mg, 8.4 mmol, 8.0 eq.) and (biby)2Ni2(u-C1)2C12(H2O2) (68 mg, 106 μmol, 0.1 eq.) at 0° C. The solution was stirred at 0° C. for 2 hours to give yellow solution. LCMS showed the reaction was completed. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (3×50 mL). The combined organic layers were washed with brine (3×50 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜50% EtOAC in PE) to afford 5-bromo-1,3-dimethyl-7-(tetrahydro-2H-pyran-4-yl)quinoxalin-2(1H)-one (45.0 mg, yield 12%) as a yellow solid. LC-MS (ESI): mass calcd. for C15H17BrN2O2, 336.0/338.0; m/z found, 337.0/339.0 [M+H]+.
To a mixture of 4-methylbenzo[b]thiophene (700 mg, 4.7 mmol, 1.0 eq.) in THF (10 mL) was added n-BuLi (2.2 mL, 5.7 mmol, 2.5 M in hexane) at −78° C. The mixture was stirred at −78° C. for 30 minutes. Then added 12 (1.4 g, 5.7 mmol, 1.2 eq.) and stirred at −78° C. for 1 hour under N2 atmosphere. The mixture was quenched NH4Cl solution and extracted with EtOAc (30 mL×3). The combined organic layers were washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to afford 2-iodo-4-methylbenzo[b]thiophene (1.0 g, 77% yield) as a yellow oil. The product was no Ms signal.
1H NMR (400 MHz, DMSO-d6) δ 7.81 (d, J=2.8 Hz, 1H), 7.76 (d, J=7.0 Hz, 1H), 7.24 (td, J=7.9, 3.4 Hz, 1H), 7.17-7.13 (m, 1H), 2.55 (d, J=2.4 Hz, 3H).
The mixture of the 2-do-4-methylbenzo[b]thiophene (700 mg, 2.5 mmol, 1.0 eq.) and NBS (682 mg, 3.8 mmol, 1.5 eq.) in CCl4 (8 mL) was added BPO (124 mg, 511 μmol, 0.2 eq.) at room temperature. The mixture was stirred at 85° C. for 3 hours under N2 atmosphere. The resulting solution was diluted with 40 mL of H2O and extracted with DCM (30 mL×3). The combined organic layers were washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to afford 4-(bromomethyl)-2-iodobenzo[b]thiophene (400 mg, 39% yield) as white solid. The product was no Ms signal.
1H NMR (400 MHz, DMSO-d6) δ 8.00 (d, J=8.0 Hz, 1H), 7.92 (s, 1H), 7.54 (d, J=7.3 Hz, 1H), 7.42 (t, J=7.7 Hz, 1H), 5.12 (s, 2H).
To a solution of TMSCN (96 μL, 735 μmol, 1.5 eq.) in MeCN (5 mL) was added TBAF (882 μL, 882 μmol,1.0 M in THF,) and 2-bromo-4-(bromomethyl)benzo[b]thiophene (150 mg, 490 μmol, 1.5 eq.) at 0° C. The mixture was stirred at room temperature for 2 hours under N2 atmosphere. The resulting solution was diluted with 30 mL of H2O and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to afford 4-(bromomethyl)-2-iodobenzo[b]thiophene (100 mg, 79% yield) as a yellow oil. The product was no Ms signal. 1H NMR (400 MHz, DMSO-d6) δ 8.02-7.89 (m, 1H), 7.80 (s, 1H), 7.41 (d, J=6.6 Hz, 2H), 4.35 (s, 2H).
To a solution of 2-(2-bromobenzo[b]thiophen-4-yl)acetonitrile (70 mg, 278 μmol, 1.0 eq.) in MeOH (6 mL) was added SOCl2 (2.0 mL, 278 μmol) slowly. The reaction was stirred at 85° C. for 20 minutes. The mixture was concentrated and diluted with NaHCO3 solution, extracted with EtOAc (30 mL×3) and the layers were separated. The organic layers were washed with brine (40 mL), dried over Na2SO4 filtered and concentrated. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to afford methyl 2-(2-bromobenzo[b]thiophen-4-yl)acetate (55 mg, 68% yield) as a yellow oil. The product was no MS signal. 1H NMR (400 MHz, DMSO-d6) δ 7.84 (t, J=14.6 Hz, 1H), 7.68 (d, J=2.3 Hz, 1H), 7.33 (dd, J=7.9, 2.9 Hz, 1H), 7.26 (d, J=7.3 Hz, 1H), 4.02 (d, J=2.2 Hz, 2H), 3.68 (m, 3H).
To a solution of methyl 2-(2-bromobenzo[b]thiophen-4-yl)acetate (50 mg, 175 μmol, 1.0 eq.) and acrylamide (37 mg, 525 μmol, 3.0 eq.) in DMF (4 mL) was added t-BuOK (23.6 mg, 210 μmol, 1.2 eq.) at 0° C. under N2. The reaction was stirred at room temperature for 1 hour. The mixture was diluted with 2 N HCl solution, extracted with EtOAc (20 mL×3) and the layers were separated. The organic layer was washed with brine (20 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to afford 3-(2-bromobenzo[b]thiophen-4-yl)piperidine-2,6-dione (30 mg, 48% yield) as a white solid. LC-MS (ESI): mass calcd. for C13H10BrNO2S, 322.96; m/z found, 323.96 [M+H]+.
To a mixture of 1-bromo-3-fluoro-5-iodobenzene (20 g, 66.5 mmol, 1 eq.) in DMA (300 mL) was added Chlorotrimethylsilane (25.2 mL, 199 mmol, 3 eq.) and 1,3-dioxoisoindolin-2-yl tetrahydro-2H-pyran-4-carboxylate (22 g, 79.8 mmol, 1.2 eq.) and zinc (34.8 g, 532 mmol, 8 eq.) and (biby)2Ni2(u-Cl)2Cl2(H2O2) (4.3 g, 6.7 mmol, 0.1 eq.) under N2. The mixture was stirred at 0° C. for 1 hour. The resulting solution was diluted with 500 mL of H2O and extracted with EtOAc (200 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to afford 4-(3-bromo-5-fluorophenyl)tetrahydro-2H-pyran (8.0 g, 46% yield) as a yellow oil. No Ms signal.
1H NMR (400 MHz, DMSO-d6) δ 7.12-7.06 (m, 2H), 6.96-6.88 (m, 1H), 3.71-3.66 (m, 2H), 3.19-3.13 (m, 2H), 2.60-2.53 (m, 1H), 1.46-1.40 (m, 4H).
To a mixture of 4-(3-bromo-5-fluorophenyl)tetrahydro-2H-pyran (8 g, 30.9 mmol, 1 eq.) in THF (80 mL) was added LDA (30 mL, 34 mmol, 1.1 eq., 1 M in THF) under N2. The mixture was stirred at −78° C. for 30 mins, then added DMF (2.9 mL, 37 mmol, 1.9 eq.) was stirred at −78° C. for 30 mins. The resulting solution was diluted with 200 mL of H2O and extracted with EtOAc (100 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to afford 2-bromo-6-fluoro-4-(tetrahydro-2H-pyran-4-yl)benzaldehyde (8 g, 86% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C12H12BrFO2, 287; m/z found, 287/289 [M+H]+.
To a solution of 2-bromo-6-fluoro-4-(tetrahydro-2H-pyran-4-yl)benzaldehyde (1 g, 3.5 mmol, 1 eq.) in THF (10 mL) was added Magnesium bromomethyl (1.2 mL, 10.4 mmol, 3 eq.). The reaction mixture was stirred at −65° C. for 2 hours. The resulting solution was diluted with 50 mL of H2O and extracted with EtOAc (10 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to afford 1-(2-bromo-6-fluoro-4-(tetrahydro-2H-pyran-4-yl)phenyl)ethan-1-ol (900 mg, 85.2% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C13H16BrFO2, 302; m/z found, 285/287 [M+H−18]+.
To a solution of 1-(2-bromo-6-fluoro-4-(tetrahydro-2H-pyran-4-yl)phenyl)ethan-1-ol (900 mg, 3 mmol, 1 eq.) in DCM (15 mL) was added DMP (1.9 g, 4.5 mmol, 1.2 eq.). The reaction mixture was stirred at 0° C. for 4 hours. The resulting solution was diluted with 50 mL of H2O and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to afford 1-(2-bromo-6-fluoro-4-(tetrahydro-2H-pyran-4-yl)phenyl)ethan-1-one (800 mg, 90% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C13H14BrFO2, 301; m/z found, 301/303 [M+H]+.
To a stirred solution of 1-(2-bromo-6-fluoro-4-(tetrahydro-2H-pyran-4-yl)phenyl)ethan-1-one (800 mg, 2.7 mmol, 1 eq.) and MeNH2 (3 mL, 3.5 mmol, 1.3 eq. 1.5 mmol in EtOH) and K2CO3 (550 mg, 4 mmol, 1.5 eq.) in DMF (10 mL) was stirred at 90° C. for 16 hours under N2. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure to give 1-(2-bromo-6-(methylamino)-4-(tetrahydro-2H-pyran-4-yl)phenyl)ethan-1-one (300 mg, 36% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C14H18BrNO2, 312; m/z found, 312/314 [M+H]+
To a stirred solution of 1-(2-bromo-6-(methylamino)-4-(tetrahydro-2H-pyran-4-yl)phenyl)ethan-1-one (130 mg, 416 μmol, 1 eq.) and ethyl 2-(diethoxyphosphoryl)acetate (187 mg, 833 μmol, 2 eq.) and K2CO3 (172 mg, 1.3 mmol, 3 eq.) in DMF (20 mL) was stirred at 100° C. for 16 hours under N2. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-80% EtOAc in PE) to give 5-bromo-1,4-dimethyl-7-(tetrahydro-2H-pyran-4-yl)quinolin-2(1H)-one (30.0 mg, 21% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C16H18BrNO2, 336; m/z found, 336/338 [M+H]+.
To a solution of tert-butyl (2-bromopyrimidin-5-yl)(methyl)carbamate (300 mg, 1 mmol, 1.0 eq.) in 1,4-Dioxane (3 mL) was added 1,1,1,2,2,2-hexamethyldistannane (510 mg, 1.5 mmol, 1.5 eq.), Pd(PPh3)4 (120 mg, 104 μmol, 0.1 eq.) at 25° C. The mixture was then stirred at 125° C. for 2 hours under N2. The resulting solution was added methyl 5-chloro-3-methylpyrazine-2-carboxylate (194 mg, 1 mmol, 1.0 eq.) at 125° C. under N2. Then the mixture was stirred at 125° C. for 16 hours under N2 atmosphere. Then the mixture was concentrated under vacuum. The residue was purified on a silica gel chromatography (100-200 mesh silica gel, 0-60% EtOAc in PE) to give methyl 5-(5-((tert-butoxycarbonyl)(methyl)amino)pyrimidin-2-yl)-3-methylpyrazine-2-carboxylate (60 mg, yield 16%) as a yellow solid. LC-MS (ESI): mass calcd. for C17H21N5O4, 359.2; m/z found, 360.2 [M+H]+.
To a solution of 4-chlorothieno[3,2-c]pyridine (5.0 g, 29.5 mmol, 1.0 eq.) in THE (50 mL) was added LDA (17 ml, 35.4 mmol, 1.2 eq., 2 M in THF) at −78° C. The mixture was stirred at −78° C. for 0.5 hours under N2 atmosphere. Then 12(9.0 g, 35.4 mmol, 1.2 eq.) was added this mixture and stirred at −78° C. for 0.5 hours under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 60 ml of sat. NH4Cl and extracted with EtOAc (3*60 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-40% EtOAc in PE) to afford 4-chloro-2-iodothieno[3,2-c]pyridine (8.5 g, yield 98%) as a yellow solid.
LC-MS (ESI): mass calcd. for C7H3ClINS, 295.1; m/z found, 296.3 [M+H]+.
To a solution of 4-chloro-2-iodothieno[3,2-c]pyridine (6.0 g, 20.3 mmol, 1.0 eq.) and K2CO3 (8.4 g, 60.9 mmol, 3.0 eq.) in DMSO (60 mL) was added tert-butyl 2-cyanoacetate (2.9 g, 20.3 mmol, 1.0 eq.) at 25° C. The mixture was stirred at 120° C. for 3 hours under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 50 ml of water and extracted with EtOAc (3*40 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-80% EtOAc in PE) to afford tert-butyl 2-cyano-2-(2-iodothieno[3,2-c]pyridin-4-yl)acetate (2.1 g, yield 26%) as a yellow solid. LC-MS (ESI): mass calcd. for C14H13IN2O2S, 400.1; m/z found, 401.4 [M+H]+.
To a solution of tert-butyl 2-cyano-2-(2-iodothieno[3,2-c]pyridin-4-yl)acetate (1.0 g, 2.5 mmol, 1.0 eq.) in DCM (6 mL) was added TFA (2 ml) at 25° C. The mixture was stirred at 25° C. for 1 hour. The reaction was monitored by LCMS. The resulting solution was diluted with 30 ml of water and extracted with EtOAc (3*30 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-20% EtOAc in PE) to afford 2-(2-iodothieno[3,2-c]pyridin-4-yl)acetonitrile (330 mg, yield 44%) as a white solid. LC-MS (ESI): mass calcd. for C9H5IN2S, 300.1; m/z found, 301.4 [M+H]+.
To a solution of 2-(2-iodothieno[3,2-c]pyridin-4-yl)acetonitrile (330 mg, 1.1 mmol, 1.0 eq.) and K2CO3 (456 mg, 3.3 mmol, 3.0 eq.) in DMF (5 mL) was added ethyl 3-bromopropanoate (199 mg, 1.1 mmol, 1.0 eq.) at 25° C. The mixture was stirred at 50° C. for 0.5 hours under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 20 ml of water and extracted with EtOAc (3*20 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give productethyl 4-cyano-4-(2-iodothieno[3,2-c]pyridin-4-yl)butanoate (160 mg, yield 36%) as a yellow oil. LC-MS (ESI): mass calcd. for C14H13IN2O2S, 400.1; m/z found, 401.4 [M+H]+.
To a solution of 4-cyano-4-(2-iodothieno[3,2-c]pyridin-4-yl)butanoate (160 mg, 0.4 mmol, 1.0 eq.) in AcOH (4 mL) was added con. H2SO4 (0.4 mL) at 25° C. The mixture was stirred at 100° C. for 1 hour under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 20 ml of sat. NaHCO3 and extracted with EtOAc (3*10 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give 3-(2-iodothieno[3,2-c]pyridin-4-yl)piperidine-2,6-dione (120 mg, yield 81%) as a white solid.
LC-MS (ESI): mass calcd. for C14H13IN2O2S, 400.1; m/z found, 401.4 [M+H]+.
A mixture of 7-bromo-5-methoxy-1,3-dimethylquinolin-2(1H)-one (600 mg, 2.1 mmol, 1.0 eq.), 2-(3,6-dihydro-2H-pyran-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxa borolane (1.3 g, 6.3 mmol, 3.0 eq.), Pd(dppf)Cl2 (233 mg, 319 μmol, 0.15 eq.) and Na2CO3 (676 mg, 6.3 mmol, 3.0 eq.) in 1,4-Dioxane (10 mL) and H2O(1 mL) was stirred at 100° C. for 3 hours under N2. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc and 10% DCM in PE) to give 7-(3,6-dihydro-2H-pyran-4-yl)-5-methoxy-1,3-dimethylquinolin-2(1H)-one (400 mg, 66% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C17H19NO3, 285.14; m/z found, 286 [M+H]+.
To a solution of 7-(3,6-dihydro-2H-pyran-4-yl)-5-methoxy-1,3-dimethylquinolin-2(1H)-one (100 mg, 350 μmol, 1.0 eq.) and Mn(dpm)3 (63.5 mg, 105 μmol, 0.3 eq.) in IPA (5.00 mL) and DCM (0.60 mL) added PhSiH3 (49.2 mg, 456 μmol, 1.3 eq.) at 0° C. under 02. The mixture was stirred at 25° C. for 6 hours under 02. The resulting solution was diluted with 50 mL of water and extracted with DCM (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to give 7-(4-hydroxytetrahydro-2H-pyran-4-yl)-5-methoxy-1,3-dimethylquinolin-2(1H)-one (100 mg, 94% yield) as a brown solid. LC-MS (ESI): mass calcd. for C17H21NO4, 303.15; m/z found, 304 [M+H]+.
A mixture of 7-(4-hydroxytetrahydro-2H-pyran-4-yl)-5-methoxy-1,3-dimethylquinolin-2(1H)-one (80 mg, 264 μmol, 1.0 eq.) and DAST (66 μL, 527 μmol, 2.0 eq.) in DCM (3 mL) was stirred at 0° C. for 3 hours under N2. The resulting solution was quenched with sat. NaHCO3 and extracted with DCM (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure to give 7-(4-fluorotetrahydro-2H-pyran-4-yl)-5-methoxy-1,3-dimethylquinolin-2(1H)-one (80 mg, 99% yield) as a white solid. LC-MS (ESI): mass calcd. for C17H20FNO3, 305.14; m/z found, 306 [M+H]+.
A mixture of 7-(4-fluorotetrahydro-2H-pyran-4-yl)-5-methoxy-1,3-dimethylquinolin-2(1H)-one (60 mg, 196 μmol, 1.0 eq.) and sodium ethanethiolate (165 mg, 2.0 mmol, 10 eq.) in DMF (3 mL) was stirred at 100° C. for 2 hours under N2. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (10 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to give 7-(4-fluorotetrahydro-2H-pyran-4-yl)-5-hydroxy-1,3-dimethylquinolin-2(1H)-one (20 mg, 35% yield) as a white solid. LC-MS (ESI): mass calcd. for C16H18FNO3, 291.13; m/z found, 292 [M+H]+.
To a solution of 7-(4-fluorotetrahydro-2H-pyran-4-yl)-5-hydroxy-1,3-dimethylquinolin-2(1H)-one (30 mg, 103 μmol, 1.0 eq.), Pyridine (33 μL, 412 μmol, 4.0 eq.) in DCM (15 mL) was added trifluoromethanesulfonic anhydride (58 mg, 206 μmol, 2.0 eq.) at 0° C.
The mixture was stirred at 0° C. for 2 hours under N2. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to give 7-(4-fluorotetrahydro-2H-pyran-4-yl)-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl trifluoromethanesulfonate (20 mg, 46% yield) as a white solid._LC-MS (ESI): mass calcd. for C17H17F4NO5S, 423.08; m/z found, 424 [M+H]+.
To a solution of ethyl 2-(5-bromobenzofuran-3-yl)acetate (200 mg, 706 μmol, 1.0 eq.) in THF (6 mL) was added LiHMDS (1.1 mL, 1.1 mmol, 1.5 eq., 1 M in THF) at −78° C. The reaction was stirred at −78° C. for 30 minutes. Then Mel (120 mg, 848 μmol, 1.2 eq.) was added into the reaction. The mixture was stirred at rt for 2 hours. TLC showed no raw material. Then the mixture was quenched with sat. NH4Cl. The resulting solution was diluted with 50 ml of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The residue was purified on a silica gel chromatography (100-200 mesh silica gel, 0-60% EtOAc in PE) to give ethyl 2-(5-bromobenzofuran-3-yl) propanoate (130 mg, yield 62%) as a yellow solid. LC-MS (ESI): mass calcd. for C13H13BrO3, 296.0; m/z found, 297.0/299.0 [M+H]+.
To a solution of methyl 5-chloropyrazine-2-carboxylate (1 g, 5.8 mmol, 1.0 eq.) in Toluene (10 mL) was added Pd(PPh3)4 (670 mg, 579 μmol, 0.1 eq.), TBAI (2.4 g, 6.4 mmol, 1.1 eq.) and Sn2Me6 (1.8 mL, 8.7 mmol, 1.5 eq.) under N2. The solution was stirred at 110° C. for 3 hours to give black solution. LCMS showed the reaction was completed. The resulting solution was diluted with 100 mL of water and extracted with EtOAc (3×100 mL). The combined organic layers were washed with brine (100 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0%-50% EtOAc in PE) to afford methyl 5-(trimethylstannyl)pyrazine-2-carboxylate (150 mg, yield 8.2%) as a colorless oil. LC-MS (ESI): mass calcd. for C9H14N2O2Sn, 300.9; m/z found, 301.9 [M+H]+.
To a solution of methyl 5-(trimethylstannyl)pyrazine-2-carboxylate (130 mg, 432 μmol, 3.0 eq.) in 1,4-Dioxane (5 mL) was added Pd(dtbpf)Cl2 (19 mg, 28.8 μmol, 0.2 eq.) and 5-(2-chloro-7,8-dihydropyrido[3,2-d]pyrimidin-5(6H)-yl)-1,3-dimethyl-7-(tetrahydro-2H-pyran-4-yl)quinolin-2(1H)-one (61 mg, 144 μmol, 1.0 eq.) under N2. The solution was stirred at 100° C. for 2 hours to give black solution. LCMS showed the reaction was completed. The resulting solution was diluted with 50 mL of KF solution and extracted with EtOAc (3×50 mL). The combined organic layers were washed with brine (3×50 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0%-100% EtOAc in PE) to afford methyl 5-(5-(1,3-dimethyl-2-oxo-7-(tetrahydro-2H-pyran-4-yl)-1,2-dihydroquinolin-5-yl)-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)pyrazine-2-carboxylate (57 mg, yield 71%) as a yellow solid. LC-MS (ESI): mass calcd. for C29H30N6O4, 526.6; m/z found, 527.6 [M+H]+.
To a solution of methyl 5-(8-(7-chloro-1,3-dimethyl-2-oxo-1,2-dihydro-1,6-naphthyridin-5-yl)isoquinolin-3-yl)picolinate (200 mg, 425 μmol, 1.0 eq.) in i-PrOH (15 mL)was added sodium propan-2-olate (140 mg, 1.7 mmol, 4.0 eq.). The mixture was stirred at 100° C. for 12 hours. The mixture was purified by Prep-HPLC to afford methyl 5-(8-(7-isopropoxy-1,3-dimethyl-2-oxo-1,2-dihydro-1,6-naphthyridin-5-yl)isoquinolin-3-yl)picolinate (20.0 mg, 9% yield) as a white solid. LC-MS (ESI): mass calcd. for C29H26N4O4, 494.2; m/z found, 495.2[M+H]+.
To a solution of 1,3-dimethyl-2-oxo-7-(tetrahydro-2H-pyran-4-yl)-2,3-dihydro-1H-benzo[d]imidazol-5-yltrifluoromethanesulfonate (200 mg, 507 μmol, 1.0 eq.) in Tol (3 mL) was added tert-butyl methylcarbamate (86 mg, 659 μmol, 1.3 eq.), Cs2CO3 (496 mg, 1.5 mmol, 3.0 eq.), X-Phos (48 mg, 101 μmol, 0.2 eq.) and Pd2(dba)3 (93 mg, 101 μmol, 0.2 eq.) at 25° C. The mixture was stirred at 100° C. for 16 hours under N2. The reaction was monitored by LCMS. The resulting solution was diluted with 30 ml of water, then extracted with EtOAc (3×30 mL) and washed with brine. The combined organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was purified on a silica gel chromatography (100-200 mesh silica gel, 0-60% EtOAc in PE) to give tert-butyl (1,3-dimethyl-2-oxo-7-(tetrahydro-2H-pyran-4-yl)-2,3-dihydro-1H-benzo[d]imidazol-5-yl)(methyl)carbamate (150 mg, yield 79%) as a yellow solid. LC-MS (ESI): mass calcd. for C20H29N3O4, 375.2; m/z found, 376.2 [M+H]+.
To a solution of tert-butyl (1,3-dimethyl-2-oxo-7-(tetrahydro-2H-pyran-4-yl)-2,3-dihydro-1H-benzo[d]imidazol-5-yl)(methyl)carbamate (150 mg, 399 μmol, 1.0 eq.) in DCM (3 mL) was added HCl (3 mL, 4M in 1,4-Dioxane) at 25° C. The combined organic layer was concentrated under reduced pressure to give 1,3-dimethyl-6-(methylamino)-4-(tetrahydro-2H-pyran-4-yl)-1,3-dihydro-2H-benzo[d]imidazol-2-one (100 mg, yield 91%) as a yellow solid. LC-MS (ESI): mass calcd. for C15H21N3O2, 275.2; m/z found, 276.2 [M+H]+.
To a solution of 1,3-dimethyl-6-(methylamino)-4-(tetrahydro-2H-pyran-4-yl)-1,3-dihydro-2H-benzo[d]imidazol-2-one (80 mg, 291 μmol, 1.0 eq.) in Toluene (3 mL) was added 3,6-dichloro-1,2,4-triazine (57 mg, 378 μmol, 1.3 eq.), Cs2CO3 (284 mg, 872 μmol, 3.0 eq.), X-Phos (28 mg, 58 μmol, 0.2 eq) and Pd2(dba)3 (53 mg, 58 μmol, 0.2 eq) at 25° C. The mixture was then stirred at 60° C. for 2 hours under N2. LCMS showed the reaction was completed. The mixture was diluted with aq. NH4Cl and H2O, extracted with EtOAc (20 mL×3) and the layers were separated. The organic layer was washed with brine, dried over Na2SO4, filtered and concentrated. The product was purified by flash chromatography (100-200 mesh silica gel, 0-100% EA in PE) to afford 6-((3-chloro-1,2,4-triazin-6-yl)(methyl)amino)-1,3-dimethyl-4-(tetrahydro-2H-pyran-4-yl)-1,3-dihydro-2H-benzo[d]imidazol-2-one (60 mg, yield 53%) as a yellow solid. LC-MS (ESI): mass calcd. for C18H21ClN6O2, 388.1; m/z found, 389.1 [M+H]+.
To a solution of ethyl 2-bromo-2,2-difluoroacetate (33.7 g, 166 mmol, 2.5 eq.) in DMSO (300 mL) was added Cu (12.7 g, 199 mmol, 3.0 eq.) at 25° C. The mixture was stirred at 25° C. for 1 hour under N2 atmosphere, after which 1-bromo-2-fluoro-3-iodobenzene (20 g, 66.5 mmol, 1.0 eq.) was added. The resulting reaction mixture was stirred at 70° C. for 3 hours under N2 atmosphere. The resulting solution was diluted with 300 mL of water and extracted with EtOAc (3×300 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to give ethyl 2-(3-bromo-2-fluorophenyl)-2,2-difluoroacetate (15.7 g, 80% yield) as a colorless oil. No Ms signal. 1HNMR (400 MHz, DMSO-d6) δ 8.01 (t, J=7.4 Hz, 1H), 7.77-7.71 (m, 1H), 7.38 (t, J=8.0 Hz, 1H), 4.38 (q, J=7.1 Hz, 2H), 1.24 (t, J=7.1 Hz, 3H).
To a solution of ethyl 2-(3-bromo-2-fluorophenyl)-2,2-difluoroacetate (15.7 g, 52.8 mmol, 1.0 eq.) in THF (150 mL) was added Lithium borohydride (19.8 mL, 79.3 mmol, 1.5 eq., 4N in THF) at 0° C. The mixture was stirred at 50° C. for 2 hours. The resulting solution was diluted with 100 mL of cold water and extracted with EtOAc (3×100 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give 2-(3-bromo-2-fluorophenyl)-2,2-difluoroethan-1-ol (12.7 g, 94% yield) as a colorless oil. No MS signal. 1H NMR (400 MHz, CDCl3-d6) 6 7.70 (t, J=7.2 Hz, 1H), 7.55 (t, J=7.2 Hz, 1H), 7.15 (t, J=7.9 Hz, 1H), 4.13 (td, J=13.5, 0.9 Hz, 2H).
To a solution of 2-(3-bromo-2-fluorophenyl)-2,2-difluoroethan-1-ol (12.7 g, 50 mmol, 1.0 eq.) in THF (150 mL) was added t-BuOK (16.9 g, 150 mmol, 3.0 eq.) and 18-Crown-6 (6.6 g, 25 mmol, 0.5 eq.) at 25° C. The mixture was stirred at 80° C. for 5 hours. The resulting solution was diluted with 100 mL of water and extracted with EtOAc (3×100 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to give 7-bromo-3-fluorobenzofuran (6.1 g, 57% yield) as a colorless oil. No Ms signal. 1H NMR (400 MHz, DMSO-d6) δ 8.44 (d, J=4.4 Hz, 1H), 7.77-7.66 (m, 2H), 7.36-7.30 (m, 1H).
To a solution of 7-bromo-3-fluorobenzofuran (3 g, 14 mmol, 1.0 eq.) in DMF (30 mL): MeOH (30 mL) was added TEA (9.7 mL, 69.8 mmol, 5.0 eq.) and Pd(dppf)Cl2 (2 g, 2.8 mmol, 0.2 eq.) at 25° C. The mixture was stirred at 80° C. for 5 hours under CO atmosphere. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (3×50 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-40% EtOAc in PE) to give methyl 3-fluorobenzofuran-7-carboxylate (2 g, 74% yield) as a white solid. No Ms signal. 1H NMR (400 MHz, DMSO-d6) δ 8.43 (d, J=4.3 Hz, 1H), 8.01-7.97 (m, 2H), 7.49 (t, J=7.7 Hz, 1H), 3.93 (s, 3H)
To a solutiotiWy1l 3-fluorobenzofuran-7-carboxylate (1.4 g, 7.3 mmol, 1.0 eq.) in THF (15 mL) was added DIBAL-H (10.9 mL, 10.9 mmol, 1.5 eq., 1 N in toluene) at −65° C. The mixture was warmed to 0° C. and stirred for 2 hours under N2 atmosphere. The reaction was quenched with Potassium sodium tartrate tetrahydrate Solution until no gas detected, then added Celite pad and stirred 10 mins. The mixture was filtered and filtrate was concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-20% EtOAc in PE) to give methyl 3-fluorobenzofuran-7-carboxylate (580 mg, 48% yield) as a colorless oil. No MS signal. 1H NMR (400 MHz, DMSO-d6) δ 8.26 (d, J=4.4 Hz, 1H), 7.58 (d, J=7.7 Hz, 1H), 7.45 (d, J=7.2 Hz, 1H), 7.34 (t, J=7.6 Hz, 1H), 5.35 (t, J=5.7 Hz, 1H), 4.79 (d, J=5.5 Hz, 2H).
To a solution of (3-fluorobenzofuran-7-yl)methanol (560 mg, 3.4 mmol, 1.0 eq.) in DCM (10 mL) was added Imidazole (458 mg, 6.7 mmol, 2.0 eq.) and tert-Butyldimethylchlorosilane (762 mg, 5.2 mmol, 1.5 eq.) at 0° C. The mixture was stirred at 0° C. for 1 hour. The resulting solution was diluted with water (50 mL), then extracted with DCM (30 mL×3) and the layers were separated. The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-5% EtOAc in PE) to afford ert-butyl((3-fluorobenzofuran-7-yl)methoxy)dimethylsilane (900 mg, 95% yield) as a colorless oil. No MS signal.
To a solution of tert-butyl((3-fluorobenzofuran-7-yl)methoxy)dimethylsilane (900 mg, 3.2 mmol, 1.0 eq.) in THF (10 mL) was added n-BuLi (1.9 mL, 4.8 mmol, 1.5 eq., 2.5M in hexane) at −65° C. under N2 atmosphere. The reaction was stirred at −65° C. for 30 mins, then added a mixture of 12 (978 mg, 3.7 mmol, 1.2 eq.) in THF. The reaction was stirred at −65° C. for 2 hours.
The mixture was diluted with sat. NH4Cl solution, extracted with EtOAc (20 mL×3) and the layers were separated. The organic layer was washed with brine, dried over Na2SO4, filtered and concentrated. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-15% EtOAc in PE) to afford tert-butyl((3-fluoro-2-iodobenzofuran-7-yl)methoxy)dimethylsilane (1.2 g, 92% yield) as a white solid. No MS signal.
To a solution of tert-butyl((3-fluoro-2-iodobenzofuran-7-yl)methoxy)dimethylsilane (800 mg, 2 mmol, 1.0 eq.) in MeCN (6 mL) was added HCl (2 mL, 4M in dioxane) at 25° C. The reaction was stirred at 25° C. for 2 hours. The mixture was diluted with sat. NaHCO3 solution, extracted with EtOAc (20 mL×3) and the layers were separated. The organic layer was washed with brine, dried over Na2SO4, filtered and concentrated. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-15% EtOAc in PE) to afford (3-fluoro-2-iodobenzofuran-7-yl)methanol (340 mg, 59% yield) as a white solid. No MS signal.
To a solution of (3-fluoro-2-iodobenzofuran-7-yl)methanol (300 mg, 1.0 mmol, 1.0 eq.) in DCM (10 mL) was added DIEA (268 μL, 1.5 mmol, 1.5 eq.) and MsCl (143 μL, 1.85 mmol, 1.8 eq.) at 0° C. under N2 atmosphere. The mixture was stirred at 0° C. for 1 hour. The resulting solution was diluted with 20 ml of water and extracted with DCM (3×20 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure to afford (3-fluoro-2-iodobenzofuran-7-yl)methyl methanesulfonate (350 mg, 92% yield) as a yellow solid. No MS signal.
To a solution of TMSCN (0.2 mL, 1.4 mmol, 1.5 eq.) in MeCN (5 mL) was added TBAF (1.7 mL, 1.7 mmol, 1.8 eq., 1M in THF) and (3-fluoro-2-iodobenzofuran-7-yl)methyl methanesulfonate (350 mg, 946 μmol, 1.0 eq.) at 0° C. under N2 atmosphere. The reaction was stirred at 25° C. for 1 hour. The mixture was concentrated under reduced pressure and purified by flash chromatography (100-200 mesh silica gel, 0-15% EtOAc in PE) to afford 2-(3-fluoro-2-iodobenzofuran-7-yl)acetonitrile (280 mg, 98% yield) as a white solid. No MS signal. 1H NMR (400 MHz, DMSO-d) 6 7.66-7.63 (m, 1H), 7.38 (d, J=5.1 Hz, 2H), 4.31 (s, 2H).
To a solution of 2-(3-fluoro-2-iodobenzofuran-7-yl)acetonitrile (280 mg, 930 μmol, 1.0 eq.) in DMF (8 mL) was added ethyl 3-bromopropanoate (168 mg, 930 μmol, 1.0 eq.) and K2CO3 (386 mg, 2.79 mmol, 3.0 eq.) at 25° C. The reaction was stirred at 80° C. for 1 hour. The resulting solution was diluted with water (10 mL), then extracted with EtOAc (10 mL×3) and the layers were separated. The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by Prep-TLC (PE:EtOAc=1:1) to afford ethyl 4-cyano-4-(3-fluoro-2-iodobenzofuran-7-yl)butanoate (60 mg, 16% yield) as a colorless oil. LC-MS (ESI): mass calcd. for C15H13FINO3, 401.0; m/z found, 402.0 [M+H]+.
To a solution of ethyl 4-cyano-4-(3-fluoro-2-iodobenzofuran-7-yl)butanoate (50 mg, 125 μmol, 1.0 eq.) in Toluene (5 mL) was added Indium trichloride (3 mg, 13 μmol, 0.1 eq.) and Acetaldoxime (22 mg, 374 μmol, 3.0 eq.). The reaction was stirred at 100° C. for 1 hour. The resulting solution was concentrated under reduced pressure and the residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to afford ethyl 5-amino-4-(3-fluoro-2-iodobenzofuran-7-yl)-5-oxopentanoate (40 mg, 77% yield) as a white solid. LC-MS (ESI): mass calcd. for C15H15FINO4, 419.0; m/z found, 420.0 [M+H]+.
To a solution of ethyl 5-amino-4-(3-fluoro-2-iodobenzofuran-7-yl)-5-oxopentanoate (40 mg, 95.4 μmol, 1.0 eq.) in MeCN (5 mL) was added benzyl(trimethyl)ammonium hydroxide (47.9 mg, 286 μmol, 3.0 eq.) at 25° C. The reaction was stirred at 25° C. for 30 mins. The resulting solution was diluted with 20 ml of water, then extracted with EtOAc (10 mL×3) and washed with brine. The combined organic layers were dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to afford 3-(3-fluoro-2-iodobenzofuran-7-yl)piperidine-2,6-dione (20 mg, 39% yield, 70% Purity) as a white solid. LC-MS (ESI): mass calcd. for C13H9FINO3, 373.0; m/z found, 374.0 [M+H]+.
To a solution of ethyl 2-hydroxyacetate (3.5 g, 33.6 mmol, 2.0 eq.) in DME (100 mL) was added sodium hydride (1.0 g, 42.0 mmol, 2.5 eq. w.t. =60% in oil) at 0° C. The mixture was 0° C. for 30 mins. Then methyl 2-chloro-5-iodonicotinate (5 g, 16.8 mmol, 1.0 eq.) was added to this mixture. The mixture was stirred at 65° C. for 16 hours under N2. The resulting solution was diluted with 200 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to give ethyl 5-iodo-3-oxo-2,3-dihydrofuro[2,3-b]pyridine-2-carboxylate (1.5 g, 27% yield) as a white solid. LC-MS (ESI): mass calcd. for C10H81NO4, 332.95; m/z found, 334 [M+H]+.
A mixture of ethyl 5-iodo-3-oxo-2,3-dihydrofuro[2,3-b]pyridine-2-carboxylate (2.0 g, 6.0 mmol, 1.0 eq.) in HBr (10 mL) and H2O(10 mL) was stirred at 80° C. for 16 hours under N2. The resulting solution was diluted with 50 mL of cool water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to give 5-iodofuro[2,3-b]pyridin-3(2H)-one (1.0 g, 63.8% yield) as a white solid. LC-MS (ESI): mass calcd. for C7H4INO2, 260.93; m/z found, 262 [M+H]+.
A mixture of 5-iodofuro[2,3-b]pyridin-3(2H)-one (1.0 g, 3.8 mmol, 1.0 eq.) and ethyl 2-(triphenyl-15-phosphaneylidene)acetate (1.6 g, 4.6 mmol, 1.2 eq.) in Toluene (15 mL) was stirred at 110° C. for 16 hours under N2. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to give ethyl 2-(5-iodofuro[2,3-b]pyridin-3-yl)acetate (1.0 g, 88% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C11H10INO3, 330.97; m/z found, 332 [M+H]+.
A mixture of ethyl 2-(5-iodofuro[2,3-b]pyridin-3-yl)acetate (1.0 g, 3.0 mmol, 1.0 eq.), acrylamide (859 mg, 12.0 mmol, 4.0 eq.) and t-BuOK (338 mg, 3.0 mmol, 1.0 eq.) in DMF (10 mL) was stirred at 25° C. for 3 hours under N2. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give 3-(5-iodofuro[2,3-b]pyridin-3-yl)piperidine-2,6-dione (300 mg, 27.9% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C12H9IN2O3, 355.97; m/z found, 357 [M+H]+.
To a solution of 4-bromo-5-fluorobenzofuran (4 g, 18.6 mmol, 1.0 eq.) in THF (40 mL) was added LDA (28 mL, 28 mmol, 1 M in THF, 1.5 eq.) under N2, the solution was stirred at −78° C. for 1 hour, then added I2 (6.14 g, 24.2 mmol, 1.3 eq.) was stirred at −78° C. for 1 hour to give brown solution. TLC showed the reaction was completed. The solution was quenched water, extracted with EtOAc (200 mL) and the layers were separated. The organic layer was washed with brine (200 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜10% EtOAc in PE) to afford 4-bromo-5-fluoro-2-iodobenzofuran (3 g, yield 45%) as a white oil. No MS signal. 1H NMR (400 MHz, DMSO-d6) δ 7.66 (ddt, J=12.8, 9.5, 3.3 Hz, 1H), 7.26 (dddt, J=19.7, 12.6, 6.0, 3.1 Hz, 2H).
To a solution of 4-bromo-5-fluoro-2-iodobenzofuran (3.7 g, 11 mmol, 1.0 eq.) in DMF (40 mL) was added CuI (207 mg, 1.1 mmol, 0.1 eq.), tert-butyl prop-2-yn-1-ylcarbamate (2.5 g, 16.3 mmol, 1.5 eq.), TEA (4.5 mL, 32.6 mmol, 3.0 eq.) and Pd(PPh3)2C12 (762 mg, 1.1 mmol, 0.1 eq.) under N2. The solution was stirred at 25° C. for 1 hour to give yellow solution. LCMS showed the reaction was completed. The solution was quenched water, extracted with EtOAc (200 mL) and the layers were separated. The organic layer was washed with brine (200 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0%-30% EtOAC in PE) to afford tert-butyl (3-(4-bromo-5-fluorobenzofuran-2-yl)prop-2-yn-1-yl)carbamate (3.8 g, yield 90%) as a yellow solid. LC-MS (ESI): mass calcd. for C16H15BrFNO3, 367.0/369.0; m/z found, 312.0/314.0 [M+H−56]+.
To a solution of tert-butyl (3-(4-bromo-5-fluorobenzofuran-2-yl)prop-2-yn-1-yl)carbamate (900 mg, 2.4 mmol, 1.0 eq.) in DMSO (10 mL) and Water (1 mL) was added Pd(dppf)Cl2 (179 mg, 244 μmol, 0.1 eq.), 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoxazole (715 mg, 3.67 mmol, 1.5 eq.) and KF (426 mg, 7.33 mmol, 3.0 eq.) under N2. The solution was stirred at 90° C. for 3 hours to give black solution. LCMS showed the reaction was completed. The solution was quenched water, extracted with EtOAc (100 mL) and the layers were separated. The organic layer was washed with brine (100 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0%-50% EtOAC in PE) to afford tert-butyl (3-(5-fluoro-4-(isoxazol-4-yl)benzofuran-2-yl)prop-2-yn-1-yl)carbamate (550 mg, yield 60%) as a yellow solid. LC-MS (ESI): mass calcd. for C19H17FN2O4, 356.3; m/z found, 301.3 [M+H−56]+.
To a solution of tert-butyl (3-(5-fluoro-4-(isoxazol-4-yl)benzofuran-2-yl)prop-2-yn-1-yl)carbamate (550 mg, 1.5 mmol, 1.0 eq.) in MeOH (10 mL) and Water (5 mL) was added KF (269 mg, 4.6 mmol, 3.0 eq.) under N2. The solution was stirred at 90° C. for 1 hour to give yellow solution. LCMS showed the reaction was completed. The solution was quenched water, extracted with EtOAc (50 mL) and the layers were separated. The organic layer was washed with brine (50 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0%-50% EtOAc in PE) to afford tert-butyl (3-(4-(cyanomethyl)-5-fluorobenzofuran-2-yl)prop-2-yn-1-yl)carbamate (100 mg, yield 19%) as a yellow solid. LC-MS (ESI): mass calcd. for C18H17FN2O3, 328.1; m/z found, 327.1 [M−H]-.
To a solution of tert-butyl (3-(4-(cyanomethyl)-5-fluorobenzofuran-2-yl)prop-2-yn-1-yl)carbamate (100 mg, 305 μmol, 1.0 eq.) in DMF (5 mL) was added K2CO3 (126 mg, 914 μmol, 3.0 eq.) and methyl acrylate (26.2 mg, 305 μmol, 1.0 eq.) under N2. The solution was stirred at 50° C. for 1 hour to give yellow solution. LCMS showed the reaction was completed. The solution was quenched water, extracted with EtOAc (50 mL) and the layers were separated. The organic layer was washed with brine (50 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0%-50% EtOAc in PE) to afford methyl 4-(2-(3-((tert-butoxycarbonyl)amino)prop-1-yn-1-yl)-5-fluorobenzofuran-4-yl)-4-cyanobutanoate (83 mg, yield 62%) as a yellow solid. LC-MS (ESI): mass calcd. for C22H23FN2O5, 414.2; m/z found, 359.2 [M+H−56]+.
To a solution of methyl 4-(2-(3-((tert-butoxycarbonyl)amino)prop-1-yn-1-yl)-5-fluorobenzofuran-4-yl)-4-cyanobutanoate (80 mg, 193 μmol, 1.0 eq.) in Toluene (5 mL) was added InCl3 (4.3 mg, 19.3 μmol, 0.1 eq.) and (E)-acetaldehyde oxime (57 mg, 965 μmol, 5.0 eq.) under N2. The solution was stirred at 110° C. for 2 hours to give yellow solution. LCMS showed the reaction was completed. The solution was quenched with water, extracted with EtOAc (50 mL) and the layers were separated. The organic layer was washed with brine (50 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0%-50% EtOAc in PE) to afford methyl 5-amino-4-(2-(3-((tert-butoxycarbonyl)amino)prop-1-yn-1-yl)-5-fluorobenzofuran-4-yl)-5-oxopentanoate (56 mg, yield 64%) as a yellow solid. LC-MS (ESI): mass calcd. for C22H25FN2O6, 432.2; m/z found, 377.2 [M+H−56]+.
To a solution of methyl 5-amino-4-(2-(3-((tert-butoxycarbonyl)amino)prop-1-yn-1-yl)-5-fluorobenzofuran-4-yl)-5-oxopentanoate (40 mg, 92.5 μmol, 1.0 eq.) in THF (5 mL) was added t-BuOK (21 mg, 185 μmol, 2.0 eq.) under N2. The solution was stirred at 0° C. for 1 hour to give yellow solution. LCMS showed the reaction was completed. The solution was quenched water, extracted with EtOAc (50 mL) and the layers were separated. The organic layer was washed with brine (50 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0%-50% EtOAc in PE) to afford tert-butyl (3-(4-(2,6-dioxopiperidin-3-yl)-5-fluorobenzofuran-2-yl)prop-2-yn-1-yl)carbamate (26 mg, yield 67%) as a yellow solid. LC-MS (ESI): mass calcd. for C21H21FN2O5, 400.1; m/z found, 345.1 [M+H−56]+.
A solution of tert-butyl (3-(4-(2,6-dioxopiperidin-3-yl)-5-fluorobenzofuran-2-yl)prop-2-yn-1-yl)carbamate (26 mg, 65 μmol, 1.0 eq.) in DCM (5 mL) and TFA (1 mL) was stirred at 25° C. for 30 mins to give yellow solution. LCMS showed the reaction was completed. The solution was concentrated to afford 3-(2-(3-aminoprop-1-yn-1-yl)-5-fluorobenzofuran-4-yl)piperidine-2,6-dione (26 mg, crude) as a yellow oil. LC-MS (ESI): mass calcd. for C16H13FN2O3, 300.3; m/z found, 284.3 [M+H-17]+.
To a solution of 2,5-dichloroquinazoline (300 mg, 1.5 mmol, 1.0 eq.), Pd(dppf)C12 (110 mg, 150 μmol, 0.1 eq.) and methyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate (394.5 mg,, 1.5 mmol, 1.0 eq.) in 1,4-Dioxane (10 mL) and H2O(1 mL) was added K2CO3 (625 mg, 4.5 mmol, 1.0 eq.). The reaction mixture was stirred at 100° C. for 4 hours under N2. The resulting solution was diluted with 30 mL of H2O and extracted with EtOAc (40 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to give methyl 5-(5-chloroquinazolin-2-yl)picolinate (150 mg, 33% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C15H10ClN3O2, 299.05; m/z found, 300.05 [M+H]+.
To a solution of 2,4-dichloro-5-nitropyridine (3.0 g, 15.5 mmol, 1 eq.) in THF (30 mL) was added dimethylamine (771 mg, 17.1 mmol, 1.1 eq.) and K2CO3 (4.3 g, 31.1 mmol, 2 eq.) at 25° C. The mixture was stirred at 70° C. for 2 hours under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 100 ml of water and extracted with EtOAc (3* 100 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-20% EtOAc in PE) to afford 2-chloro-N,N-dimethyl-5-nitropyridin-4-amine (3.0 g, yield 95%) as a yellow solid. LC-MS (ESI): mass calcd. for C7H8ClN3O2,201.0; m/z found, 202.0 [M+H]+.
To a solution of 2-chloro-N,N-dimethyl-5-nitropyridin-4-amine (3.0 g, 14.9 mmol, 1 eq.) in EtOH (30 mL) and H2O(30 mL) was added Ammonium chloride (8.0 g, 149 mmol, 10 eq.) and Fe (8.3 g, 149 mmol, 10 eq.) at 25° C. The mixture was stirred at 80° C. for 16 hours under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 100 ml of water and extracted with EtOAc (3* 100 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to afford 6-chloro-N4,N4-dimethylpyridine-3,4-diamine (1.4 g, yield 55%) as a yellow solid. LC-MS (ESI): mass calcd. for C7H10ClN3,171.1; m/z found, 172.1 [M+H]+.
A solution of 6-chloro-N4,N4-dimethylpyridine-3,4-diamine (127 mg, 738 μmol, 1.2 eq.), 6-bromo-1,3-dimethyl-4-(tetrahydro-2H-pyran-4-yl)-1,3-dihydro-2H-benzo[d]imidazol-2-one (200 mg, 615 μmol, 1 eq.), Ru-Phos Pd G1 (90 mg, 123 μmol, 0.2 eq.), Ru-Phos (58 mg, 123 μmol, 0.2 eq.) and Cs2CO3 (601 mg, 1.84 mmol, 3 eq.) in 1,4-Dioxane (5 mL) was stirred at 100° C. for 2 hours under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 50 ml of water and extracted with EtOAc (3*50 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford 6-((6-chloro-4-(dimethylamino)pyridin-3-yl)amino)-1,3-dimethyl-4-(tetrahydro-2H-pyran-4-yl)-1,3-dihydro-2H-benzo[d]imidazol-2-one (40 mg, yield 15%) as a brown solid. LC-MS (ESI): mass calcd. for C21H26ClN5O2,415.2; m/z found, 416.2 [M+H]+.
To a solution of 6-((6-chloro-4-(dimethylamino)pyridin-3-yl)amino)-1,3-dimethyl-4-(tetrahydro-2H-pyran-4-yl)-1,3-dihydro-2H-benzo[d]imidazol-2-one (40 mg, 96.2 μmol, 1 eq.) in DMF (2 mL) was added NaH (6 mg, 144 μmol, 1.5 eq., w.t. =60%) at 0° C. and was stirred for 30 mins. The mixture was added Mel (27 mg, 192 μmol, 2 eq.) and was stirred at 25° C. for 1 hour under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 50 ml of water and extracted with EtOAc (3*50 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford 6-((6-chloro-4-(dimethylamino)pyridin-3-yl)(methyl)amino)-1,3-dimethyl-4-(tetrahydro-2H-pyran-4-yl)-1,3-dihydro-2H-benzo[d]imidazol-2-one (30 mg, yield 70%) as a brown solid. LC-MS (ESI): mass calcd. for C22H28ClN5O2,429.2; m/z found, 430.2 [M+H]+.
A solution of 5-bromo-N-(tert-butyl)-2-chloroisonicotinamide (5 g, 17.1 mmol, 1.0 eq.), Pd(dppf)Cl2 (116 mg, 1.7 mmol, 0.1 eq.), (E)-2-(2-ethoxyvinyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (3.7 g, 18.9 mmol, 1.1 eq.) and K2CO3 (4.7 g, 34.3 mmol, 2.0 eq.) in 1,4-Dioxane (80 mL) and Water (8 mL) was stirred at 95° C. for 16 hours under N2 atmosphere. The resulting solution was diluted with 200 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to give (E)-N-(tert-butyl)-2-chloro-5-(2-ethoxyvinyl)isonicotinamide (2.5 g, 51% yield) as a white solid. LC-MS (ESI): mass calcd. for C14H19ClN2O2, 282.11; m/z found, 283 [M+H]+.
To a solution of (E)-N-(tert-butyl)-2-chloro-5-(2-ethoxyvinyl) isonicotinamide (2.5 g, 8.8 mmol, 1.0 eq.) in TFA (40 mL) was stirred at 100° C. for 3 days under N2 atmosphere. After cooled to room temperature, the resulting solution was concentrated under reduced pressure to give 7-chloro-2,6-naphthyridin-1(2H)-one (1.5 g, crude) as a brown solid. LC-MS (ESI): mass calcd. for C8H5ClN2O, 180.01; m/z found, 181 [M+H]+.
To a solution of 7-chloro-2,6-naphthyridin-1(2H)-one (1.5 g, 8.3 mmol, 1.0 eq.) and NBS (1.5 g, 14 mmol, 1.2 eq.) in DCM (10 mL) was stirred at 25° C. for 1 hour under N2 atmosphere. LCMS showed desired MS. The solid was collected by filtration to give 4-bromo-7-chloro-2,6-naphthyridin-1(2H)-one (1.5 g crude) as a yellow solid. LC-MS (ESI): mass calcd. for C8H4BrClN2O, 257.92; m/z found, 259 [M+H]+.
To a stirred solution of 4-bromo-7-chloro-2,6-naphthyridin-1(2H)-one (1.3 g, 5.1 mmol, 1.0 eq.) in DMF (20 mL) was added NaH (492 mg, 20.5 mmol, 4.0 eq. w.t. =60% in oil) at 0° C. After 30 mins of stirring, iodomethane (1.5 g, 10.3 mmol, 2.0 eq.) was dropwise to the solution. The solution was stirred at 25° C. for 30 mins. The resulting solution was diluted with 200 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give 4-bromo-7-chloro-2-methyl-2,6-naphthyridin-1(2H)-one (700 mg, 44% yield) as a white solid. LC-MS (ESI): mass calcd. for C9H6BrClN2O, 271.94; m/z found, 273 [M+H]+.
A solution of 4-bromo-7-chloro-2-methyl-2,6-naphthyridin-1(2H)-one (120 mg, 438.7 μmol, 1.0 eq.), Pd(dppf)Cl2 (32 mg, 43.8 μmol, 0.1 eq.), 4-isopropyl-1,3-dimethyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3-dihydro-2H-benzo[d]imidazol-2-one (151 mg, 526.5 μmol, 1.2 eq.), and Na2CO3 (140 mg, 1.3 mmol, 3.0 eq.) in 1,4-Dioxane (5 mL) and Water (0.5 mL) was stirred at 80° C. for 16 hours under N2 atmosphere. The resulting solution was diluted with 30 mL of water and extracted with EtOAc (10 mL×3). The combined organic layers were washed with brine (10 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% MeOH in DCM) and then purified by Prep-TLC to give 7-chloro-4-(1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-2-methyl-2,6-naphthyridin-1(2H)-one (18 mg, 12% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C21H21ClN4O2, 396.14; m/z found, 397 [M+H]+.
To a solution of 5-bromo-1-methyl-1H-pyrrolo[2,3-b]pyridine (5 g, 24 mmol, 1.0 eq.) in DCM (50 mL) was added ethyl 2-chloro-2-oxoacetate (19.4 g, 144 mmol, 6.0 eq.) and Aluminum chloride (42.6 g, 364 mmol, 13.5 eq.) at 0° C. The mixture was then stirred at 25° C. for 2 hours under N2. LCMS showed the reaction was completed. The resulting solution was diluted with 50 mL of water, then extracted with DCM (3×200 mL) and washed with brine. The combined organic layer was dried over anhydrous sodium sulfate and concentrated under vacuum. The residue was purified on a silica gel chromatography (100-200 mesh silica gel, 0-30% EtOAc in PE) to give ethyl 2-(5-bromo-1-methyl-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-oxoacetate (2 g, yield 27%) as a white solid. LC-MS (ESI): mass calcd. for C12H11BrN2O3, 310.0; m/z found, 311.0 [M+H]+.
To a solution of ethyl 2-(5-bromo-1-methyl-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-oxoacetate (2 g, 6.4 mmol, 1.0 eq.) in TFA (20 mL) was added Triethylsilane (4 mL, 25.6 mmol, 4.0 eq.) and at 25° C. The mixture was then stirred at 55° C. for 16 hours under N2. LCMS showed the reaction was completed. The resulting solution was diluted with 200 mL of water, then extracted with EtOAc (3×200 mL) and washed with brine. The combined organic layer was dried over anhydrous sodium sulfate and concentrated under vacuum. The combined organic layer was dried over anhydrous sodium sulfate and concentrated under vacuum. The residue was purified on a silica gel chromatography (100-200 mesh silica gel, 0-30% EtOAc in PE) to give ethyl 2-(5-bromo-1-methyl-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-oxoacetate (550 mg, yield 29%) as a white solid. LC-MS (ESI): mass calcd. for C12H13BrN2O2, 296.0; m/z found, 297.0 [M+H]+.
To a solution of ethyl 2-(5-bromo-1-methyl-1H-pyrrolo[2,3-b]pyridin-3-yl)acetate (300 mg, 1 mmol, 1.0 eq.), Ethylene carboxamide (287 mg, 4 mmol, 4.0 eq.), t-BuOK (136 mg, 1.2 mmol, 1.2 eq.) was added DMF (5 mL) at 25° C. The mixture was stirred at 25° C. for 30 minutes. LCMS showed the reaction was completed. The mixture was diluted with aq. NH4Cl and H2O, extracted with EtOAc (200 mL×3) and the layers were separated. The organic layer was washed with brine, dried over Na2SO4, filtered and concentrated. The product was purified by flash chromatography (100-200 mesh silica gel, 0-80% EtOAc in PE) to afford 3-(5-bromo-1-methyl-1H-pyrrolo[2,3-b]pyridin-3-yl)piperidine-2,6-dione (120 mg, yield 37%) as a yellow solid. LC-MS (ESI): mass calcd. for C13H12BrN3O2, 321.0; m/z found, 322.0 [M+H]+.
To a solution of 6-bromo-2-iodopyridin-3-ol (4 g, 13 mmol, 1.0 eq.), ethyl (E)-4-bromobut-2-enoate (2.6 g, 13 mmol, 1.0 eq.) in Toluene (60 mL) was added silver carbonate (7.4 g, 26 mmol, 2.0 eq.). The mixture was stirred at 80° C. for 3 hours under N2 atmosphere. LCMS showed the reaction was completed. The resulting solution was diluted with 200 mL of water, then extracted with EtOAc (3×200 mL) and washed with brine. The combined organic layer was dried over anhydrous sodium sulfate and concentrated under vacuum. The residue was purified on a silica gel chromatography (100-200 mesh silica gel, 0-20% EtOAc in PE) to give ethyl (E)-4-((6-bromo-2-iodopyridin-3-yl)oxy)but-2-enoate (4 g, yield 73%) as a white solid.
LC-MS (ESI): mass calcd. for C11H11BrINO3, 410.9; m/z found, 411.9 [M+H]+.
To a solution of ethyl (E)-4-((6-bromo-2-iodopyridin-3-yl)oxy)but-2-enoate (4 g, 9.7 mmol, 1.0 eq.), X-Phos Pd G2 (764 mg, 970 μmol, 0.1 eq.) in DMF (10 mL) was added Na2CO3 (2.1 g, 19.4 mmol, 2.0 eq.). The mixture was stirred at 80° C. for 16 hours under N2 atmosphere. LCMS showed the reaction was completed. The resulting solution was diluted with 200 mL of water, then extracted with EtOAc (3×200 mL) and washed with brine. The combined organic layer was dried over anhydrous sodium sulfate and concentrated under vacuum. The combined organic layer was dried over anhydrous sodium sulfate and concentrated under vacuum. The residue was purified on a silica gel chromatography (100-200 mesh silica gel, 0-30% EtOAc in PE) to give methyl 2-(5-bromofuro[3,2-b]pyridin-3-yl)acetate (800 mg, yield 29%) as a white solid. LC-MS (ESI): mass calcd. for C10HsBrNO3, 269.0; m/z found, 270.0/272.0 [M+H]+.
To a solution of methyl 2-(5-bromofuro[3,2-b]pyridin-3-yl)acetate (200 mg, 741 μmol, 1.0 eq.), t-BuOK (83 mg, 741 μmol, 1.0 eq.) in DMF (10 mL) was added acrylamide (53 mg, 741 μmol, 1.0 eq.). The mixture was stirred at 25° C. for 1 hour under N2 atmosphere. LCMS showed the reaction was completed. The mixture was diluted with sat. NH4Cl and H2O, extracted with EtOAc (20 mL×3) and the layers were separated. The organic layer was washed with brine, dried over Na2SO4, filtered and concentrated. The product was purified by flash chromatography (100-200 mesh silica gel, 0-80% EtOAc in PE) to afford 3-(5-bromofuro[3,2-b]pyridin-3-yl)piperidine-2,6-dione (60 mg, yield 26%) as a yellow solid. LC-MS (ESI): mass calcd. for C12H9BrN2O3, 308.0; m/z found, 309.0/311.0 [M+H]+.
To a solution of 5-bromo-3-iodo-1H-indazole (4 g, 12.4 mmol, 1 eq.), Ts-OH (236 mg, 1.2 mmol, 0.1 eq.) in DCM (40 mL) was added DHP (2.3 mL, 24.8 mmol, 2 eq.) at 0° C. The mixture was stirred at 25° C. for 3 hours, under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 50 mL of H2O and extracted with EtOAc (3*40 mL). The combined organic layers were washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to give 5-bromo-3-iodo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole (4 g, yield 79.3%) as a yellow oil. LC-MS (ESI): mass calcd. for C12H12BrIN2O, 405.9/407.9; m/z found, 406.9/408.9 [M+H]+.
To a solution of 5-bromo-3-iodo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole (3 g, 7.37 mmol, 1 eq.), CuI (140 mg, 737 μmol, 0.1 eq.) and 1,2-cyclohexanediamine, (lr,2r)-(210 mg, 0.3 mL, 1.8 mmol, 0.25 eq.) in 1,4-Dioxane (40 mL) was added Cs2CO3 (7.2 g, 22.1 mmol, 3 eq.) and tert-butyl 2-cyanoacetate (1.9 g, 13.3 mmol, 1.8 eq.). The mixture was stirred at 100° C. for 6 hours, under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 50 mL of H2O and extracted with EtOAc (3*40 mL). The combined organic layers were washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The residue was purified on silica gel (100-200 mesh silica gel, 0-15% EtOAc in PE) to give tert-butyl 2-(5-bromo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-3-yl)-2-cyanoacetate (1.3 g, yield 34%) as a yellow oil. LC-MS (ESI): mass calcd. for C19H22BrN3O3, 419.1/421.1; m/z found, 420.1/422.1 [M+H]+.
To a solution of tert-butyl 2-(5-bromo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-3-yl)-2-cyanoacetate (1.2 g, 2.86 mmol, 1 eq.), benzyl(triethyl)ammonium chloride (65 mg, 286 μmol, 0.1 eq.) in MeCN (15 mL) was added K2CO3 (789 mg, 5.71 mmol, 2 eq.) and added ethyl 3-bromopropanoate (1 g, 5.71 mmol, 2 eq.) after 0.5 hour at 88° C. The mixture was stirred at 88° C. for 16 hours, under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 50 mL of H2O and extracted with EtOAc (3*40 mL). The combined organic layers were washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-20% EtOAc in PE) to afford 1-(tert-butyl) 5-ethyl 2-(5-bromo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-3-yl)-2-cyanopentanedioate (1 g, yield 54%, 80% Purity) as a yellow oil. LC-MS (ESI): mass calcd. for C24H30BrN3O5, 519.1/521.1; m/z found, 520.1/522.1 [M+H]+.
To a solution of tert-butyl 2-(5-bromo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-3-yl)-2-cyanoacetate (1.2 g, 2.86 mmol, 1 eq.) in AcOH (16 mL) was added Sulfuric acid (400 μL).The mixture was stirred at 120° C. for 1 hour, under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 50 mL of H2O and extracted with EtOAc (3*40 mL). The combined organic layers were washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The residue was purified on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to afford 3-(5-bromo-1H-indazol-3-yl)piperidine-2,6-dione (380 mg, yield 43.2%) as a white solid. LC-MS (ESI): mass calcd. for C12H10BrN3O2, 307.0/309.0; m/z found, 308.0/310.0 [M+H]+.
To a solution of 3-(5-bromo-1H-indazol-3-yl)piperidine-2,6-dione (120 mg, 389 μmol, 1 eq.), Ts-OH (7.4 mg, 38.9 μmol, 0.1 eq.) in DCM (8 mL) was added DHP (65.5 mg, 71.1 μL, 779 μmol, 2 eq.) at 0° C. The mixture was stirred at 25° C. for 2 hours, under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 30 mL of H2O and extracted with EtOAc (3*20 mL). The combined organic layers were washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to afford 3-(5-bromo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-3-yl)piperidine-2,6-dione (100 mg, yield 65.5%) as a yellow solid. LC-MS (ESI): mass calcd. For C17H18BrN3O3, 391.0/393.0; m/z found, 392.0/394.0 [M+H]+.
To a solution of 3-(5-bromo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-3-yl)piperidine-2,6-dione (100 mg, 255 μmol, 1 eq.), Bis-(triphenylphosphino)-palladous chloride (18 mg, 25.5 μmol, 0.1 eq.), Phosphine, tricyclohexyl-(8 mg, 7.97 μL, 25.5 μmol, 0.1 eq.), CuI (10 mg, 51.0 μmol, 0.2 eq.) in DMF (5 mL) was added TEA (355 μL, 2.55 mmol, 10 eq.) and added tert-butyl prop-2-yn-1-ylcarbamate (119 mg, 765 μmol, 3 eq.) after 10 minutes at 90° C. The mixture was stirred at 90° C. for 3 hours, under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 30 mL of H2O and extracted with EtOAc (3*20 mL). The combined organic layers were washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-60% EtOAc in PE) to afford tert-butyl (3-(3-(2,6-dioxopiperidin-3-yl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)prop-2-yn-1-yl)carbamate (100 mg, yield 84.1%) as a yellow solid. LC-MS (ESI): mass calcd. for C25H30N4O5, 466.2; m/z found, 467.2 [M+H]+.
To a solution of tert-butyl (3-(3-(2,6-dioxopiperidin-3-yl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)prop-2-yn-1-yl)carbamate (50 mg, 107 μmol, 1 eq.) in DCM (3 mL) and TFA (600 μL) at 0° C. The mixture was stirred at 25° C. for 6 hours under N2 atmosphere. The reaction was monitored by LCMS. The reaction was cooled to 20° C. and concentrated under vacuum to give crude 3-(5-(3-aminoprop-1-yn-1-yl)-1H-indazol-3-yl)piperidine-2,6-dione (50 mg, crude) as a brown solid. LC-MS (ESI): mass calcd. for C15H14N4O2, 282.1; m/z found, 283.1 [M+H]+.
To a solution of 4,6-dichloro-1,3-dimethyl-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (500 mg, 2.2 mmol, 1 eq.) in 1,4-Dioxane (5 mL) was added azetidine (123 mg, 2.2 mmol, 1 eq.), Pd2(dba)3 (197 mg, 215 μmol, 0.1 eq.), Xant-Phos (249 mg, 431 μmol, 0.2 eq.) and Cs2CO3 (1.4 g, 4.3 mmol, 2 eq.) at 25° C. The mixture was then stirred at 100° C. for 4 hours under N2 atmosphere. The resulting solution was diluted with 30 mL of water and extracted with EtOAc (30 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give 4-(azetidin-1-yl)-6-chloro-1,3-dimethyl-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (84 mg, 15% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C11H13ClN4O, 252.1/254.1; m/z found, 252.7/254.7 [M+H]+.
To a mixture of 2,6-dichloro-3-nitropyridin-4-amine (5.0 g, 24.0 mmol, 1 eq.) in DCM (50 mL) and AcOH (12 mL) was added acetaldehyde (7.2 mL, 5.0 μmol, 36.1 mmol, 1.5 eq.) and BMS (13.2 mL, 26.4 mmol, 1.1 eq., 2.0 M in TIF) at 0° C. The mixture was stirred at 25° C. for 3 hours. The mixture was quenched with NaHCO3 solution and diluted with 50 mL of water and extracted with EtOAc (3* 100 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford 2,6-dichloro-N-ethyl-3-nitropyridin-4-amine (1.9 g, yield 33.5%) as a yellow solid. LC-MS (ESI): mass calcd. for C7H7Cl2N3O2, 235.0; m/z found, 236.0 [M+H]+.
To a mixture of 2,6-dichloro-N-ethyl-3-nitropyridin-4-amine (1.9 g, 8.0 mmol, 1 eq.) in EtOH (20.0 mL) and H2O(4.0 mL) was added Ammonium chloride (1.7 g, 1.1 mL, 32.2 mmol, 4 eq.) and Iron (3.6 g, 457 μL, 64.4 mmol, 8 eq.). The mixture was stirred at 60° C. for 1 hour. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (3*80 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford 2,6-dichloro-N4-ethylpyridine-3,4-diamine (1.5 g, yield 90.4%) as a yellow solid. LC-MS (ESI): mass calcd. for C7H9Cl2N3, 205.0; m/z found, 206.0 [M+H]+.
To a mixture of 2,6-dichloro-N4-ethylpyridine-3,4-diamine (1.9 g, 9.2 mmol, 1 eq.) in THF (20 mL) was added CDI (3.0 g, 18.4 mmol, 2 eq.), and the solution was stirred at 80° C. for 4 hours. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (3*50 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford 4,6-dichloro-1-ethyl-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (1.5 g, yield 70.1%) as a yellow solid. 1H NMR (400 MHz, DMSO-d6) δ 11.89 (s, 1H), 7.51 (s, 1H), 3.84 (d, J=7.2 Hz, 2H), 1.19 (t, J=7.1 Hz, 3H).
To a solution of 4,6-dichloro-1-ethyl-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (1.5 g, 6.4 mmol, 1 eq.) in DMF (15 mL) was added NaH (186 mg, 7.7 mmol, 1.2 eq.) at 0° C., the reaction was stirred at 0° C. for 30 min under N2 atmosphere. Then the mixture was added Mel (445 μL, 7.1 mmol, 1.1 eq.) at 0° C., the reaction was stirred at 25° C. for 1 hour under N2 atmosphere. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (3*50 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford 4,6-dichloro-1-ethyl-3-methyl-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (1.3 g, yield 81.7%) as a white solid. LC-MS (ESI): mass calcd. for C9H9C12N3O, 245.0; m/z found, 246.0 [M+H]+.
A solution of 2-chloro-4-methoxypyrimidin-5-amine (400 mg, 2.5 mmol, 1.0 eq.), Pd(dppf)Cl2 (163 mg, 251 μmol, 0.1 eq.), methyl 3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate (834 mg, 3.0 mmol, 1.2 eq.), K3PO4 (1.6 g, 7.5 mmol, 3.0 eq.) in 1,4-Dioxane (10 mL) and Water (1 mL) was stirred at 100° C. for 1 hour under N2. After cooled to room temperature, the resulting solution was diluted with 30 mL of water and extracted with EtOAc (10 mL×3). The combined organic layers were washed with brine (10 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to give methyl 5-(5-amino-4-methoxypyrimidin-2-yl)-3-methylpicolinate (240 mg, 35% yiled) as a brown solid. LC-MS (ESI): mass calcd. for C13H14N4O3, 274.11; m/z found, 275 [M+H]+.
To a mixture of 4-chloro-2-iodothieno[3,2-c]pyridine (6.0 g, 20.3 mmol, 1 eq.) in DMSO (60 mL) was added K2CO3 (8.4 g, 60.9 mmol, 3 eq.) and tert-butyl 2-cyanoacetate (2.9 g, 20.3 mmol, 1 eq.), and the solution was stirred at 120° C. for 3 hours. The resulting solution was diluted with 150 mL of water and extracted with EtOAc (3* 150 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford tert-butyl 2-cyano-2-(2-iodothieno[3,2-c]pyridin-4-yl)acetate (2.1 g, yield 25.8%) as a yellow solid. LC-MS (ESI): mass calcd. for C14H13IN2O2S, 400.0; m/z found, 401.0 [M+H]+.
To a solution of tert-butyl 2-cyano-2-(2-iodothieno[3,2-c]pyridin-4-yl)acetate (2.1 g, 5.2 mmol) in DCM (3 mL) was added TFA (3 mL) and stirred at room temperature for 8 hours. The resulting solution was diluted with 100 mL of water and extracted with EtOAc (3*100 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford 2-(2-iodothieno[3,2-c]pyridin-4-yl)acetonitrile (1.0 g, yield 66%) as a yellow solid. LC-MS (ESI): mass calcd. for C9H5IN2S, 300.0; m/z found, 301.0 [M+H]+.
To the solution of 2-(2-iodothieno[3,2-c]pyridin-4-yl)acetonitrile (330 mg, 1.1 mmol, 1 eq.) and K2CO3 (456 mg, 3.3 mmol, 3 eq.) in DMF (5 mL) was added ethyl 3-bromopropanoate (199 mg, 1.1 mmol, 1 eq.) at 25° C. The mixture was stirred at 50° C. for 30 min under N2 atmosphere. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (3*50 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford the ethyl 4-cyano-4-(2-iodothieno[3,2-c]pyridin-4-yl)butanoate (160 mg, yield 36.4%) as a yellow oil. LC-MS (ESI): mass calcd. for C14H13IN2O2S, 400.0; m/z found, 401.0 [M+H]+.
To the solution of ethyl 4-cyano-4-(2-iodothieno[3,2-c]pyridin-4-yl)butanoate (160 mg, 400 μmol, 1 eq.) in AcOH (4 mL) was added con. H2SO4 (0.4 mL) at 25° C. The mixture was stirred at 100° C. for 1 hour under N2 atmosphere. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (3*50 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford the product 3-(2-iodothieno[3,2-c]pyridin-4-yl)piperidine-2,6-dione (120 mg, yield 80.7%) as a white solid. LC-MS (ESI): mass calcd. for C12H9IN2O2S, 371.9; m/z found, 373.0 [M+H]+.
To a solution of 6-bromo-1H-indazole (3.5 g, 17.8 mmol, 1.0 eq.) in THF (40 mL) was added 3-bromopiperidine-2,6-dione (5.1 g, 26.6 mmol, 1.5 eq.) and t-BuOK (5.9 g, 53.3 mmol, 3.0 eq.), the solution was stirred at 50° C. for 16 hours to give purple solution. LCMS showed the reaction was completed. The resulting solution was diluted with 200 mL of water and extracted with EtOAc (3×200 mL). The combined organic layers were washed with brine (3×200 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜50% EtOAC in PE) to afford 3-(6-bromo-1H-indazol-1-yl)piperidine-2,6-dione (240 mg, yield 4.2%) as a yellow solid. LC-MS (ESI): mass calcd. for C12H10BrN3O2, 307.0/309.0; m/z found, 308.0/310.0 [M+H]+.
To a solution of 4-bromo-6-methoxy-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (600 mg, 2.2 mmol, 1.0 eq.) in DCM (15 mL) was added Boron tribromide (3.3 g, 13.3 mmol, 6.0 eq.) at 0° C. The mixture was stirred at 25° C. for 12 hours under N2 atmosphere. The reaction was monitored by LCMS. The reaction mixture was quenched with 10 ml of MeOH. The solid was collected by filtration to afford 4-bromo-6-hydroxy-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (320 mg, yield 56%) as a white solid. LC-MS (ESI): mass calcd. for C9H9BrN2O2, 256.1; m/z found, 257.3 [M+H]+.
To a solution of 4-bromo-6-hydroxy-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (320 mg, 1.2 mmol, 1.0 eq.), Na2CO3 (396 mg, 3.7 mmol, 3.0 eq.) and 1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,6-tetrahydropyridine (417 mg, 1.5 mmol, 1.9 eq.) in 1,4-Dioxane (5 mL) and H2O(0.5 mL) was added Pd(dppf)Cl2 (91 mg, 0.1 mmol, 0.1 eq.) at 25° C. The mixture was stirred at 120° C. for 2 hours under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 20 ml of water and extracted with EtOAc (3*20 mL). The mixture was filtered and the filtrate was concentrated under vacuum and purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% MeOH in DCM) to afford 6-hydroxy-1,3-dimethyl-4-(1-methyl-1,2,3,6-tetrahydropyridin-4-yl)-1,3-dihydro-2H-benzo[d]imidazol-2-one (100 mg, yield 29%) as a brown oil. LC-MS (ESI): mass calcd. for C15H19N3O2, 273.1; m/z found, 274.4 [M+H]+.
To a solution of 6-hydroxy-1,3-dimethyl-4-(1-methyl-1,2,3,6-tetrahydropyridin-4-yl)-1,3-dihydro-2H-benzo[d]imidazol-2-one (100 mg, 0.4 mmol, 1.0 eq.) in MeOH (5 mL) was added Pd/C (50 mg, w.t. =10%), and Pd(OH)2/C (50 mg, w.t. =10%). The mixture was degassed with H2 for 3 times and stirred at 50° C. using a H2 balloon for 18 hours. The resulting solution was filtered through a Celite pad and filtrate was concentrated under vacuum to give 3-((3-fluoro-4-hydroxypyridin-2-yl)amino)piperidine-2,6-dione (80 mg, crude) which was used for next step directly without further purification. LC-MS (ESI): mass calcd. for C15H21N3O2, 275.1; m/z found, 276.4 [M+H]+.
To a solution of 6-hydroxy-1,3-dimethyl-4-(1-methylpiperidin-4-yl)-1,3-dihydro-2H-benzo[d]imidazol-2-one (80 mg, 1.2 mmol, 1.0 eq.) and TEA (0.1 mL, 0.9 mmol, 3.0 eq.) in DCM (5 mL) was added Trifluoroaceticanhydride (92 mg, 0.4 mmol, 1.5 eq.) at 0° C. The mixture was stirred at 25° C. for 1 hour under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 10 ml of water and extracted with DCM (3* 10 mL). The mixture was filtered and the filtrate was concentrated under vacuum and purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% MeOH in DCM) to afford 1,3-dimethyl-7-(1-methylpiperidin-4-yl)-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl trifluoromethanesulfonate (75 mg, yield 63%) as a yellow solid. LC-MS (ESI): mass calcd. for C16H20FN3O4S, 407.1; m/z found, 408.4 [M+H]+.
To a solution of 2-bromo-4-methoxy-6-nitrophenol (4.5 g, 18.1 mmol, 1.0 eq.) in EtOH (30 mL) and Water (30 mL) was added NH4Cl (9.7 g, 181 mmol, 10.0 eq.) and iron (10.1 g, 181 mmol, 10.0 eq.). The solution was stirred at 80° C. for 3 hours to give black solution. LCMS showed the reaction was completed. The resulting solution was diluted with 100 mL of water and extracted with EtOAc (3×100 mL). The combined organic layers were washed with brine (3×100 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜100% EtOAc in PE) to afford 2-amino-6-bromo-4-methoxyphenol (2.4 g, yield 58%) as a yellow solid. LC-MS (ESI): mass calcd. for C7H8BrNO2, 217.0/219.0; m/z found, 218.0/220.0 [M+H]+.
To a solution of 2-amino-6-bromo-4-methoxyphenol (2.4 g, 11 mmol, 1.0 eq.) in THF (30 mL) was added CDI (3.6 g, 22 mmol, 2.0 eq.). The solution was stirred at 70° C. for 3 hours to give brown solution. LCMS showed the reaction was completed. The resulting solution was diluted with 100 mL of water and extracted with EtOAc (3×50 mL). The combined organic layers were washed with brine (3×50 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜100% EtOAC in PE) to afford 7-bromo-5-methoxybenzo[d]oxazol-2(3H)-one (2.3 g, yield 81%) as a yellow solid. LC-MS (ESI): mass calcd. for C8H6BrNO3, 243.0/245.0; m/z found, 244.0/246.0 [M+H]+.
To a solution of 7-bromo-5-methoxybenzo[d]oxazol-2(3H)-one (2.3 g, 9.7 mmol, 1.0 eq.) in DMF (40 mL) was added Mel (1.8 mL, 29.3 mmol, 3.0 eq.) and K2CO3 (8.1 g, 58.5 mmol, 6.0 eq.). The solution was stirred at 25° C. for 1 hour to give brown solution. LCMS showed the reaction was completed. The solution was quenched water (500 mL), filtered and concentrated to afford 7-bromo-5-methoxy-3-methylbenzo[d]oxazol-2(3H)-one (2.2 g, yield 83%) as a yellow solid. LC-MS (ESI): mass calcd. for C9H8BrNO3, 257.0/259.0; m/z found, 258.0/260.0 [M+H]+.
To a solution of 2-(3,6-dihydro-2H-pyran-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (2.9 g, 13.9 mmol, 3.0 eq.) in 1,4-Dioxane (20 mL) and Water (2 mL) was added 7-bromo-5-methoxy-3-methylbenzo[d]oxazol-2(3H)-one (1.2 g, 4.6 mmol, 1.0 eq.), Na2CO3 (1.5 g, 13.9 mmol, 3.0 eq.) and Pd(dppf)Cl2 (340 mg, 465 μmol, 0.1 eq.) under N2. The solution was stirred at 100° C. for 5 hours to give black solution. LCMS showed the reaction was completed. The resulting solution was diluted with 100 mL of water and extracted with EtOAc (3×100 mL). The combined organic layers were washed with brine (3×100 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜100% EtOAc in PE) to afford 7-(3,6-dihydro-2H-pyran-4-yl)-5-methoxy-3-methylbenzo[d]oxazol-2(3H)-one (700 mg, yield 55%) as a yellow solid. LC-MS (ESI): mass calcd. for C9H8BrNO3, 261.1; m/z found, 262.1 [M+H]+.
To a solution of 7-(3,6-dihydro-2H-pyran-4-yl)-5-methoxy-3-methylbenzo[d]oxazol-2(3H)-one (750 mg, 2.9 mmol, 1.0 eq.) in MeOH (20 mL) was added Pd/C (400 mg, 3.7 mmol, 1.3 eq.) under H2. The reaction solution was stirred at 50° C. using a H2 balloon for 4 hours to give black solution. LCMS showed the reaction was completed. The solution was filtered and concentrated to afford 5-methoxy-3-methyl-7-(tetrahydro-2H-pyran-4-yl)benzo[d]oxazol-2(3H)-one (650 mg, yield 82%) as a yellow solid. LC-MS (ESI): mass calcd. for C14H17NO4, 263.1; m/z found, 264.1 [M+H]+.
To a solution of 5-methoxy-3-methyl-7-(tetrahydro-2H-pyran-4-yl)benzo[d]oxazol-2(3H)-one (300 mg, 1.1 mmol, 1.0 eq.) in DCM (10 mL) was added BBr3 (539 μL, 5.7 mmol, 5.0 eq.). The solution was stirred at 0° C. for 1 hour to give yellow solution. LCMS showed the reaction was completed. The solution was quenched with MeOH, extracted with DCM (50 mL) and the layers were separated. The organic layer was washed with brine (50 mL), dried over Na2SO4, filtered and concentrated. The product was purified by flash chromatography (100-200 mesh silica gel, 0% ˜100% EtOAC in PE) to afford 5-hydroxy-3-methyl-7-(tetrahydro-2H-pyran-4-yl)benzo[d]oxazol-2(3H)-one (36 mg, yield 12%) as a yellow solid. LC-MS (ESI): mass calcd. for C13H15NO4, 249.1; m/z found, 250.1 [M+H]+.
To a solution of 5-hydroxy-3-methyl-7-(tetrahydro-2H-pyran-4-yl)benzo[d]oxazol-2(3H)-one (45 mg, 181 μmol, 1.0 eq.) in DCM (5 mL) was added Tf2O (77 mg, 271 μmol, 1.5 eq.) and TEA (50 μL, 361 μmol, 2.0 eq.) at 0° C. The solution was stirred at 25° C. for 1 hour to give yellow solution. LCMS showed the reaction was completed. The solution was quenched water, extracted with DCM (50 mL) and the layers were separated. The organic layer was washed with brine (50 mL), dried over Na2SO4, filtered and concentrated. The product was purified by flash chromatography (100-200 mesh silica gel, 0% ˜100% EtOAc in PE) to afford 3-methyl-2-oxo-7-(tetrahydro-2H-pyran-4-yl)-2,3-dihydrobenzo[d]oxazol-5-yl trifluoromethanesulfonate (50 mg, yield 69%) as a yellow solid. LC-MS (ESI): mass calcd. for C14H14F3NO6S, 381.0; m/z found, 382.0 [M+H]+.
To a solution of 1-(2-hydroxy-5-iodophenyl)ethan-1-one (800 mg, 3.1 mmol, 1.0 eq.), and dimethyl carbonate (825 mg, 9.3 mmol, 3.0 eq.) in THF (30 mL) was added t-BuOk (2.4 g, 21.4 mmol, 7.0 eq.) at 0° C. The mixture was stirred for 16 hours at 70° C. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (3×20 mL) and washed with brine (20 mL). The combined organic layers were dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified on a silica gel chromatography (100-200 mesh silica gel, 0-100% EtOAc in PE) to give 4-hydroxy-6-iodo-2H-chromen-2-one (800 mg, 91% yield) as a white solid. LC-MS (ESI): mass calcd. for C9H5IO3, 287.9; m/z found, 288.9 [M+H]+.
To a solution of 4-hydroxy-6-iodo-2H-chromen-2-one (800 mg, 2.8 mmol, 1.0 eq.) and Sodium acetate (800 mg, 9.8 mmol, 3.5 eq.) in EtOH (20 mL) was added hydroxylamine (322 mg, 9.8 mmol, 3.5 eq.) at room temperature. The reaction mixture was stirred at room temperature for 16 hours. The mixture was filtered and the organic was concentrated by vacuum, 2N HCl was added to adjust pH=2 and extracted with EtOAc (3×20 mL) and washed with brine (20 mL). The combined organic layers were dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified on a silica gel chromatography (100-200 mesh silica gel, 0-100% EtOAc in PE) to give 2-(5-iodobenzo[d]isoxazol-3-yl)acetic acid (300 mg, 36% yield) as a white solid. LC-MS (ESI): mass calcd. for C9H6INO3, 302.9; m/z found, 303.9 [M+H]+.
To a solution of 2-(5-iodobenzo[d]isoxazol-3-yl)acetic acid (300 mg, 1 mmol, 1.0 eq.) in EtOH (10 mL) was added con. H2SO4 (16 μL, 0.3 mmol, 0.3 eq.) at room temperature. The reaction mixture was stirred at room temperature for 16 hours. The resulting solution was diluted with 20 mL of water and extracted with EtOAc (3×20 mL) and washed with brine (20 mL). The combined organic layers were dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified on a silica gel chromatography (100-200 mesh silica gel, 0-100% EtOAc in PE) to give 4-hydroxy-6-iodo-2H-chromen-2-one (300 mg, 91% yield) as a white solid. LC-MS (ESI): mass calcd. for C11H10INO3, 331.0; m/z found, 332.0 [M+H]+.
To a solution of ethyl 2-(5-iodobenzo[d]isoxazol-3-yl)acetate (200 mg, 604 μmol, 1.0 eq.) and acrylamide (52 mg, 724 μmol, 1.2 eq.) in THF (8 mL) was added t-BuOK (81 mg, 724 μmol, 1.2 eq.). The reaction mixture was stirred at room temperature for 1 hour. The resulting solution was diluted with 20 mL of water and extracted with EtOAc (3×20 mL) and washed with brine (20 mL). The combined organic layers were dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified on a silica gel chromatography (100-200 mesh silica gel, 0-100% EtOAc in PE) to give 3-(5-iodobenzo[d]isoxazol-3-yl)piperidine-2,6-dione (100 mg, 31% yield) as a white solid. LC-MS (ESI): mass calcd. for C12H9IN2O3, 356.0; m/z found, 357.0 [M+H]+.
To a solution of NaH (1 g, 43.1 mmol, 1.5 eq., w.t.=60% in oil) in THF (50 mL) was added ethyl 3-oxobutanoate (7.5 g, 57.5 mmol, 2.0 eq.) at 0° C. under N2 atmosphere. The mixture was then stirred at 0° C. for 10 mins. Then 6-bromo-4-chloroquinazoline (7 g, 28.7 mmol, 1.0 eq.) and Toluene (50 mL) was added to the reaction. The mixture was then stirred at 110° C. for 6 hours. The resulting solution was diluted with 50 ml of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to afford ethyl 2-(6-bromoquinazolin-4-yl)acetate (4.5 g, yield 53%) as a white solid. LC-MS (ESI): mass calcd. for C12H11BrN2O2, 294.0; m/z found, 295.0/297.0 [M+H]+.
To a solution of ethyl 2-(6-bromoquinazolin-4-yl)acetate (1.5 g, 5.1 mmol, 1.0 eq.) in t-BuOH (30 mL) was added acrylonitrile (162 mg, 3.1 mmol, 0.6 eq.) and benzyl(trimethyl)ammonium hydroxide (170 mg, 1.0 mmol, 0.2 eq.). The reaction was stirred at 25° C. for 2 hours. The resulting solution was diluted with 50 ml of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to afford ethyl 2-(6-bromoquinazolin-4-yl)-4-cyanobutanoate (290 mg, yield 15%) as a white solid. LC-MS (ESI): mass calcd. for C15H14BrN3O2, 347.0; m/z found, 248.0/250.0 [M+H]+.
To a solution of ethyl 2-(6-bromoquinazolin-4-yl)-4-cyanobutanoate (290 mg, 833 μmol, 1.0 eq.) in Toluene (10 mL) was added Acetaldoxime (148 mg, 2.5 mmol, 3.0 eq.) and Indium trichloride (18 mg, 83.3 μmol, 0.1 eq.). The reaction was stirred at 110° C. for 1 hour. The resulting solution was diluted with 50 ml of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford ethyl 5-amino-2-(6-bromoquinazolin-4-yl)-5-oxopentanoate (200 mg, yield 66%) as a white solid.
LC-MS (ESI): mass calcd. for C15H16BrN3O3, 365.0; m/z found, 366.0/368.0 [M+H]+.
To a solution of ethyl 5-amino-2-(6-bromoquinazolin-4-yl)-5-oxopentanoate (175 mg, 478 μmol, 1.0 eq.) in MeCN (8 mL) was added benzyl(trimethyl)ammonium hydroxide (240 mg, 1.4 mmol, 3.0 eq.). The reaction was stirred at 60° C. for 1 hour. The resulting solution was diluted with 50 ml of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford 3-(6-bromoquinazolin-4-yl)piperidine-2,6-dione (105 mg, yield 69%) as a white solid. LC-MS (ESI): mass calcd. for C13H10BrN3O2, 319.0; m/z found, 320.0/322.0 [M+H]+.
To a solution of 5-bromo-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (200 mg, 415 μmol, 1.0 eq.) in Toluene (10 mL) was added Xant-Phos (35 mg, 83 μmol, 0.2 eq.), 3-chloro-5,6,7,8-tetrahydropyrido[2,3-c]pyridazine (71 mg, 415 μmol, 1.0 eq.), Pd2(dba)3 (38 mg, 4 μmol, 0.1 eq.)and t-BuONa (14 mg, 124 μmol, 3.0 eq.) under N2. The mixture was stirred at 110° C. for 4 hours to give brown solution. LCMS showed the reaction was completed. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (3×50 mL). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜100% EtOAC in PE) to afford 3 5-(3-chloro-6,7-dihydropyrido[2,3-c]pyridazin-8(5H)-yl)-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (100 mg, yield 30%) as a yellow solid. LC-MS (ESI): mass calcd. for C16H16ClN5O, 329.3; m/z found, 330.3 [M+H]+.
To a solution of 5-bromo-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-7-yl trifluoromethanesulfonate (300 mg, 750 μmol, 1.0 eq.) in Toluene (10 mL) was added Pd2(dba)3 (69 mg, 75 μmol, 0.1 eq.), 3-Methoxy-Azetidine Hydrochloride (93 mg, 750 μmol, 1.0 eq.), Xant-Phos (87 mg, 150 μmol, 0.2 eq.) and Cs2CO3 (733 mg, 2.3 mmol, 3.0 eq.). The reaction was stirred at 90° C. for 3 hours under N2. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (3×50 mL). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜100% EtOAC in PE) to afford 5-bromo-7-(3-methoxyazetidin-1-yl)-1,3-dimethylquinolin-2(1H)-one (50 mg, yield 19%) as a yellow solid. LC-MS (ESI): mass calcd. for C15H17BrN2O2, 336.0/338.0; m/z found, 337.0/339.0 [M+H]+.
To a solution of methyl 5-(6-fluoro-3,4-dihydro-2H-benzo[b][1,4]oxazin-7-yl)picolinate (89 mg, 311 μmol, 1.5 eq.) in 1,4-Dioxane (2 mL) was added 5-bromo-7-(3-methoxyazetidin-1-yl)-1,3-dimethylquinolin-2(1H)-one (70 mg, 208 μmol, 1.0 eq.), Xant-Phos (24 mg, 42 μmol, 0.2 eq.), Pd2(dba)3 (19 mg, 21 μmol, 0.1 eq.) and Cs2CO3 (203 mg, 623 μmol, 3.0 eq.) under N2. The mixture was stirred at 100° C. for 5 hours to give black solution. LCMS showed the reaction was completed. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (3×50 mL). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜100% EtOAC in PE) to afford methyl 5-(6-fluoro-4-(7-(3-methoxyazetidin-1-yl)-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)-3,4-dihydro-2H-benzo[b][1,4]oxazin-7-yl)picolinate (50 mg, yield 42%) as a yellow solid. LC-MS (ESI): mass calcd. for C30H29FN4O5, 544.2; m/z found, 545.2 [M+H]+.
To a solution of 5-bromo-3-iodo-1H-pyrazolo[3,4-b]pyridine (7 g, 21.6 mmol, 1.0 eq.) in DMF (50 mL) was added K2CO3 (9 g, 64.8 mmol, 3.0 eq.) and stirred for 30 mins at 60° C. Then the Mel (2.70 mL, 43.2 mmol, 2.0 eq.) was added and the mixture was stirred at 60° C. for 1 hour. The resulting solution was diluted with 100 mL of water and extracted with EtOAc (100 mL×3). The combined organic layers were washed with brine (100 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-13% EtOAc in PE) to give 5-bromo-3-iodo-1-methyl-1H-pyrazolo[3,4-b]pyridine (4.6 g, 63% yield) as a white solid.
LC-MS (ESI): mass calcd. for C7H5BrIN3, 336.87; m/z found, 337.8 [M+H]f.
To a solution of 5-bromo-3-iodo-1-methyl-1H-pyrazolo[3,4-b]pyridine (4.6 g, 13.6 mmol, 1.0 eq.), CuI (260 mg, 1.4 mmol, 0.1 eq.), Cs2CO3 (13.3 g, 40.8 mmol, 3.0 eq.) and 1,2-cyclohexanediamine, (lr,2r)- (390 mg, 3.4 mmol, 0.25 eq.) in 1,4-Dioxane (80 mL) was added tert-butyl 2-cyanoacetate (3.5 g, 24.5 mmol, 1.8 eq.) and stirred at 100° C. for 6 hours. The resulting solution was diluted with 200 mL of water and extracted with EtOAc (100 mL×3). The combined organic layers were washed with brine (200 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-13% EtOAc in PE, 5% DCM) to give tert-butyl 2-(5-bromo-1-methyl-1H-pyrazolo[3,4-b]pyridin-3-yl)-2-cyanoacetate (2 g, 42% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C14H15BrN4O2, 350.04; m/z found, 351.0 [M+H]+.
To a solution of tert-butyl 2-(5-bromo-1-methyl-1H-pyrazolo[3,4-b]pyridin-3-yl)-2-cyanoacetate (700 mg, 2.0 mmol, 1.0 eq.), K2CO3 (551 mg, 4.0 mmol, 2.0 eq.) and benzyl(triethyl)ammonium chloride (91 mg, 399 μmol, 0.2 eq.) in ACN (15 mL) was stirred at 88° C. for 30 mins. The ethyl 3-bromopropanoate (1.28 mL, 10.0 mmol, 5.0 eq.) was added and stirred at 88° C. for 16 hours. The reaction mixture was slowly poured into water (100 mL) and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (100 mL×3), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-5% EtOAc in PE) to give 1-(tert-butyl) 5-ethyl 2-(5-bromo-1-methyl-1H-pyrazolo[3,4-b]pyridin-3-yl)-2-cyanopentanedioate (300 mg, 33% yield) as a yellow solid. 1H NMR (400 MHz, DMSO-d6) δ 8.75 (d, J=2.0 Hz, 1H), 8.51 (d, J=2.1 Hz, 1H), 4.09 (s, 3H), 4.01 (q, J=7.1 Hz, 2H), 2.82-2.74 (m, 2H), 2.49-2.39 (m, 2H), 1.41 (s, 9H), 1.16 (t, J=7.1 Hz, 3H).
To a solution of 1-(tert-butyl) 5-ethyl 2-(5-bromo-1-methyl-1H-pyrazolo[3,4-b]pyridin-3-yl)-2-cyanopentanedioate (300 mg, 665 μmol,1.0 eq.) in HOAc (20 mL) and H2SO4 (0.5 mL) was stirred at 110° C. under N2 and stirred at room temperature for 2 hours. The reaction mixture was slowly poured into ice water (100 mL) and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL×3), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to give 3-(5-bromo-1-methyl-1H-pyrazolo[3,4-b]pyridin-3-yl)piperidine-2,6-dione (200 mg, 93% yield) as a white solid. 1H NMR (400 MHz, DMSO-d6) δ 11.01 (s, 1H), 8.69 (s, 1H), 8.63 (s, 1H), 4.46 (dd, J=11.0, 4.8 Hz, 1H), 4.08 (s, 3H), 2.79-2.72 (m, 1H), 2.69-2.64 (m, 1H), 2.55-2.47 (m, 1H), 2.25-2.19 (m, 1H).
3-(5-bromobenzofuran-3-yl)piperidine-2,6-dione (2.0 g, 6.49 mmol, 1.0 eq.), PdCl2(dppf) (475 mg, 649 μmol, 0.1 eq.), (tributylstannyl)methanol (2.5 g, 7.8 mmol, 1.2 eq.) in 1,4-Dioxane (30 mL) at room temperature. The mixture was stirred at 100° C. for 16 hours. The resulting solution was diluted with 40 ml of water and extracted with DCM (30 mL×3). The combined organic layers were washed with brine (30 mL×3), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by silica gel chromatography (100-200 mesh silica gel, 0-10% MeOH in DCM) to give 3-(5-(hydroxymethyl)benzofuran-3-yl)piperidine-2,6-dione (400 mg, yield 24%) as a yellow solid. LC-MS (ESI): mass calcd. for C14H13NO4, 259.1; m/z found, 260.3 [M+H]+.
To a solution of 3-(5-(hydroxymethyl)benzofuran-3-yl)piperidine-2,6-dione (350 mg, 1.3 mmol, 1.0 eq.) in DCM (7 mL) was added Dess-Martin periodinane (687 mg, 1.6 mmol, 1.2 eq.), the mixture was stirred for 0° C. at 2 hours. The resulting solution was diluted with 20 ml of water and extracted with DCM (20 mL×3). The combined organic layers were washed with brine (20 mL×3), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by silica gel chromatography (100-200 mesh silica gel, 0-10% MeOH in DCM) to give 3-(2,6-dioxopiperidin-3-yl)benzofuran-5-carbaldehyde (250 mg, yield 72.0%) as a solid. LC-MS (ESI): mass calcd. for C14H11NO4, 257.1; m/z found, 258.3 [M+H]+.
To a dried Schlenk flask were sequentially added 3-(2,6-dioxopiperidin-3-yl)benzofuran-5-carbaldehyde (200 mg, 777 μmol, 1.0 eq.), prop-2-yn-1-ol (44 mg, 777 μmol, 1.0 eq.), (S)-(+)-alpha,alpha-Diphenyl-2-pyrrolidinemethanol (130 mg, 513 μmol, 0.66 eq.), 1,4-Dioxane (5 mL) and Cupric bromide (26 mg, 117 μmol, 0.15 eq.) under the nitrogen atmosphere. The mixture was stirred at 130° C. for 5 hours. The resulting solution was diluted with 20 ml of water and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine (20 mL×3), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by silica gel chromatography (100-200 mesh silica gel, 0-10% MeOH in DCM) to give 3-(5-(4-hydroxybuta-1,2-dien-1-yl)benzofuran-3-yl)piperidine-2,6-dione (80.0 mg, yield 35%) as a yellow oil. LC-MS (ESI): mass calcd. for C17H15NO4, 297.1; m/z found, 298.3 [M+H]+.
To a solution of 3-(5-(4-hydroxybuta-1,2-dien-1-yl)benzofuran-3-yl)piperidine-2,6-dione (40.0 mg, 135 μmol, 1.0 eq.) in DCM (5 mL) was added TEA (0.2 mL) and MsCl (0.1 mL), the mixture was stirred for 25° C. at 2 hours. The resulting solution was diluted with 20 ml of water and extracted with DCM (20 mL×3). The combined organic layers were washed with brine (20 mL×3), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by silica gel chromatography (100-200 mesh silica gel, 0-10% MeOH in DCM) to give 4-(3-(2,6-dioxopiperidin-3-yl)benzofuran-5-yl)buta-2,3-dien-1-yl methanesulfonate (20.0 mg, yield 39.6%) as a solid. LC-MS (ESI): mass calcd. for C18H17NO6S, 375.0; m/z found, 376.0 [M+H]+.
To a solution of 4-(3-(2,6-dioxopiperidin-3-yl)benzofuran-5-yl)buta-2,3-dien-1-yl methanesulfonate (50 mg, 133 μmol, 1.0 eq.) in DMF (4 mL) was added sodium azide (9 mg, 133 μmol, 1.0 eq.), the mixture was stirred for 20° C. at 2 hours. The resulting solution was diluted with 20 ml of water and extracted with EtOAc (10 mL×3). The combined organic layers were washed with brine (10 mL×3), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by silica gel chromatography (100-200 mesh silica gel, 0-10% MeOH in DCM) to give 3-(5-(4-azidobuta-1,2-dien-1-yl)benzofuran-3-yl)piperidine-2,6-dione (35 mg, yield 81%) as a solid. LC-MS (ESI): mass calcd. for C17H14N4O3, 322.1; m/z found, 323.0 [M+H]+.
To a solution of 3-(5-(4-azidobuta-1,2-dien-1-yl)benzofuran-3-yl)piperidine-2,6-dione (40.0 mg, 124 μmol, 1.0 eq.) in THF (2 mL) and Water (2 mL) was added Triphenylphosphine (65.1 mg, 248 μmol, 2.0 eq.) and Boc2O(54.0 mg, 248 μmol, 2.0 eq.), the mixture was stirred for 20° C. at 16 hours. The resulting solution was diluted with 20 ml of water and extracted with DCM (10 mL×3). The combined organic layers were washed with brine (10 mL×3), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by silica gel chromatography (100-200 mesh silica gel, 0-10% MeOH in DCM) to give tert-butyl (4-(3-(2,6-dioxopiperidin-3-yl)benzofuran-5-yl)buta-2,3-dien-1-yl)carbamate (20.0 mg, yield 40.7%) as a solid. LC-MS (ESI): mass calcd. for C22H24N2O5, 396.1; m/z found, 397.3 [M+H]+.
A solution of tert-butyl (4-(3-(2,6-dioxopiperidin-3-yl)benzofuran-5-yl)buta-2,3-dien-1-yl)carbamate (20 mg, 50.4 μmol, 1.0 eq.), TFA (0.8 mL) in DCM (4 mL) with stirring at room temperature. The mixture was stirred at 25° C. for 1 hour. The residue was concentrated under reduced pressure to give 3-(5-(4-aminobuta-1,2-dien-1-yl)benzofuran-3-yl)piperidine-2,6-dione (20 mg, crude) as an oil. LC-MS (ESI): mass calcd. for C17H16N2O3, 296.1; m/z found, 297.3 [M+H]+.
In a 100 ml single-necked bottle, add ethyl 3-(trimethylsilyl)propiolate (3.0 g, 17.6 mmol, 1.0 eq.) and THF (45 mL), cool down to 0° C., add Lithium tetrahydrido(2H4)aluminate(1-) (740 mg, 17.6 mmol, 1.0 eq.) in batches, after the addition is complete, keep the reaction for 1 hour. An appropriate amount of water was slowly added dropwise to the reaction solution to quench the reaction. After the drop was completed, an appropriate amount of anhydrous sodium sulfate was added to dry, filtered, and the filtrate was concentrated to obtain 3-(trimethylsilyl)prop-2-yn-1,1-d2-1-ol (1.50 g, crude) as a colorless liquid.
3-(trimethylsilyl)prop-2-yn-1,1-d2-1-ol (300 mg, 2.3 mmol, 1.0 eq.), tert-butyl (diethoxyphosphoryl)carbamate (583 mg, 2.3 mmol, 1.0 eq.) and Triphenylphosphine (604 mg, 2.3 mmol, 1.0 eq.) were dissolved in anhydrous THF (15 mL). The reaction mixture was flushed with argon and subsequently cooled to 0° C. DIAD (466 mg, 2.3 mmol, 1.0 eq.) was added dropwise to the reaction over 10 minutes. Cooling was removed and the reaction mixture was stirred at room temperature for 18 hours. The solvent was removed in vacuo and the crude reaction mixture containing intermediate tert-butyl (diethoxyphosphoryl)(3-(trimethylsilyl)prop-2-yn-1-yl-1,1-d2)carbamate (900 mg, crude) was directly submitted to the next step.
tert-butyl (diethoxyphosphoryl)(3-(trimethylsilyl)prop-2-yn-1-yl-1,1-d2)carbamate (800 mg, 1.1 mmol, 1.0 eq.) was dissolved in HCl/dioxane (10 mL). Then the reaction mixture was sealed and left to stir overnight. The reaction mixture was filtered, the residue was triturated with diethyl ether and dried in vacuo to give 3-(trimethylsilyl)prop-2-yn-1,1-d2-1-amine (100 mg, crude) as a white solid.
3-(trimethylsilyl)prop-2-yn-1,1-d2-1-amine (200 mg, 1.5 mmol, 1.0 eq.) were added DCM (6 mL) and TEA (0.7 mL). The suspension was stirred at room temperature for 10 minutes prior to addition of di-tert-butyl dicarbonate (405 mg, 1.86 mmol, 1.2 eq.) in DCM (2 mL). The clear solution was stirred for 2 hours and concentrated by rotary evaporation to give a white solid. The material was treated with ethyl acetate, water and iN aq. KHSO4. The organic layer was extracted with saturated aq. NaHCO3 solution, dried over Na2SO4, filtered and concentrated to give tert-butyl (3-(trimethylsilyl)prop-2-yn-1-yl-1,1-d2)carbamate (300 mg, crude) as a colorless oil. The material was used in the next step without further purification.
Crude tert-butyl (3-(trimethylsilyl)prop-2-yn-1-yl-1,1-d2)carbamate (300 mg, 1.3 mmol, 1.0 eq.) was dissolved in MeOH (6 mL), to which K2CO3 (904 mg, 6.5 mmol, 5.0 eq.) was added. The suspension was stirred at room temperature for 2 hours. The reaction mixture was diluted with ethyl acetate and water and layers were separated. The organic layer was extracted with water and brine, dried over Na2SO4. The residue was applied on a silica gel chromatography and eluted with EA/PE (⅕) to give tert-butyl (prop-2-yn-1-yl-1,1-d2)carbamate (160 mg, yield 78%) as an oil. 1H NMR (400 MHz, CDCl3) δ 4.68 (s, 1H), 2.21 (s, 1H), 1.46 (s, 9H).
To a solution of 3-(5-bromobenzofuran-3-yl)piperidine-2,6-dione (50.0 mg, 162 μmol, 1.0 eq.) in DMF (3 mL) was added tert-butyl (prop-2-yn-1-yl-1,1-d2)carbamate (30.0 mg, 191 μmol, 1.2 eq.), Bis-(triphenylphosphino)-palladous chloride (11 mg, 16.2 μmol, 0.1 eq.), CuI (3.1 mg, 16.2 μmol, 0.1 eq.), TEA (0.3 mL) at room tempreature. The mixture was then stirred at 80° C. for 6 hours under N2. The resulting solution was diluted with 10 mL of water, then extracted with EtOAc (3×10 mL) and washed with brine (10 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-60% EtOAc in PE) to afford tert-butyl (3-(3-(2,6-dioxopiperidin-3-yl)benzofuran-5-yl)prop-2-yn-1-yl-1,1-d2)carbamate (30.0 mg, yield 48%) as a yellow solid. LC-MS (ESI): mass calcd. for C21H20D2N2O5, 384.1; m/z found, 385.3 [M+H]+.
A solution of tert-butyl (3-(3-(2,6-dioxopiperidin-3-yl)benzofuran-5-yl)prop-2-yn-1-yl-1,1-d2)carbamate (25.0 mg, 65.0 μmol, 1.0 eq.), TFA (0.4 mL) in DCM (2 mL) with stirring at room temperature. The mixture was stirred at 25° C. for 1 hour. The residue was concentrated under reduced pressure to give 3-(5-(3-aminoprop-1-yn-1-yl-3,3-d2)benzofuran-3-yl)piperidine-2,6-dione (20 mg, crude) as an oil. LC-MS (ESI): mass calcd. for C16H12D2N2O3, 284.1; m/z found, 285.3 [M+H]+.
To a solution of 2-(3,6-dihydro-2H-thiopyran-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (2.0 g, 8.8 mmol, 1.2 eq.), 4,6-dichloro-1,3-dimethyl-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (1.7 g, 7.4 mmol, 1.0 eq.) and K2CO3 (3.1 g, 22.1 mmol, 3.0 eq.) in 1,4-Dioxane (20 mL): H2O(2 mL) was added Pd(dppf)Cl2 (539 mg, 737 μmol, 0.1 eq.) at r.t. The mixture was stirred at 100° C. for 6 hours under N2 atmosphere. The resulting solution was diluted with 100 ml of water, then extracted with EtOAc (3*20 mL) and washed with brine (2*20 mL). The combined organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to afford the product6-chloro-4-(3,6-dihydro-2H-thiopyran-4-yl)-1,3-dimethyl-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (700 mg, 32.1% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C13H14ClN3OS, 295.05; m/z found, 296 [M+H]+.
To a solution of 6-chloro-4-(3,6-dihydro-2H-thiopyran-4-yl)-1,3-dimethyl-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (900 mg, 3.0 mmol, 1.0 eq.) in DCM (20 mL) was added Oxone (18.7 g, 30.4 mmol, 10.0 eq.) at room temperature. The mixture was stirred at 40° C. for 36 hours under N2 atmosphere. The resulting solution was diluted with 100 ml of water, then extracted with DCM (3*20 mL) and washed with brine (2*20 mL). The combined organic layers were dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to afford 6-chloro-4-(1,1-dioxido-3,6-dihydro-2H-thiopyran-4-yl)-1,3-dimethyl-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (770 mg, 77.2% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C13H14ClN3O3S, 327.04; m/z found, 328 [M+H]+.
To a solution of 6-chloro-4-(1,1-dioxido-3,6-dihydro-2H-thiopyran-4-yl)-1,3-dimethyl-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (300 mg, 915 μmol, 1.0 eq.), Pd/C (120 mg, w.t.=10%) in MeOH (3 mL) and THF (1 mL) was stirred at 50° C. for 24 hours under H2 atmosphere. The resulting solution was removed under reduced pressure. The residue was purified by Prep-HPLC to give 6-chloro-4-(1,1-dioxidotetrahydro-2H-thiopyran-4-yl)-1,3-dimethyl-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (20 mg, 6.6% yield) as a white solid.
LC-MS (ESI): mass calcd. for C13H16ClN3O3S, 329.06; m/z found, 330 [M+H]+.
To a solution of 2,4-dichloro-5-nitropyrimidine (7.5 g, 38.7 mmol, 1.0 eq.) in THE (80 mL) was added K2CO3 (10.7 g, 77.3 mmol, 2.0 eq.) and dimethylamine (21 mL, 42.5 mmol, 2 M in THF, 1.1 eq.). The solution was stirred at 25° C. for 1 hour to give yellow solution. LCMS showed the reaction was completed. The resulting solution was diluted with 500 mL of water and extracted with EtOAc (3×300 mL). The combined organic layers were washed with brine (500 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜30% EtOAC in PE) to afford 2-chloro-N,N-dimethyl-5-nitropyrimidin-4-amine (6.6 g, yield 80%) as a yellow solid. LC-MS (ESI): mass calcd. for C6H7ClN4O2, 202.0; m/z found, 203.0 [M+H]+.
To a solution of 2-chloro-N,N-dimethyl-5-nitropyrimidin-4-amine (6.6 g, 32.6 mmol, 1.0 eq.) in EtOH (50 mL) and Water (50 mL)was added NH4Cl (17.4 g, 326 mmol, 10.0 eq.) and iron (18.2 g, 326 mmol, 10.0 eq.).The solution was stirred at 80° C. for 2 hours to give black solution. LCMS showed the reaction was completed. The resulting solution was diluted with 500 mL of water and extracted with EtOAc (3×300 mL). The combined organic layers were washed with brine (500 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜50% EtOAC in PE) to afford 2-chloro-N4,N4-dimethylpyrimidine-4,5-diamine (2.9 g, yield 49%) as a yellow solid. LC-MS (ESI): mass calcd. for C6H9ClN4, 172.1; m/z found, 173.1 [M+H]+.
To a solution of 2-chloro-N4,N4-dimethylpyrimidine-4,5-diamine (500 mg, 2.90 mmol, 1.0 eq.) in THF (10 mL) was added KHMDS (4.4 mL, 4.3 mmol, 1 M in THF, 1.5 eq.), the solution was stirred at 0° C. for 30 mins, then added Boc2O(732 μL, 3.2 mmol, 1.1 eq.) was stirred at 25° C. for 1 hour to give yellow solution. LCMS showed the reaction was completed. The solution was quenched sat. NH4Cl solution, extracted with EtOAC (100 mL) and the layers were separated. The organic layer was washed with brine (100 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜50% EtOAC in PE) to afford tert-butyl (2-chloro-4-(dimethylamino)pyrimidin-5-yl)carbamate (350 mg, yield 42%) as a yellow solid. LC-MS (ESI): mass calcd. for C11H17ClN4O2, 272.3; m/z found, 273.3 [M+H]+.
To a solution of 2,2,2-trifluoroethyl 4-methylbenzenesulfonate (3 g, 11.8 mmol, 1.0 eq.) in THF (30 mL) was added LDA (12 mL, 24.0 mmol, 2.0 eq., 2M in THF) at −65° C. under N2 atmosphere. The reaction was stirred at −65° C. for 30 mins, added n-Bu3SnCl (3.2 mL, 11.8 mmol, 1.0 eq.) dropwise at −65° C. The reaction was warmed to 25° C. and stirred for 2 hours. The resulting solution was diluted with 50 ml of water and extracted with EtOAc (3×50 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-35% EtOAc in PE) to afford 2,2-difluoro-1-(tributylstannyl)vinyl 4-methylbenzenesulfonate (3.4 g, 55% yield) as a colorless oil. No MS signal. 1H NMR (400 MHz, CDCl3) δ 7.78 (d, J=8.3 Hz, 2H), 7.34 (d, J=8.1 Hz, 2H), 2.46 (s, 3H), 1.67-1.59 (m, 2H), 1.53 (dd, J=7.3, 3.0 Hz, 4H), 1.37-1.32 (m, 6H), 1.18-1.06 (m, 6H), 0.94-0.90 (m, 10H)
To a solution of 2-chloro-5-iodopyridine (500 mg, 2.1 mmol, 1.2 eq.) in DMF (10mL) was added 2,2-difluoro-1-(tributylstannyl)vinyl 4-methylbenzenesulfonate (910 mg, 1.7 mmol, 1.0 eq.), Pd(PPh3)4 (201 mg, 174 μmol, 0.1 eq.) and CuI (33 mg, 174 μmol, 0.1 eq.) at 25° C. The reaction was stirred at 80° C. for 16 hours under N2 atmosphere. The resulting solution was diluted with 50 ml of water and extracted with EtOAc (3×50 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to afford 1-(6-chloropyridin-3-yl)-2,2-difluorovinyl 4-methylbenzenesulfonate (550 mg, 92% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C14H10ClF2NO3S, 345.0; m/z found, 346.0 [M+H]+.
To a solution of 1-(6-chloropyridin-3-yl)-2,2-difluorovinyl 4-methylbenzenesulfonate (300 mg, 868 μmol, 1.0 eq.) in 1,4-Dioxane: Water (15 mL: 5 mL) was added (7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)boronic acid (237 mg, 954 μmol, 1.1 eq.), Pd(PPh3)4 (90 mg, 86.8 μmol, 0.1 eq.), K3PO4 (313 mg, 1.5 mmol, 1.7 eq.) and PCy3 (97 mg, 347 μmol, 0.4 eq.). The reaction was stirred at 100° C. for 3 hours under N2 atmosphere. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (3×50 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to afford 6-(1-(6-chloropyridin-3-yl)-2,2-difluorovinyl)-4-isopropyl-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (140 mg, 43% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C19H18ClF2N3O, 377.1; m/z found, 378.1 [M+H]+.
To a solution of 3,4-dihydro-2H-benzo[b][1,4]oxazine-6-carbonitrile (100 mg, 624 μmol, 1 eq.) and 6-bromo-4-isopropyl-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (212 mg, 749 μmol, 1.2 eq,) in 1,4-Dioxane (3 mL) were added 2-Dicyclohexylphosphino-2′,6′-diisopropoxybiphenyl (58 mg, 125 μmol, 0.2 eq.), Ru-Phos Pd G1 (91 mg, 125 μmol, 0.2 eq.) and Cs2CO3 (610 mg, 1.87 mmol, 3 eq.). The reaction mixture was stirred at 100° C. for 16 hours. The reaction mixture was poured into water and extracted with EtOAc (10 mL*3). The organic layer was washed with H2O, dried Na2SO4 and concentrated to give a residue. The residue was purified by column chromatography on silica geleluted with PE/EtOAc (100:1-1:1) to give 4-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-3,4-dihydro-2H-benzo[b][1,4]oxazine-6-carbonitrile (60 mg, 26% yield) as brown oil.
LC-MS (ESI): mass calcd. for C21H22N4O2, 362.17; m/z found, 363.17 [M+H]+.
To a solution of 4-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-3,4-dihydro-2H-benzo[b][1,4]oxazine-6-carbonitrile (100 mg, 276 μmol, 1 eq.) in DCM (2 mL) was added NBS (52 mg, 290 μmol, 1.05 eq.). The reaction mixture was stirred at 0° C. for 2 hours. The reaction mixture was poured into water and extracted with DCM (30 ml, 10*3 mL). The organic layer was washed with brine, dried Na2SO4 and concentrated to give a residue. The residue was purified by column chromatography on silica geleluted with PE/EtOAc (100:1˜1:1) to give 7-bromo-4-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-3,4-dihydro-2H-benzo[b][1,4]oxazine-6-carbonitrile (80 mg, 65%) as brown solid. LC-MS (ESI): mass calcd. for C21H21BrN4O2, 440.08; m/z found, 441.08 [M+H]+.
To a mixture of methyl 5-(8-bromo-6-methyl-5-oxo-5,6-dihydro-2,6-naphthyridin-3-yl)picolinate (360 mg, 962.1 μmol, 1.0 eq.), Pd(dppf)Cl2(70 mg, 96.2 μmol, 0.1 eq.), 4,4,4′,4′,5,5,5′,5′-octamethyl-2,2′-bi(1,3,2-dioxaborolane) (293 mg, 1.2 mmol, 1.2 eq.) and Potassium acetate (283 mg, 2.9 mmol, 3.0 eq.) in 1,4-dioxane (10 mL) was stirred at 80° C. for 6 hours under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 10 mL of water and extracted with EtOAc (3*30 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-40% EtOAc in PE) to afford methyl 5-(6-methyl-5-oxo-8-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5,6-dihydro-2,6-naphthyridin-3-yl)picolinate (200 mg, yield 49.3%) as a yellow solid. LC-MS (ESI): mass calcd. for C22H24BN3O5, 421.1; m/z found, 422.1 [M+H]+.
A mixture of methyl 5-(6-methyl-5-oxo-8-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5,6-dihydro-2,6-naphthyridin-3-yl)picolinate (200 mg, 475 μmol, 1.0 eq.), Pd(dppf)Cl2 (35 mg, 47.5 μmol, 0.1 eq.), Na2CO3 (151 mg, 1.4 mmol, 3.0 eq.) and 5,7-dichloro-1,3-dimethyl-1,6-naphthyridin-2(1H)-one (115 mg, 475 μmol, 1.0 eq.) in 1,4-dioxane (10 mL) and water (1 mL) was stirred at 80° C. for 6 hours under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 10 mL of water and extracted with EtOAc (3*20 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 50-100% EtOAc in PE) to give methyl 5-(8-(7-chloro-1,3-dimethyl-2-oxo-1,2-dihydro-1,6-naphthyridin-5-yl)-6-methyl-5-oxo-5,6-dihydro-2,6-naphthyridin-3-yl)picolinate (70 mg, yield 29.4%) as a yellow solid.
LC-MS (ESI): mass calcd. for C26H20ClN5O4, 501.1; m/z found, 502.1 [M+H]+.
To a mixture of methyl 5-(8-(7-chloro-1,3-dimethyl-2-oxo-1,2-dihydro-1,6-naphthyridin-5-yl)-6-methyl-5-oxo-5,6-dihydro-2,6-naphthyridin-3-yl)picolinate (70 mg, 139 μmol, 1.0 eq.), morpholine (18 mg, 209 μmol, 1.5 eq.), X-Phos (13 mg, 27.9 μmol, 0.2 eq.) and Cs2CO3 (136 mg, 418 μmol, 3.0 eq.) in 1,4-dioxane (10 mL) was added Pd2(dba)3 (13 mg, 13.9 μmol, 0.1 eq.), the mixture was stirred at 90° C. for 6 hours under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 10 mL of water and extracted with EtOAc (3*30 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 40-100% EtOAc in PE) to afford methyl 5-(8-(1,3-dimethyl-7-morpholino-2-oxo-1,2-dihydro-1,6-naphthyridin-5-yl)-6-methyl-5-oxo-5,6-dihydro-2,6-naphthyridin-3-yl)picolinate (40 mg, yield 51.9%) as a yellow solid. LC-MS (ESI): mass calcd. for C30H28N6O5, 552.2; m/z found, 553.2 [M+H]+.
To a solution of methyl 5-(8-(1,3-dimethyl-7-morpholino-2-oxo-1,2-dihydro-1,6-naphthyridin-5-yl)-6-methyl-5-oxo-5,6-dihydro-2,6-naphthyridin-3-yl)picolinate (20 mg, 36.2 μmol, 1.0 eq.) in THF (1 mL) and water (0.5 mL), was added LiGH (5 mg, 181 μmol, 5.0 eq.), then the mixture was stirred at 25° C. for 6 hours under N2 atmosphere. On completion, the resulting solution was poured to ice water, adjusted the pH to 3 with HCl (aq. 2.0 N). and extracted with EtOAc (3*20 mL). The organic layer was washed with H2O, dried Na2SO4 and concentrated under reduced pressure afford 5-(8-(1,3-dimethyl-7-morpholino-2-oxo-1,2-dihydro-1,6-naphthyridin-5-yl)-6-methyl-5-oxo-5,6-dihydro-2,6-naphthyridin-3-yl)picolinic acid (10 mg, yield 51.3%) as a white solid. LC-MS (ESI): mass calcd. for C29H26N6O5, 538.2; m/z found, 539.2 [M+H]+.
To a solution of methyl 5-(8-(7-chloro-1,3-dimethyl-2-oxo-1,2-dihydro-1,6-naphthyridin-5-yl)isoquinolin-3-yl)picolinate (60 mg, 127 μmol, 1.0 eq.), HE (65 mg, 255 μmol, 2.0 eq.), NiBr2-d(OMe)-bpy (62 mg, 127 μmol, 1.0 eq.) in DMA (2 mL) was added 1,3-dioxoisoindolin-2-yl tetrahydro-2H-pyran-4-carboxylate was irradiated (88 mg, 319 μmol, 2.5 eq.), followed by NaHCO3 (22 mg, 255 μmol, 2.0 eq.). The mixture was stirred under 390 nm purple LED at room temperature for 16 hours. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-4% MeOH in DCM) to give methyl 5-(8-(1,3-dimethyl-2-oxo-7-(tetrahydro-2H-pyran-4-yl)-1,2-dihydro-1,6-naphthyridin-5-yl)isoquinolin-3-yl)picolinate (15 mg, 23% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C31H28N4O4, 520.59; m/z found, 521.3 [M+H]+.
To a solution of 5-bromo-1H-pyrrolo[2,3-c]pyridine (5 g, 25.4 mmol, 1.0 eq.) and NaH (1.5 g, 38.1 mmol, 1.5 eq., w.t. =60%) in DMF (50 mL) was added Mel (3.2 mL, 50.8 mmol, 2 eq.) at 0° C. The mixture was stirred at 25° C. under N2 for 2 hours. The resulting solution was diluted with 100 ml of water and extracted with EtOAc (60 mL×3). The combined organic layers were washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The residue was purified with flash column chromatography on silica gel (EtOAc in PE, from 0% to 5%) to afford 5-bromo-1-methyl-1H-pyrrolo[2,3-c]pyridine (4.8 g, 89.6% yield) as a white solid. LC-MS (ESI): mass calcd. for C8H7BrN2, 211; m/z found, 211/213 [M+H]+.
To a solution of 5-bromo-1-methyl-1H-pyrrolo[2,3-c]pyridine (1.0 g, 4.7 mmol, 1.0 eq.) and ethyl 2-chloro-2-oxoacetate (1.3 g, 9.5 mmol, 2 eq.) in DCM was added Aluminum chloride (3.2 g, 23.7 mmol, 5 eq.) at 0° C. The mixture was stirred at 20° C. under N2 for 2 hours.
The resulting solution was diluted with 30 ml of water and extracted with EtOAc (30 mL×3). The combined organic layers were washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The residue was purified with flash column chromatography on silica gel (EtOAc in PE, from 0% to 30%) to afford ethyl 2-(5-bromo-1-methyl-1H-pyrrolo[2,3-c]pyridin-3-yl)-2-oxoacetate (1 g, 67.8% yield) as a white solid. LC-MS (ESI): mass calcd. for C12H11BrN2O3, 311; m/z found, 311/313 [M+H]+.
To a solution of ethyl 2-(5-bromo-1-methyl-1H-pyrrolo[2,3-c]pyridin-3-yl)-2-oxoacetate (1.0 g, 3.2 mmol, 1.0 eq.) and Triethylsilane (747 mg, 6.4 mmol, 2.0 eq.) in TFA (10 mL). The mixture was stirred at 55° C. for 16 hours. The resulting solution was diluted with 20 ml of water and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The residue was purified with flash column chromatography on silica gel (EtOAc in PE, from 0% to 20%) to afford ethyl 2-(5-bromo-1-methyl-1H-pyrrolo[2,3-c]pyridin-3-yl)acetate (350 mg, 36.6% yield) as a white solid. LC-MS (ESI): mass calcd. for C12H13BrN2O2, 297; m/z found, 297/298 [M+H]+.
To a solution of ethyl 2-(5-bromo-1-methyl-1H-pyrrolo[2,3-c]pyridin-3-yl)acetate (100 mg, 0.4 mmol, 1.0 eq.) and t-BuOK (38 mg, 0.4 mmol, 1.0 eq.) in DMF (5 mL) was added acrylamide (96 mg, 1.6 mmol, 4 eq.) at 0° C. The mixture was stirred at 20° C. under N2 for 2 hours. The resulting solution was diluted with 30 mL of water and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The combined organic layers were concentrated under reduced pressure. The residue was purified with flash column chromatography on silica gel (EtOAc in PE, from 0% to 20%) to afford. 3-(5-bromo-1-methyl-1H-pyrrolo[2,3-c]pyridin-3-yl)piperidine-2,6-dione (25 mg, 23.1% yield) as a white solid.
LC-MS (ESI): mass calcd. For C13H12BrN3O2, 322; m/z found, 322/324 [M+H]+.
To a solution of 1-(2-hydroxy-5-methoxyphenyl)ethan-1-one (10 g, 60.2 mmol, 1.0 eq.) in AcOH (100 mL) was added the solution of Br2 (3.3 mL, 63.2 mmol, 1.05 eq.) with stirring. The mixture was stirred at 25° C. for 16 hours under N2 atmosphere. The resulting solution was added ice water, and then filtered. The filter residue was concentrated under reduced pressure to give 1-(3-bromo-2-hydroxy-5-methoxyphenyl)ethan-1-one (12.3 g, 81% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C9H9BrO3, 243.97; m/z found, 245 [M+H]+.
To a solution of copper(II) bromide (5.5 g, 24.5 mmol, 2.0 eq.) in Ethyl acetate (50 mL) was added the solution of 1-(3-bromo-2-hydroxy-5-methoxyphenyl)ethan-1-one (3 g, 12.2 mmol, 1.0 eq.) in CHCl3 (30 mL) at 80° C. with stirring. The mixture was stirred at 80° C. for 16 hours under N2 atmosphere. After cooled to room temperature, the resulting solution was filtered. The filtrate was diluted with 300 mL of water and extracted with DCM (50 mL×3). The combined organic layers were washed with NaHCO3 (50 mL), dried over Na2SO4 and concentrated under reduced pressure to give 2-bromo-1-(3-bromo-2-hydroxy-5-methoxyphenyl)ethan-1-one (3.7 g, 62% yield) as a brown solid. LC-MS (ESI): mass calcd. for C9H8Br2O3, 321.88; m/z found, 323 [M+H]+.
To a solution of 2-bromo-1-(3-bromo-2-hydroxy-5-methoxyphenyl)ethan-1-one (3.7 g, 11.4 mmol, 1.0 eq.) in MeCN (50.0 mL) was added K2CO3 (3.2 g, 22.8 mmol, 2.0 eq.) at 0° C. with stirring. The mixture was stirred at 25° C. for 40 mins under N2. The resulting solution was filtered. The filtrate was concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to give 7-bromo-5-methoxybenzofuran-3(2H)-one (647 mg, 20% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C11H10INO3, 330.97; m/z found, 332 [M+H]+.
To a solution of 7-bromo-5-methoxybenzofuran-3(2H)-one (3.6 g, 14.8 mmol, 1.0 eq.) in Toluene (100 mL) was added ethyl 2-(triphenyl-15-phosphaneylidene)acetate (10.3 g, 29.6 mmol, 2.0 eq.) with stirring. The mixture was stirred at 110° C. for 16 hours under N2 atmosphere. After cooled to room temperature, the resulting solution was diluted with 300 mL of water and extracted with EtOAc (70 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to give ethyl 2-(7-bromo-5-methoxybenzofuran-3-yl)acetate (2.2 g, 46% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C13H13BrO4, 312.00; m/z found, 313 [M+H]+.
To a solution of ethyl 2-(7-bromo-5-methoxybenzofuran-3-yl)acetate (200 mg, 639 μmol, 1.0 eq.) in 1,4-Dioxane (5 mL) was added dppf (71 mg, 128 μmol, 0.2 eq.), Bis[tris(tert-butyl)phosphine]palladium (33 mg, 63.9 μmol, 0.1 eq.) and Zinc cyanide (150 mg, 1.3 mmol 2.0 eq.) with stirring. The mixture was stirred at 100° C. for 7 hours under N2. After cooled to room temperature, the resulting solution was diluted with 30 mL of water and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-20% EtOAc in PE) to give ethyl 2-(7-cyano-5-methoxybenzofuran-3-yl)acetate (140 mg, 84.6% yield) as a white solid.
LC-MS (ESI): mass calcd. for C14H13NO4, 259.08; m/z found, 260 [M+H]+.
To a solution of ethyl 2-(7-cyano-5-methoxybenzofuran-3-yl)acetate (2.1 g, 8.1 mmol, 1.0 eq.) in DCM (20.0 mL) was added tribromoborane (3.8 mL, 40.5 mmol, 5.0 eq.) at 0° C. with stirring. The mixture was stirred at 25° C. for 30 mins under N2. The resulting solution was added in 200 mL MeOH. diluted with 300 mL of water and extracted with DCM (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-40% EtOAc in PE) to give ethyl 2-(7-cyano-5-hydroxybenzofuran-3-yl)acetate (670 mg, 33% yield) as a white solid.
LC-MS (ESI): mass calcd. for C13H11NO4, 245.07; m/z found, 246 [M+H]+.
To a solution of ethyl 2-(7-cyano-5-hydroxybenzofuran-3-yl)acetate (600 mg, 2.4 mmol, 1.0 eq.) in DMF (6 mL) was added acrylamide (348 mg, 4.5 mmol, 2.0 eq.) and t-BuOK (347 mg, 4.9 mmol, 2.0 eq.) at 0° C. The mixture was stirred at 0° C. for 3 hours under N2. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give 3-(2,6-dioxopiperidin-3-yl)-5-hydroxybenzofuran-7-carbonitrile (50 mg, 7% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C14H10N2O4, 270.06; m/z found, 271 [M+H]+.
A mixture of 3-(2,6-dioxopiperidin-3-yl)-5-hydroxybenzofuran-7-carbonitrile (40 mg, 148 μmol, 1.0 eq.), TEA (60 μL, 148 μmol, 1.0 eq.) and Phenyl triflimide (53 mg, 148 μmol, 1.0 eq.) in DCM (3 mL). The mixture was stirred at 25° C. for 1 hour under N2. The resulting solution was diluted with 200 mL of water and extracted with EtOAc (200 mL×3). The combined organic layers were washed with brine (200 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-25% EtOAc in PE) to give 7-cyano-3-(2,6-dioxopiperidin-3-yl)benzofuran-5-yl trifluoromethanesulfonate (20 mg, 33.6% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C15H9F3N2O6S, 402.01; m/z found, 403 [M+H]+.
To a flask containing 1-(5-bromo-4-fluoro-2-hydroxyphenyl)ethan-1-one (500 mg, 2.15 mmol, 1 eq.) in EtOAc (10 mL) and CHCl3 (10 mL) was added CuBr2 (958 mg, 4.29 mmol, 2 eq.) at room temperature. The mixture was stirred at 80° C. for 16 hours under N2 atmosphere.
The reaction was monitored by LCMS. The resulting solution was diluted with 50 ml of water and extracted with EtOAc (3*50 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to afford 2-bromo-1-(5-bromo-4-fluoro-2-hydroxyphenyl)ethan-1-one (400 mg, yield 60%) as a white solid. LC-MS (ESI): mass calcd. for C8H5Br2FO2, 309.8; m/z found, 311.0 [M+H]+.
To a solution of 2-bromo-1-(5-bromo-4-fluoro-2-hydroxyphenyl)ethan-1-one (220 mg, 705 μmol, 1 eq.) in MeOH (5 mL) was added Sodium acetate (231 mg, 2.82 mmol, 4 eq.) at 25° C. The mixture was stirred at 70° C. for 2 hours under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 50 ml of water and extracted with EtOAc (3*50 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to afford 5-bromo-6-fluorobenzofuran-3(2H)-one (30 mg, yield 18%) as a yellow solid. 1H NMR (400 MHz, DMSO-d6) δ8.03 (d, J=7.3 Hz, 1H), 7.50 (d, J=9.3 Hz, 1H), 4.91 (s, 2H).
To a solution of 5-bromo-6-fluorobenzofuran-3(2H)-one (500 mg, 2.16 mmol, 1 eq.) in Toluene (5 mL) was added ethyl 2-(triphenyl-15-phosphaneylidene)acetate (754 mg, 2.16 mmol, 1 eq.) at 25° C. The mixture was stirred at 110° C. for 16 hours under N2 atmosphere. The reaction was monitored by LCMS. The resulting solution was diluted with 50 ml of water and extracted with EtOAc. The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to afford ethyl 2-(5-bromo-6-fluorobenzofuran-3-yl)acetate (300 mg, yield 46%) as a yellow solid. 1H NMR (400 MHz, DMSO-d6) δ 8.01-7.96 (m, 2H), 7.78 (d, J=9.0 Hz, 1H), 4.20-4.07 (m, 2H), 3.81 (s, 2H), 1.21 (t, J=7.1 Hz, 3H).
To the solution of 2-(3,6-dihydro-2H-thiopyran-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (2.0 g, 8.8 mmol, 1.2 eq.), 4,6-dichloro-1,3-dimethyl-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (1.7 g, 7.4 mmol, 1.0 eq.) and K2CO3 (3.1 g, 22.1 mmol, 3.0 eq.) in 1,4-Dioxane (20 mL): H2O(2 mL) was added Pd(dppf)Cl2 (539 mg, 737 μmol, 0.1 eq.) at r.t. The mixture was stirred at 100° C. for 6 hours under N2. The resulting solution was diluted with 100 ml of water, then extracted with EtOAc (3*20 mL) and washed with brine (2*20 mL). The combined organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to afford the product 6-chloro-4-(3,6-dihydro-2H-thiopyran-4-yl)-1,3-dimethyl-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (700 mg, 32% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C13H14ClN3OS, 295.05; m/z found, 296 [M+H]+.
To a solution of 6-chloro-4-(3,6-dihydro-2H-thiopyran-4-yl)-1,3-dimethyl-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (900 mg, 3.0 mmol, 1.0 eq.) in DCM (20 mL) was added Oxone (18.7 g, 30.4 mmol, 10.0 eq.) at room temperature. The mixture was stirred at 40° C. for 36 hours under N2 atmosphere. The resulting solution was diluted with 100 ml of water, then extracted with DCM (3*20 mL) and washed with brine (2*20 mL). The combined organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to afford the product 6-chloro-4-(1,1-dioxido-3,6-dihydro-2H-thiopyran-4-yl)-1,3-dimethyl-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (770 mg, 77% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C13H14ClN3O3S, 327.04; m/z found, 328 [M+H]+.
A mixture of 6-chloro-4-(1,1-dioxido-3,6-dihydro-2H-thiopyran-4-yl)-1,3-dimethyl-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (300 mg, 915 μmol, 1.0 eq.), 7-(difluoromethyl)-1,2,3,4-tetrahydroquinoline (184 mg, 1.1 mmol, 1.1 eq.), Ru-Phos (85 mg, 183 μmol, 0.2 eq.), Ru-Phos Pd G1 (67 mg, 91.5 μmol, 0.1 eq.) and Cs2CO3 (895 mg, 2.75 mmol, 3.0 eq.) in 1,4-Dioxane (10 mL) was stirred at 100° C. for 3 hours under N2. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-80% EtOAc in PE) to give 6-(7-(difluoromethyl)-3,4-dihydroquinolin-1(2H)-yl)-4-(1,1-dioxido-3,6-dihydro-2H-thiopyran-4-yl)-1,3-dimethyl-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (400 mg, 92% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C13H16ClN3O3S, 329.06; m/z found, 330 [M+H]+.
To a solution of 6-(7-(difluoromethyl)-3,4-dihydroquinolin-1(2H)-yl)-4-(1,1-dioxido-3,6-dihydro-2H-thiopyran-4-yl)-1,3-dimethyl-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (400 mg, 843 μmol, 1.0 eq.) and Pd(OH)2/C (120 mg, w.t.=10%) in MeOH (5 mL) was stirred at 25° C. for 16 hours under H2. The solution was filtrated with celite pad to give 6-(7-(difluoromethyl)-3,4-dihydroquinolin-1(2H)-yl)-4-(1,1-dioxidotetrahydro-2H-thiopyran-4-yl)-1,3-dimethyl-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (250 mg crude) as a yellow solid. LC-MS (ESI): mass calcd. For C23H26F2N4O3S, 476.17; m/z found, 477 [M+H]+.
To a solution of 6-(7-(difluoromethyl)-3,4-dihydroquinolin-1(2H)-yl)-4-(1,1-dioxidotetrahydro-2H-thiopyran-4-yl)-1,3-dimethyl-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (200 mg, 420 μmol, 1.0 eq.) in DCM (5 mL) was added NBS (75 mg, 420 μmol, 1.0 eq.) at 0° C.
The mixture was stirred at 0° C. for 1 hour under N2. The resulting solution was diluted with 50 mL of water and extracted with DCM (20 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give 6-(6-bromo-7-(difluoromethyl)-3,4-dihydroquinolin-1(2H)-yl)-4-(1,1-dioxidotetrahydro-2H-thiopyran-4-yl)-1,3-dimethyl-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (80 mg, 34% yield) as a yellow solid. LC-MS (ESI): mass calcd. For C23H25BrF2N4O3S, 554.08; m/z found, 555 [M+H]+.
A solution of 6-bromo-2,3-dihydroquinolin-4(1H)-one (1.5 g, 6.6 mmol, 1.0 eq.) in Toluene (20 mL) was added p-Toluene sulfonic acid (230 mg, 1.3 mmol, 0.2 eq.), ethane-1,2-dithiol (750 mg, 8.0 mmol, 1.2 eq.). The reaction mixture was stirred at 110° C. for 16 hours. The resulting solution was quenched with 10% aqueous NaOH (20 mL) and extracted with EtOAc (30 mL×3). The combined organic layers were washed with brine (30 mL×3), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by silica gel chromatography (100-200 mesh silica gel, 0-50% EtOAc in PE) to give 6-bromo-2,3-dihydro-1H-spiro [quinoline-4,2′- [1,3]dithiolane](800 mg, 40% yield) as a yellow oil.
LC-MS (ESI): mass calcd. for C11H12BrNS2, 300.96; m/z found, 302.2 304.2[M+H]+.
A solution of 6-bromo-2,3-dihydro-1H-spiro[quinoline-4,2′-[1,3]dithiolane](800 mg, 2.65 mmol, 1.0 eq.) in 1,4-Dioxane (10 mL) and H2O(1 mL) was added K2CO3 (1.1 g, 7.94 mmol, 3.0 eq.), methyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate (836 mg, 3.2 mmol, 1.2 eq.) and Pd(dppf)Cl2 (194 mg, 265 μmol, 0.1 eq.). The reaction mixture was stirred at 100° C. for 1 hour. The resulting solution was diluted with 20 ml of water and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine (20 mL×3), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by silica gel chromatography (100-200 mesh silica gel, 0-50% EtOAc in PE) to give methyl 5-(2,3-dihydro-1H-spiro [quinoline-4,2′- [1,3]dithiolan]-6-yl) picolinate (700 mg, 74% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C18H18N2O2S2, 358.08; m/z found, 359.0 [M+H]+.
A solution of methyl 5-(2,3-dihydro-1H-spiro[quinoline-4,2′-[1,3]dithiolan]-6-yl)picolinate (200 mg, 558 μmol, 1.0 eq.) in Toluene (2 mL) was added Cs2CO3 (545 mg, 1.67 mmol, 3.0 eq.), 6-bromo-4-isopropyl-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (175 mg, 614 μmol, 1.1 eq.), Xant-Phos (27 mg, 55.8 μmol, 0.1 eq.) and Pd2(dba)3 (51 mg, 55.8 μmol, 0.1 eq.). The reaction mixture was stirred at 110° C. for 16 hours. The resulting solution was diluted with 20 ml of water and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine (20 mL×3), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by silica gel chromatography (100-200 mesh silica gel, 0-50% EtOAc in DCM) to give methyl 5-(1-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-2,3-dihydro-1H-spiro [quinoline-4,2′- [1,3]dithiolan]-6-yl) picolinate (30 mg, 9% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C30H32N4O3S2, 560.19; m/z found, 561.2[M+H]+.
A solution of NIS (24 mg, 107 μmol, 2.0 eq.) in DCM (2 mL) was added Olah's Reagent (21 mg, 214 μmol, 4.0 eq.), methyl 5-(1-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-2,3-dihydro-1H-spiro[quinoline-4,2′-[1,3]dithiolan]-6-yl)picolinate (30 mg, 53.5 μmol, 1.0 eq.) at −70° C. The reaction mixture was stirred at −70° C. for 30 mins. The resulting solution was diluted with 20 ml of water and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine (20 mL×3), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by Prep-HPLC with Phenomenex SynergiYMC-Actus Triart C18 250*21 mm, and mobile phase of 20-99% ACN in water (0.1% FA) to afford methyl 5-(4,4-difluoro-1-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-1,2,3,4-tetrahydroquinolin-6-yl) picolinate (20 mg, 74% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C28H28F2N4O3, 506.21; m/z found, 507.3 [M+H]+.
A solution of methyl 5-(4,4-difluoro-1-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-1,2,3,4-tetrahydroquinolin-6-yl) picolinate (20 mg, 39.5 μmol, 1.0 eq.) in THF/H2O(2 mL) was added LiGH (2 mg, 59.2 μmol, 1.5 eq.). The reaction mixture was stirred at 25° C. for 1 hour. The resulting solution was concentrated under reduced pressure to give the product5-(4,4-difluoro-1-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-1,2,3,4-tetrahydroquinolin-6-yl) picolinic acid (15 mg, 77% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C27H26F2N4O3, 492.2; m/z found, 493.3 [M+H]+.
To a stirred mixture of 4-chloro-1H-pyrrolo[3,2-c]pyridine (8.5 g, 55.7 mmol, 1 eq.) in THF (80 mL) was added NaH (2.4 g, 100 mmol, 1.8 eq., w.t. =60%) at 0° C. The reaction was stirred at 0° C. for 1 hour under N2 atmosphere. Then added a mixture of tosyl-Cl (12.7 g, 66.9 mmol, 1.2 eq.) in THF (10 mL). The reaction was stirred at 0° C. for 1 hour. The mixture was diluted with aq. NH4Cl and diluted with 200 mL of water and extracted with EtOAc (3*200 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford 4-chloro-1-tosyl-1H-pyrrolo[3,2-c]pyridine (17.0 g, yield 99.5%) as a yellow solid. LC-MS (ESI): mass calcd. for C14H11ClN2O2S, 306.0; m/z found, 307.0 [M+H]+.
To a stirred mixture of 4-chloro-1-tosyl-1H-pyrrolo[3,2-c]pyridine (16.0 g, 52.2 mmol, 1 eq.) and Pd(dppf)Cl2 (3.8 g, 5.22 mmol, 0.1 eq.) in MeOH (150 mL) and DMF (150 mL) was added Et3N (36.3 mL, 261 mmol, 5 eq.), the reaction mixture was stirred at 80° C. for 12 hours under the CO atmosphere. The resulting solution was diluted with 200 mL of water and extracted with EtOAc (3*200 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford the methyl 1-tosyl-1H-pyrrolo[3,2-c]pyridine-4-carboxylate (7.0 g, yield 40.6%) as a yellow solid. LC-MS (ESI): mass calcd. for C16H14N204S, 330.1; m/z found, 331.1 [M+H]+.
To a solution of methyl 1-tosyl-1H-pyrrolo[3,2-c]pyridine-4-carboxylate (7.0 g, 21.2 mmol, 1 eq.) in MeOH (15 mL) was added SodiumTetrahydroborate (12.0 g, 11.2 mL, 318 mmol, 15 eq.) at 0° C. The reaction was stirred at 0° C. for 1 hour under N2 atmosphere. The mixture was diluted with aq. NH4Cl and diluted with 150 mL of water and extracted with EtOAc (3* 150 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford (1-tosyl-1H-pyrrolo[3,2-c]pyridin-4-yl)methanol (5.0 g, yield 78.0%) as a yellow solid. LC-MS (ESI): mass calcd. for C15H14N2O3S, 302.1; m/z found, 303.1 [M+H]+.
To a solution of (1-tosyl-1H-pyrrolo[3,2-c]pyridin-4-yl)methanol (4.0 g, 13.2 mmol, eq.) in DCM (160 mL) was added Imidazole (1.80 g, 1.75 mL, 26.5 mmol, 2 eq.) and tert-butylchlorodimethylsilane (2.39 g, 15.9 mmol, 1.2 eq.). The reaction was stirred at 0° C. for 30 min under N2 atmosphere. The resulting solution was diluted with 150 mL of water and extracted with EtOAc (3* 150 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford 4-(((tert-butyldimethylsilyl)oxy)methyl)-1-tosyl-1H-pyrrolo[3,2-c]pyridine (5.5 g, yield 99.8%) as a white oil. LC-MS (ESI): mass calcd. for C21H28N2O3SSi, 416.16; m/z found, 417 [M+H]+.
To a solution of 4-(((tert-butyldimethylsilyl)oxy)methyl)-1-tosyl-1H-pyrrolo[3,2-c]pyridine (5.5 g, 13.2 mmol, 1 eq.) in THF (50 mL) was added LDA (26.4 mL 26.4 mmol, 2 eq., 1.0 M in THF) at −78° C. The reaction was stirred at −78° C. for 1 hour under N2 atmosphere. Then added a mixture of 12 (3.7 g, 14.5 mmol, 1.1 eq.) in THF. The reaction was stirred at −78° C. for 1 hour. LCMS showed the reaction was completed. The mixture was diluted with aq. NH4Cl and diluted with 150 mL of water and extracted with EtOAc (3* 150 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford 4-(((tert-butyldimethylsilyl)oxy)methyl)-2-iodo-1-tosyl-1H-pyrrolo[3,2-c]pyridine (2.4 g, yield 33.5%) as a yellow solid. LC-MS (ESI): mass calcd. for C21H27IN2O3SSi, 542.1; m/z found, 543.1 [M+H]+.
To a solution of 4-(((tert-butyldimethylsilyl)oxy)methyl)-2-iodo-1-tosyl-1H-pyrrolo[3,2-c]pyridine (2.4 g, 4.4 mmol, 1 eq.) in THF (30 mL) was added Sodium methoxide (2.4 g, 2.6 mL, 44.2 mmol, 10 eq.) at 0° C. The reaction was added a mixture of Sodium methoxide (2.4 g, 2.6 mL, 44.2 mmol, 10 eq.) in CH30Na and stirred at 0° C. for 2 hours under N2 atmosphere. The resulting solution was diluted with 80 mL of water and extracted with EtOAc (3*80 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford 4-(((tert-butyldimethylsilyl)oxy)methyl)-2-iodo-1H-pyrrolo[3,2-c]pyridine (1.0 g, yield 58.2%) as a yellow solid. LC-MS (ESI): mass calcd. for C14H21IN2OSi, 388.1; m/z found, 389.1 [M+H]+.
To a solution of 4-(((tert-butyldimethylsilyl)oxy)methyl)-2-iodo-1H-pyrrolo[3,2-c]pyridine (900 mg, 2.3 mmol, 1 eq.) in THF (8 mL) was added sodium hydride (66.7 mg, 2.8 mmol, 1.2 eq.). The reaction was stirred at 0° C. for 30 min under N2 atmosphere. Then the mixture was added iodomethane (493 mg, 3.5 mmol, 1.5 eq.). The reaction was stirred at 0° C. for 30 min under N2 atmosphere. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (3*50 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford 4-(((tert-butyldimethylsilyl)oxy)methyl)-2-iodo-1-methyl-1H-pyrrolo[3,2-c]pyridine (300 mg, yield 32.2%) as a white solid. LC-MS (ESI): mass calcd. for C15H23IN2OSi, 402.1; m/z found, 403.1 [M+H]+.
To a solution of 5,7-dichloro-1,3-dimethyl-1,6-naphthyridin-2(1H)-one (1.3 g, 5.37 mmol, 1.3 eq.) in 1,4-Dioxane (5 mL) was added 2-chloro-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidine (700 mg, 4.13 mmol, 1 eq.), Pd2(dba)3 (756 mg, 825 μmol, 0.2 eq.) and potassium carbonate (1.7 g, 12.4 mmol, 3 eq.) under N2 atmosphere. The reaction mixture was stirred at 100° C. for 16 hours. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (3*50 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford 7-chloro-5-(2-chloro-7,8-dihydropyrido[3,2-d]pyrimidin-5(6H)-yl)-1,3-dimethyl-1,6-naphthyridin-2(1H)-one (500 mg, yield 32.2%) as a yellow solid. LC-MS (ESI): mass calcd. for C17H15C2N5O, 375.1; m/z found, 376.0 [M+H]+.
To a mixture of 7-chloro-5-(2-chloro-7,8-dihydropyrido[3,2-d]pyrimidin-5(6H)-yl)-1,3-dimethyl-1,6-naphthyridin-2(1H)-one (160 mg, 425.3 μmol, 1 eq.) in Toluene (8 mL) was added Pd2(dba)3 (78 mg, 85.05 μmol, 0.2 eq.), 4,4-Dimethyl-1,4-azasilinane hydrochloride (141 mg, 850.5 μmol, 2 eq.), t-BuONa (123 mg, 1.276 mmol, 3 eq.) and Xant-Phos (49 mg, 85.0 μmol, 0.2 eq.).The mixture was stirred at 100° C. for 12 hours. The resulting solution was diluted with 10 mL of water and extracted with EtOAc (3*20 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford 5-(2-chloro-7,8-dihydropyrido[3,2-d]pyrimidin-5(6H)-yl)-7-(4,4-dimethyl-1,4-azasilinan-1-yl)-1,3-dimethyl-1,6-naphthyridin-2(1H)-one (30.0 mg, yield 15.0%) as a yellow solid. LC-MS (ESI): mass calcd. for C23H29ClN6OSi, 468.2; m/z found, 469.2 [M+H]+.
To a mixture of 4,6-dichloro-1,3-dimethyl-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (500 mg, 2.2 mmol, 1.0 eq.) in DMF (10 mL) was added 1H-pyrazole (220 mg, 3.2 mmol, 1.5 eq.) and t-BuONa (518 mg, 5.4 mmol, 2.5 eq.) at 25° C. The mixture was stirred at 80° C. for 2 hours. The resulting solution was diluted with 50 ml of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to afford 6-chloro-1,3-dimethyl-4-(1H-pyrazol-1-yl)-1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (180 mg, 32% yield) as a white solid. LC-MS (ESI): mass calcd. for C11H10ClN5O, 263.1; m/z found, 264.1 [M+H]+.
To a solution of methyl 5-bromo-2-hydroxybenzoate (8.0 g, 34.6 mmol, 1.0 eq.) and tert-butyl 2-bromoacetate (13.5 g, 69.2 mmol, 2.0 eq.) in MeCN (150 mL) was added K2CO3 (14.4 g, 104 mmol, 3.0 eq.) at room temperature. The reaction mixture was stirred at 80° C. for 3 hours. The resulting solution was diluted with 100 mL of water and extracted with EtOAc (3×100 mL) and washed with brine (200 mL). The combined organic layers were dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified on a silica gel chromatography (100-200 mesh silica gel, 0-100% EtOAc in PE) to give methyl 5-bromo-2-(2-(tert-butoxy)-2-oxoethoxy)benzoate (8.0 g, 67% yield) as a white solid. LC-MS (ESI): mass calcd. for C14H17BrO5, 344.0; m/z found, 345.0 [M+H]+.
To a solution of t-BuOK (3.8 g, 33.8 mmol, 1.5 eq.) in THF (30 mL) was stirred for 30 minutes with ice bath. Then methyl 2-(2-(tert-butoxy)-2-oxoethoxy)benzoate (6.0 g, 22.5 mmol, 1.0 eq.) in THF (30 mL) was added dropwise while stirring. The resulting solution was stirred for 30 minutes. The reaction was quenched with 50 mL of water and extracted with EtOAc (3×60 mL) and washed with brine (100 mL). The combined organic layers were dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified on a silica gel chromatography (100-200 mesh silica gel, 0-100% EtOAc in PE) to give tert-butyl 5-bromo-3-oxo-2,3-dihydrobenzofuran-2-carboxylate (3.2 g, 59% yield) as a white solid. LC-MS (ESI): mass calcd. for C13H13BrO4, 312.0; m/z found, 313.0 [M+H]+.
To a solution of tert-butyl 5-bromo-3-oxo-2,3-dihydrobenzofuran-2-carboxylate (3.2 g, 10.2 mmol, 1.0 eq.) in Toluene (50 mL) was added thyl 2-(triphenyl-15-phosphaneylidene)acetate (5.3 g, 15.3 mmol, 1.5 eq.) to the reaction mixture at room temperature. The reaction mixture was stirred at 110° C. for 12 hours. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (3×50 mL) and washed with brine (60 mL). The combined organic layers were dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified on a silica gel chromatography (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford tert-butyl 5-bromo-3-(2-ethoxy-2-oxoethyl)benzofuran-2-carboxylate (2.0 g, 51% yield) as a white solid.. LC-MS (ESI): mass calcd. for C17H19BrO5, 382.0; m/z found, 383.0 [M+H]+.
To a solution of tert-butyl 5-bromo-3-(2-ethoxy-2-oxoethyl)benzofuran-2-carboxylate (2.0 g, 5.2 mmol, 1.0 eq.) in DCM (6.0 mL) was added TFA (1.0 mL) at 0° C. The mixture was stirred at 25° C. for 1 hour. The reaction mixture was concentrated to give give 5-bromo-3-(2-ethoxy-2-oxoethyl)benzofuran-2-carboxylic acid (1.6 g, 94% yield) as a white solid.
LC-MS (ESI): mass calcd. for C13H11BrO5, 326.0; m/z found, 327.0 [M+H]+.
To a solution of 5-bromo-3-(2-ethoxy-2-oxoethyl)benzofuran-2-carboxylic acid (1.6 g, 4.9 mmol, 1.0 eq.) and Selectfluor (3.5 g, 9.8 mmol, 2.0 eq.) in DCE (20 mL) and H2O(10 mL) was added KF (1.2 g, 19.6 mmol, 4.0 eq.). at room temperature. The reaction mixture was stirred at 70° C. for 12 hours. The resulting solution was diluted with 50 mL of water and extracted with DCM (3×30 mL) and washed with brine (60 mL). The combined organic layers were dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified on a silica gel chromatography (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford ethyl 2-(5-bromo-2-fluorobenzofuran-3-yl)acetate (1.0 g, 68% yield) as a white solid..
LC-MS (ESI): mass calcd. for C12H10BrFO3, 300.0; m/z found, 301.0 [M+H]+.
To a solution of methyl 5-bromo-2-hydroxybenzoate (10 g, 43.3 mmol, 1.0 eq.) and methyl 2-bromopropanoate (8.67 g, 51.9 mmol, 1.2 eq.) in acetone (150 mL) was added K2CO3 (17.9 g, 130 mmol, 3.0 eq.) at room temperature. The mixture was stirred reflux for 4 hours. The resulting solution was filtered through a Celite pad and filtrate was concentrated under reduced pressure to afford methyl 5-bromo-2-((1-methoxy-1-oxopropan-2-yl)oxy)benzoate (12.0 g, 87% yield) as a yellow oil. LC-MS (ESI): mass calcd. for C12H13BrO5, 316.0; m/z found, 317.0 [M+H]+.
To a solution of methyl 5-bromo-2-((1-methoxy-1-oxopropan-2-yl)oxy)benzoate (7.0 g, 22.0 mmol, 1.0 eq.) in THF (50 mL) and MeOH (50 mL) was added NaOH (22 mL, 5M in H2O) at room temperature. The mixture was stirred at 85° C. for 12 hours. The resulting suspension is concentrated by rotary evaporation. The residue is dissolved in water and acidified with an aqueous concentrated HCl solution under cooling with ice. The aqueous phase is extracted twice with EtOAc and the combined organic layers are washed with brine, dried over Na2SO4, filtered and concentrated at reduced pressure to afford 5-bromo-2-(1-carboxyethoxy)benzoic acid (5.0 g, 78% yield) as a beige solid. LC-MS (ESI): mass calcd. for C10H9BrO5, 288.0; m/z found, 289.0 [M+H]+.
To a solution of 5-bromo-2-(1-carboxyethoxy)benzoic acid (2.0 g, 6.92 mmol, 1.0 eq.) in AcOH (20 mL) was added AcONa (1.4 g, 17.3 mmol, 2.5 eq.) at room temperature. The mixture was stirred at 150° C. for 3 hours. After cooling to room temperature, the reaction mixture is carefully quenched with ice water (20 mL). A white precipitate is formed which is collected by suction filtration, thoroughly washed with water and dried to afford 5-bromo-2-methylbenzofuran-3-yl acetate (1.0 g, 53% yield) as a white solid. LC-MS (ESI): mass calcd. for C11H9BrO3, 268.0; m/z found, 269.0 [M+H]+.
To a solution of of 5-bromo-2-methylbenzofuran-3-yl acetate (1.0 g, 3.7 mmol, 1.0 eq.) in MeOH (10 mL) was added HCl solution (5 mL, 1 M) at room temperature. The mixture was stirred at 75° C. for 3 hours. After cooling to room temperature, the reaction mixture is concentrated by rotary evaporation. The resulting solution was diluted with 20 mL of water and extracted with EtOAc (3×20 mL) and washed with brine (20 mL). The combined organic layers were dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified on a silica gel chromatography (100-200 mesh silica gel, 0-70% EtOAc in PE) to give 5-bromo-2-methylbenzofuran-3(2H)-one (0.5 g, 59% yield) as a yellow oil.
LC-MS (ESI): mass calcd. for C9H7BrO2, 226.0; m/z found, 227.0 [M+H]+.
To a solution of 7-bromo-5-methoxy-1,3-dimethylquinolin-2(1H)-one (500 mg, 1.8 mmol, 1 eq.) in 1,4-Dioxane: H2O(11 mL, 10:1) was added tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,6-dihydropyridine-1(2H)-carboxylate (1.1 g, 3.5 mmol, 2 eq.), Pd(dppf)Cl2 (130 mg, 177 μmol, 0.1 eq.) and K2CO3 (735 mg, 5.3 mmol, 3 eq.) at 25° C. The mixture was then stirred at 100° C. for 4 hours under N2 atmosphere. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-40% EtOAc in PE) to give tert-butyl 4-(5-methoxy-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-7-yl)-3,6-dihydropyridine-1(2H)-carboxylate (500 mg, 73% yield) as a yellow oil. LC-MS (ESI): mass calcd. for C22H28N2O4, 384.2; m/z found, 385.1 [M+H]+.
To a solution of tert-butyl 4-(5-methoxy-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-7-yl)-3,6-dihydropyridine-1(2H)-carboxylate (500 mg, 1.3 mmol, 1 eq.) in MeOH (30 mL) was added Pd/C (100 mg, 940 μmol, 0.7 eq.) at 25° C. The mixture was then stirred at 30° C. for 16 hours under H2 atmosphere. The mixture was filtered and the filtrate was concentrated under vacuum to afford tert-butyl 4-(5-methoxy-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-7-yl)piperidine-1-carboxylate (500 mg, crude) as a white solid. LC-MS (ESI): mass calcd. for C22H30N2O4, 386.2; m/z found, 387.1 [M+H]+.
To a solution of tert-butyl 4-(5-methoxy-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-7-yl)piperidine-1-carboxylate (500 mg, 1.3 mmol, 1 eq.) in DCM: TFA (12 mL, 5:1) was added at 0° C. The mixture was then stirred at 25° C. for 1 hour under N2 atmosphere. The mixture was filtered and the filtrate was concentrated under vacuum to afford 5-methoxy-1,3-dimethyl-7-(piperidin-4-yl)quinolin-2(1H)-one (370 mg, crude) as a yellow oil. LC-MS (ESI): mass calcd. for C17H22N2O2, 286.2; m/z found, 287.1 [M+H]+.
To a solution of 5-methoxy-1,3-dimethyl-7-(piperidin-4-yl)quinolin-2(1H)-one (370 mg, 1.3 mmol, 1 eq.) in DCM (10 mL) was added tetrahydro-2H-pyran-4-carbonyl chloride (384 mg, 2.6 mmol, 2 eq.) and TEA (450 μL, 3.2 mmol, 2.5 eq.) at 0° C. The mixture was then stirred at 25° C. for 1 hour under N2 atmosphere. The resulting solution was diluted with 50 mL of water and extracted with DCM (50 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to give 5-methoxy-1,3-dimethyl-7-(1-(tetrahydro-2H-pyran-4-carbonyl)piperidin-4-yl)quinolin-2(1H)-one (470 mg, 91% yield) as a white solid. LC-MS (ESI): mass calcd. for C23H30N2O4, 398.2; m/z found, 399.2 [M+H]+.
To a solution of 5-methoxy-1,3-dimethyl-7-(1-(tetrahydro-2H-pyran-4-carbonyl)piperidin-4-yl)quinolin-2(1H)-one (430 mg, 1.1 mmol, 1 eq.) in DMF (10 mL) was added EtSNa (908 mg, 10.8 mmol, 10 eq.) at 25° C. The mixture was then stirred at 110° C. for 3 hours under N2 atmosphere. The resulting solution was diluted with 30 mL of water and extracted with EtOAc (30 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-5% MeOH in DCM) to give 5-hydroxy-1,3-dimethyl-7-(1-(tetrahydro-2H-pyran-4-carbonyl)piperidin-4-yl)quinolin-2(1H)-one (350 mg, 84% yield) as a white solid. LC-MS (ESI): mass calcd. for C22H28N2O4, 384.2; m/z found, 385.3 [M+H]+.
To a solution of 5-hydroxy-1,3-dimethyl-7-(1-(tetrahydro-2H-pyran-4-carbonyl)piperidin-4-yl)quinolin-2(1H)-one (200 mg, 520 μmol, 1 eq.) in DCM (5 mL) was added Phenyl triflimide (279 mg, 780 μmol, 1.5 eq.) and TEA (218 μL, 1.6 mmol, 3 eq.) at 0° C. The mixture was then stirred at 25° C. for 1 hour under N2 atmosphere. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-3% MeOH in DCM) to give 1,3-dimethyl-2-oxo-7-(1-(tetrahydro-2H-pyran-4-carbonyl)piperidin-4-yl)-1,2-dihydroquinolin-5-yl trifluoromethanesulfonate (150 mg, 56% yield) as a yellow oil.
LC-MS (ESI): mass calcd. for C23H27F3N2O6S, 516.2; m/z found, 517.2 [M+H]+.
To a solution of 6-bromo-4-isopropyl-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (2.5 g, 8.8 mmol, 1.0 eq.) in 1,4-Dioxane (30 mL) was added 6-methoxypyridin-3-amine (1.6 g, 13 mmol, 1.5 eq.), Ru-Phos (820 mg, 1.8 mmol, 0.2 eq.), Ru-Phos Pd G1 (1.3 g, 1.8 μmol, 0.2 eq.) and Cs2CO3 (8.6 g, 27 mmol, 3.0 eq.). The reaction was stirred at 100° C. for 3 hours under N2 atmosphere. The mixture was filtered through a Celite pad and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford 4-isopropyl-6-((6-methoxypyridin-3-yl)amino)-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (1.5 g, 52% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C18H22N4O2, 326.2; m/z found, 327.2 [M+H]+.
To a solution of 4-isopropyl-6-((6-methoxypyridin-3-yl)amino)-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (1.2 g, 3.7 mmol, 1.0 eq.) in DMF (100 mL) was added NaH (260 mg, 7.4 mmol, 2.0 eq., w.t.=60% in oil) at 25° C. The reaction was stirred at 25° C. for 20 mins, then added CS2 (1.1 mL, 18.4 mmol, 5.0 eq.) and stirred at 25° C. for 20 mins, then added CH3I (1.2 mL, 18.4 mmol, 5.0 eq.). The reaction was stirred at 25° C. for 2 hours. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford methyl (7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)(6-methoxypyridin-3-yl)carbamodithioate (1.2 g, 78% yield) as a yellow oil. LC-MS (ESI): mass calcd. for C20H24N402S2, 416.1; m/z found, 417.1 [M+H]+.
To a solution of methyl (7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)(6-methoxypyridin-3-yl)carbamodithioate (460 mg, 1.1 mmol, 1.0 eq.) in DCM (15 mL) was added Py.HF (0.5 mL, 5.5 mmol, 5.0 eq.) and NBS (786 mg, 4.4 mmol, 4.0 eq.) at −60° C. The reaction was stirred at −60° C. for 1 hour under N2 atmosphere. The mixture was diluted with sat. NaHSO4 solution, extracted with EtOAc (10 mL×3) and the layers were separated. The organic layer was washed with 1 N HCl (10 mL) and brine (30 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (100-200 mesh silica gel, 0-50% EtOAc in PE) to afford 4-isopropyl-6-((6-methoxypyridin-3-yl)(trifluoromethyl)amino)-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (160 mg, 37% yield) as a yellow oil. LC-MS (ESI): mass calcd. for C19H21F3N4O2, 394.2; m/z found, 395.2 [M+H]+.
To a solution of 4-isopropyl-6-((6-methoxypyridin-3-yl)(trifluoromethyl)amino)-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (160 mg, 406 μmol, 1.0 eq.) in MeCN (10 mL) was added TMSCl (103 μL, 811 μmol, 2.0 eq.) and KI (135 mg, 811 μmol, 2.0 eq.). The reaction was stirred at 80° C. for 2 hours. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% MeOH in DCM) to afford 6-((6-hydroxypyridin-3-yl)(trifluoromethyl)amino)-4-isopropyl-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (150 mg, 97% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C18H19F3N4O2, 380.1; m/z found, 381.1 [M+H]+.
To a solution of 6-((6-hydroxypyridin-3-yl)(trifluoromethyl)amino)-4-isopropyl-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (130 mg, 342 μmol, 1.0 eq.) in DCM (13.0 mL) was added Tf2O (85.9 μL, 513 μmol, 1.5 eq.) and TEA (143 μL, 1.0 mmol, 3.0 eq.) at 0° C. The reaction was stirred at 25° C. for 1 hour under N2 atmosphere. The resulting solution was diluted with 20 mL of water and extracted with DCM (20 mL×3). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to afford 5-((7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)(trifluoromethyl)amino)pyridin-2-yl trifluoromethanesulfonate (140 mg, 80% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C19H18F6N404S, 512.1; m/z found, 513.1 [M+H]+.
To a solution of 1-(3-fluoro-2-hydroxyphenyl)ethan-1-one (5 g, 32.4 mmol, 1.0 eq.) in MeCN (50 mL) was added Ammonium acetate (250 mg, 3.2 mmol, 0.1 eq.) and NBS (6.4 g, 35.7 mmol, 1.1 eq.) under N2, the mixture was stirred at 25° C. for 2 hours to give yellow solution.
LCMS showed the reaction was completed. The resulting solution was diluted with 500 mL of water and extracted with EtOAc (3×300 mL). The combined organic layers were washed with brine (500 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜50% EtOAC in PE) to afford 1-(5-bromo-3-fluoro-2-hydroxyphenyl)ethan-1-one (6 g, yield 75%) as a yellow solid. LC-MS (ESI): mass calcd. for C8H6BrFO2, 232.0/234.0; m/z found, 233.0/235.0 [M+H]+.
To a solution of CuBr2 (9.8 g, 43.8 mmol, 2.0 eq.) in EtOAc (50 mL) was stirred at 80° C. under N2, then added 1-(5-bromo-3-fluoro-2-hydroxyphenyl)ethan-1-one (5.1 g, 22 mmol, 1.0 eq.) with CHCl3 (50 mL), the mixture was stirred at 80° C. for 16 hours to give brown solution.
LCMS showed the reaction was completed. The resulting solution was diluted with 200 mL of water and extracted with DCM (3×100 mL). The combined organic layers were washed with brine (200 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜30% EtOAC in PE) to afford 2-bromo-1-(5-bromo-3-fluoro-2-hydroxyphenyl)ethan-1-one (6 g, yield 70%) as a yellow oil. LC-MS (ESI): mass calcd. for C8H5Br2FO2, 309.9; m/z found, 308.9 [M−H]−
To a solution of 2-bromo-1-(5-bromo-3-fluoro-2-hydroxyphenyl)ethan-1-one (3.9 g, 12.5 mmol, 1.0 eq.) in MeOH (50 mL) was added NaOAc (4.1 g, 50 mmol, 4.0 eq.) under N2, the mixture was stirred at 25° C. for 2 hours to give red solution. TLC showed the reaction was completed. The resulting solution was diluted with 200 mL of water and extracted with DCM (3×100 mL). The combined organic layers were washed with brine (200 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0% ˜30% EtOAC in PE) to afford 5-bromo-7-fluorobenzofuran-3(2H)-one (270 mg, yield 8.9%) as a yellow solid. The product was no Ms signal. 1H NMR (400 MHz, DMSO-d6) δ8.20-7.90 (m, 1H), 7.68 (dd, J=4.1, 1.9 Hz, 1H), 4.96 (d, J=1.3 Hz, 2H).
To a solution of 4-bromoindoline-2,3-dione (3.0 g, 13.3 mmol, 1.0 eq.) and K2CO3 (2.8 g, 19.9 mmol, 1.5 eq.) in DMF (30 mL) was added CH3I (2.6 mL, 39.8 mmol, 3.0 eq.). The mixture was stirred for 10 minutes at room temperature and then warmed to 80° C. for 12 hours.
The resulting solution was diluted with 50 mL of water and extracted with EtOAc (3×50 mL) and washed with brine (60 mL). The combined organic layers were dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified on a silica gel chromatography (100-200 mesh silica gel, 0-100% EtOAc in PE) to give 4-bromo-1-methylindoline-2,3-dione (2.8 g, 87% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C9H6BrNO2, 239.0; m/z found, 240.0 [M+H]+.
To a solution of 4-bromo-1-methylindoline-2,3-dione (1.0 g, 4.2 mmol, 1.0 eq.) and TEA (1.2 mL, 8.4 mmol, 2.0 eq.) in EtOH (15 mL) was added dropwise TMSCH2N2 (1.2 mL, 8.4 mmol, 2.0 eq.) at room temperature. The reaction mixture was stirred at room temperature for 12 hours. The resulting solution was diluted with 10 mL of 2 N HCl and extracted with EtOAc (3×20 mL) and washed with brine (20 mL). The combined organic layers were dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified on a silica gel chromatography (100-200 mesh silica gel, 0-100% EtOAc in PE) to give 5-bromo-3-hydroxy-1-methylquinolin-2(1H)-one (700 mg, 66% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C10HsBrNO2, 253.0; m/z found, 254.0 [M+H]+.
To a solution of 5-bromo-3-hydroxy-1-methylquinolin-2(1H)-one (300 mg, 1.2 mmol, 1.0 eq.) and NaH (57 mg, 2.4 mmol, 2.0 eq., w.t. =60% in oil) in DMF (10 mL) at 0° C. The reaction was stirred the same temperature for 30 minutes. CH3I (229 μL, 3.6 mmol, 1.0 eq.) was added dropwise to the mixture. The reaction mixture was stirred at room temperature for 12 hours. The resulting solution was diluted with 20 mL of H2O and extracted with EtOAc (3×30 mL) and washed with brine (20 mL). The combined organic layers were dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue was purified on a silica gel chromatography (100-200 mesh silica gel, 0-100% EtOAc in PE) to give 5-bromo-3-methoxy-1-methylquinolin-2(1H)-one (150 mg, 47% yield) as a yellow oil.
LC-MS (ESI): mass calcd. for C11H10BrNO2, 267.0; m/z found, 268.0 [M+H]+.
To a solution of 5-bromobenzofuran-3(2H)-one (10 g, 46.9 mmol, 1.0 eq.) in Tol (150 mL) was added ethyl 2-(triphenyl-15-phosphaneylidene)acetate (33 g, 93.8 mmol, 2.0 eq.).
The mixture was stirred at 110° C. for 16 hours under N2 atmosphere. After cooled to room temperature, the resulting solution was diluted with 300 mL of water and extracted with EtOAc (100 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-9% EtOAc in PE) to give ethyl 2-(5-bromobenzofuran-3-yl)acetate (7.3 g, yield 55%) as a yellow oil. LC-MS (ESI): mass calcd. for C12H11BrO3, 281.9/283.9; m/z found, 283.2/285 [M+H]+.
To a mixture of ethyl 2-(5-bromobenzofuran-3-yl)acetate (7.3 g, 25.8 mmol, 1.0 eq.) and t-BuOK (3.5 g, 30.9 mmol, 1.2 eq.) in DMF (80 mL) was added acrylamide (2.2 g, 30.9 mmol, 1.2 eq.) at 0° C. under N2. The mixture was stirred at 0° C. for 3 hours under N2. The resulting solution was diluted with 300 mL of water and extracted with EtOAc (100 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-70% EtOAc in PE) to give 3-(5-bromobenzofuran-3-yl)piperidine-2,6-dione (4.5 g, yield 56%) as a white solid. LC-MS (ESI): mass calcd. for C13H10BrNO3, 306.9/308.9; m/z found, 308.1/310.1 [M+H]+.
To a solution of 3-(5-bromobenzofuran-3-yl)piperidine-2,6-dione (3.5 g, 11.0 mmol, 1.0 eq.), Pd(PPh3)C12 (797 mg, 1.1 mmol, 0.1 eq.), CuI (216 mg, 1.1 mmol, 0.1 eq.) and TEA (15.5 mL, 110 mmol, 10 eq.) in DMF (40 mL) was added tert-butyl prop-2-yn-1-ylcarbamate (7.0 g, 45.4 mmol, 4.0 eq.). The mixture was stirred at 80° C. for 16 hours under N2. After cooled to room temperature, the resulting solution was diluted with 300 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give tert-butyl (3-(3-(2,6-dioxopiperidin-3-yl)benzofuran-5-yl)prop-2-yn-1-yl)carbamate (2.3 g, yield 31%) as a yellow solid. LC-MS (ESI): mass calcd. for C21H22N2O5, 382.1; m/z found, 381.4 [M−H]−. 1HNMR (400 MHz, DMSO) δ 10.90 (s, 1H), 7.96 (s, 1H), 7.69 (s, 1H), 7.59-7.56 (m, 1H), 7.34 (dd, J=8.5, 1.6 Hz, 2H), 4.18-4.13 (m, 1H), 4.01-3.96 (m, 2H), 2.73-2.66 (m, 1H), 2.61-2.55 (m, 1H), 2.38-2.31 (m, 1H), 2.12-2.06 (m, 1H), 1.40 (s, 9H).
1 g of racemate was separated by SFC [Instrument: SHIMADZU PREP SOLUTION SFC; Column: (R,R)-WHELK, 250×20 mm I.D., 5 μm; Column temperature: 35° C.; Mobile phase: A for CO2 and B for MeOH; Gradient: B 50%; Flow rate: 40 mL/min]to give two enantiomers; tert-butyl (S*)-(3-(3-(2,6-dioxopiperidin-3-yl)benzofuran-5-yl)prop-2-yn-1-yl)carbamate (P1, 420 mg) and tert-butyl (R*)-(3-(3-(2,6-dioxopiperidin-3-yl)benzofuran-5-yl)prop-2-yn-1-yl)carbamate (P2, 420 mg).
To a solution of tert-butyl (S*)-(3-(3-(2,6-dioxopiperidin-3-yl)benzofuran-5-yl)prop-2-yn-1-yl)carbamate or tert-butyl (R*)-(3-(3-(2,6-dioxopiperidin-3-yl)benzofuran-5-yl)prop-2-yn-1-yl)carbamate (200 mg) in DCM (10 mL) was added TFA (1 mL) at 0° C. and stirred at this temperature for 2 hours. The mixture was concentrated under reduced pressure which was directly used for next step to give (S*)-3-(5-(3-aminoprop-1-yn-1-yl)benzofuran-3-yl)piperidine-2,6-dione TFA salt or (R*)-3-(5-(3-aminoprop-1-yn-1-yl)benzofuran-3-yl)piperidine-2,6-dione TFA salt as a yellow oil. LC-MS (ESI): mass calcd. for C16H14N2O3, 282.1; m/z found, 283 [M+H]+.
To a mixture of 4-bromobenzofuran (10.0 g, 50.8 mmol, 1.0 eq.) in THF (100 mL) was added LDA (35.0 mL, 1.2 eq., 2.0 μmol/L in THF) at −78° C. The mixture was stirred at −78° C. for 30 min, Then 12 (15.5 g, 60.9 mmol, 1.2 eq.) was added to this mixture at −78° C. The mixture was stirred at room temperature for 1 hour. The resulting solution was diluted with 100 mL of NH4Cl solution and extracted with EtOAc (400 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to give 4-bromo-2-iodobenzofuran (13.0 g, 79% yield) as a solid. LC-MS (ESI): mass calcd. for C8H4BrIO, 321.8; m/z found, 322.9 [M+H]+.
To a solution of 4-bromo-2-iodobenzofuran (13.0 g, 40.3 mmol, 1.0 eq.), TEA (56.1 mL, 10.0 eq.), Pd(PPh3)Cl2 (2.8 g, 4.03 mmol, 0.1 eq.) and CuI (767 mg, 4.03 mmol, 0.1 eq.) in DMF (100 mL) was added tert-butyl prop-2-yn-1-ylcarbamate (7.5 g, 48.3 mmol, 1.2 eq.) at room temperature. The mixture was stirred at room temperature for 3 hours under N2 atmosphere. The resulting solution was diluted with 200 mL of H2O and extracted with EtOAc (200 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to give to give tert-butyl (3-(4-bromobenzofuran-2-yl)prop-2-yn-1-yl)carbamate (10.5 g, 75% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C16H16BrNO3, 349.0; m/z found, 350.1 [M+H]+.
To a mixture of tert-butyl (3-(4-bromobenzofuran-2-yl)prop-2-yn-1-yl)carbamate (10.5 g, 30.1 mmol, 1.0 eq.), Pd(dppf)Cl2 (2.2 g, 3.0 mmol, 0.1 eq.) and 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoxazole (7.0 g, 36.1 mmol, 1.2 eq.) in DMSO (100 mL) and H2O(10 mL) was added KF (5.2 g, 90.2 mmol, 3.0 eq.) at room temperature. The mixture was stirred at 90° C. for 3 hours under N2 atmosphere. The resulting solution was diluted with 50 mL of H2O and extracted with EtOAc (200 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to give tert-butyl (3-(4-(isoxazol-4-yl)benzofuran-2-yl)prop-2-yn-1-yl)carbamate (6.5 g, crude) as a brown solid. LC-MS (ESI): mass calcd. for C19H18N2O4, 338.1; m/z found, 339.2 [M+H]+.
To a mixture of tert-butyl (3-(4-(isoxazol-4-yl)benzofuran-2-yl)prop-2-yn-1-yl)carbamate (6.5 g, 19.2 mmol, 1.0 eq.) in MeOH (45 mL) and H2O(15 mL) was added KF (3.3 g, 57.6 mmol, 3.0 eq.) at room temperature. The mixture was then stirred at 90° C. for 30 mins under N2 atmosphere. The resulting solution was diluted with 50 mL of H2O and extracted with EtOAc (100 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to give tert-butyl (3-(4-(cyanomethyl)benzofuran-2-yl)prop-2-yn-1-yl)carbamate (3.2 g, 31.4% yield two steps) as a yellow solid. LC-MS (ESI): mass calcd. for C18H18N2O3, 310.1; m/z found, 311.2 [M+H]+.
To a mixture of tert-butyl (3-(4-(cyanomethyl)benzofuran-2-yl)prop-2-yn-1-yl)carbamate (2.0 g, 6.5 mmol, 1.0 eq.) in DMF (20 mL) was added K2CO3 (2.7 g, 19.5 mmol, 3.0 eq.) and methyl acrylate (731.0 mg, 8.5 mmol, 1.3 eq.) at room temperature. The mixture was then stirred at 50° C. for 1 hour under N2 atmosphere. The resulting solution was diluted with 50 mL of H2O and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to give ethyl 4-(2-(3-((tert-butoxycarbonyl)amino)prop-1-yn-1-yl)benzofuran-4-yl)-4-cyanobutanoate (800 mg, 31.4% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C22H24N2O5, 396.2; m/z found, 397.3 [M+H]+.
To a mixture of methyl 4-(2-(3-((tert-butoxycarbonyl)amino)prop-1-yn-1-yl)benzofuran-4-yl)-4-cyanobutanoate (800 mg, 2.0 mmol, 1.0 eq.) in Tol (10 mL) was added InCl3 (45 mg, 0.2 mmol, 0.1 eq.) and (E)-acetaldehyde oxime (358 mg, 6.0 mmol, 3.0 eq.) at room temperature. The mixture was stirred at 110° C. for 2 hours under N2 atmosphere. The resulting solution was diluted with 50 mL of H2O and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to give methyl 5-amino-4-(2-(3-((tert-butoxycarbonyl)amino)prop-1-yn-1-yl)benzofuran-4-yl)-5-oxopentanoate (600 mg, 72% yield) as a white solid. LC-MS (ESI): mass calcd. for C22H26N2O6, 414.2; m/z found, 415.3 [M+H]+.
To a solution of methyl 5-amino-4-(2-(3-((tert-butoxycarbonyl)amino)prop-1-yn-1-yl)benzofuran-4-yl)-5-oxopentanoate (600 mg, 1.4 mmol, 1.0 eq.) in THF (10 mL) was added t-BuOK (157 mg, 1.4 mmol, 1.0 eq.) at 0° C. with stirring. The mixture was stirred at 0° C. for 30 min under N2 atmosphere. The resulting solution was diluted with 50 mL of H2O and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to give tert-butyl(3-(4-(2,6-dioxopiperidin-3-yl)benzofuran-2-yl)prop-2-yn-1-yl)carbamate (400 mg, 72% yield) as a white solid. LC-MS (ESI): mass calcd. for C21H22N2O5, 382.2; m/z found, 383.3 [M+H]+. 1H NMR (400 MHz, DMSO-d6) δ 10.89 (s, 1H), 7.51-7.42 (m, 2H), 7.37-7.33 (m, 1H), 7.27 (s, 1H), 7.13 (d, J=7.3 Hz, 1H), 4.22 (dd, J=12.2, 4.9 Hz, 1H), 4.09-4.03 (m, 2H), 2.76-2.67 (m, 1H), 2.58-2.52 (m, 1H), 2.39-2.31 (m, 1H), 2.07-2.00 (m, 1H), 1.41 (s, 9H).
Racemic tert-butyl (3-(4-(2,6-dioxopiperidin-3-yl)benzofuran-2-yl)prop-2-yn-1-yl)carbamate (5.00 g, 1 Eq, 13.1 mmol) was chiral separated by SFC [Instrument: SHIMADZU PREP SOLUTION SFC; Column: (R,R)-WHELK, 250×20 mm I.D., 5 ptm; Column temperature: 35° C.; Mobile phase: A for CO2 and B for MeOH; Gradient: B 50%; Flow rate: 40 mL/min]to give tert-butyl (R*)-(3-(4-(2,6-dioxopiperidin-3-yl)benzofuran-2-yl)prop-2-yn-1-yl)carbamate (2.10 g, 5.49 mmol, 42.0%) and tert-butyl (S*)-(3-(4-(2,6-dioxopiperidin-3-yl)benzofuran-2-yl)prop-2-yn-1-yl)carbamate (2.20 g, 5.75 mmol, 44.0%) as a yellow solid.
To a solution of tert-butyl (S tert-butyl (3-(4-(2,6-dioxopiperidin-3-yl)benzofuran-2-yl)prop-2-yn-1-yl)carbamate or tert-butyl (R*)-tert-butyl (3-(4-(2,6-dioxopiperidin-3-yl)benzofuran-2-yl)prop-2-yn-1-yl)carbamate (200 mg) in DCM (100 mL) was added TFA (1 mL) at 0° C. and stirred at this temperature for 2 hours. The mixture was concentrated under reduced pressure which was directly used for next step to give (R*)-3-(2-(3-aminoprop-1-yn-1-yl)benzofuran-4-yl)piperidine-2,6-dione TFA salt or (S*)-3-(2-(3-aminoprop-1-yn-1-yl)benzofuran-4-yl)piperidine-2,6-dione TFA salt as a yellow oil. LC-MS (ESI): mass calcd. for C16H14N2O3, 282.1; m/z found, 283 [M+H]+.
To a mixture of 6-bromo-7-fluoro-1H-indazole (900 mg, 4.2 mmol, 1 eq.) and 3-bromopiperidine-2,6-dione (1.6 g, 8.4 mmol, 2 eq.) in THF (15 mL) was added t-BuOK (1.4 g, 12.6 mmol, 3 eq.) at room temperature under N2 atmosphere. The reaction mixture was stirred at 50° C. for 16 hours. The mixture was then diluted with water and extracted with EtOAc. The combined organic layers were washed with brine, dried over anhydrous Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give 3-(6-bromo-7-fluoro-1H-indazol-1-yl)piperidine-2,6-dione (250 mg, 18% yield) as a white solid.
LC-MS (ESI): mass calcd. for C12H9BrFN3O2, 325.0/327.0; m/z found, 326.0/328.0 [M+H]+.
To a mixture of 3-(6-bromo-7-fluoro-1H-indazol-1-yl)piperidine-2,6-dione (120 mg, 368 μmol, 1 eq.) and tert-butyl prop-2-yn-1-ylcarbamate (86 mg, 552 μmol, 1.5 eq.) in DMF (8 mL) and TEA (1 mL, 20 eq.) was added Pd(PPh3)C12 (39 mg, 55.2 μmol, 0.15 eq.) and CuI (11 mg, 55.2 μmol, 0.15 eq) at room temperature. The reaction mixture was stirred at 80° C. for 16 hours under N2 atmosphere. The mixture was diluted with water and extracted with EtOAc. The combined organic layers were washed with brine, dried over anhydrous Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0-80% EtOAc in PE) to give tert-butyl (3-(1-(2,6-dioxopiperidin-3-yl)-7-fluoro-1H-indazol-6-yl)prop-2-yn-1-yl)carbamate (40 mg, 27% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C20H21FN4O4, 400.2; m/z found, 401.2 [M+H]+.
A solution of tert-butyl (3-(1-(2,6-dioxopiperidin-3-yl)-7-fluoro-1H-indazol-6-yl)prop-2-yn-1-yl)carbamate (40 mg, 100 μmol, 1 eq.) in DCM (3 mL) was treated with TFA (1 mL) at 0° C. The reaction mixture was stirred at 0° C. for 2 hours. The reaction mixture was directly concentrated under reduced pressure to give 3-(6-(3-aminoprop-1-yn-1-yl)-7-fluoro-1H-indazol-1-yl)piperidine-2,6-dione (40 mg, crude, TFA salt).
LC-MS (ESI): mass calcd. for C15H13FN4O2, 300.1; m/z found, 301.1 [M+H]+.
To a mixture of 3-(6-(3-aminoprop-1-yn-1-yl)-7-fluoro-1H-indazol-1-yl)piperidine-2,6-dione (40 mg, 100 μmol, 1.2 eq.) and 5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinic acid (38 mg, 83 μmol, 1 eq.; Intermediate 2) in DMF (5 mL) was added HATU (63 mg, 166 μmol, 2 eq.) and DIPEA (57 μL, 333 μmol, 4 eq.) at 25° C. The reaction mixture was stirred at room temperature for 30 mins. The resulting solution was diluted with 20 mL of H2O and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by Prep-HPLC (Triant C18 5 μm column, 0-80% MeCN in H2O with 0.1% FA) to give N-(3-(1-(2,6-dioxopiperidin-3-yl)-7-fluoro-1H-indazol-6-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide (11.7 mg, 19% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C42H35FN8O4, 734.3; m/z found, 735.1 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.14 (s, 1H), 9.50 (d, J=2.1 Hz, 1H), 9.44-9.35 (m, 2H), 8.88-8.72 (m, 2H), 8.33-8.17 (m, 2H), 8.10 (d, J=8.3 Hz, 1H), 7.92 (t, J=7.7 Hz, 1H), 7.68 (d, J=7.1 Hz, 1H), 7.62 (d, J=8.3 Hz, 1H), 7.28 (s, 1H), 7.23-7.17 (m, 2H), 5.90 -5.76 (m, 1H), 4.45 (d, J=5.9 Hz, 2H), 3.81-3.72 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 3.01-2.91 (m, 1H), 2.75-2.63 (m, 2H), 2.42-2.34 (m, 1H), 1.34 (d, J=6.7 Hz, 6H).
To a solution of 3-iodoaniline (3.7 g, 17.2 mmol, 1.0 eq.) in EtOH (40 mL) was added methyl 3-oxocyclobutane-1-carboxylate (2 g, 15.4 mmol, 0.9 eq.) and trimethylsilylcyanide (2 mL, 15.4 mmol, 0.9 eq.). The reaction was stirred at 25° C. for 16 hours under N2. The resulting solution was diluted with 100 mL of H2O and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give methyl 3-cyano-3-((3-iodophenyl)amino)cyclobutane-1-carboxylate (3.3 g, 54% yield) as a white solid.
LC-MS (ESI): mass calcd. for C13H13IN2O2, 356.0; m/z found, 357.0 [M+H]+.
To a solution of methyl 3-cyano-3-((3-iodophenyl)amino)cyclobutane-1-carboxylate (2 g, 5.6 mmol, 1.0 eq.) in toluene (20 mL) was added indium trichloride (124 mg, 562 μmol, 0.1 eq.) and acetaldoxime (995 mg, 16.8 mmol, 3.0 eq.). The reaction was stirred at 110° C. for 2 hours under N2. The mixture was concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0-50% EtOAc in PE) to give methyl 3-carbamoyl-3-((3-iodophenyl)amino)cyclobutane-1-carboxylate (0.9 g, 43% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C13H15IN2O3, 374.0; m/z found, 375.0 [M+H]+.
To a solution of methyl 3-carbamoyl-3-((3-iodophenyl)amino)cyclobutane-1-carboxylate (500 mg, 1.3 mmol, 1.0 eq.) in MeCN (10 mL) was added benzyl(trimethyl)ammonium hydroxide (670 mg, 3.9 mmol, 3.0 eq.). The reaction was stirred at 25° C. for 1 hour under N2. The mixture was poured into water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to give 1-((3-iodophenyl)amino)-3-azabicyclo[3.1.1]heptane-2,4-dione (90 mg, 20% yield) as a white solid.
LC-MS (ESI): mass calcd. for C12H11IN2O2, 342.0; m/z found, 343.0 [M+H]+.
Steps D-F: N-(3-(3-((2,4-Dioxo-3-azabicyclo[3.1.1]heptan-1-yl)amino)phenyl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-]H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide
The title compound was prepared from 1-((3-iodophenyl)amino)-3-azabicyclo[3.1.1]heptane-2,4-dione according to the procedures described in Example A1, Steps B-D. N-(3-(3-((2,4-Dioxo-3-azabicyclo[3.1.1]heptan-1-yl)amino)phenyl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide (12.8 mg, 9% yield over 3 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C42H37N7O4, 703.3; m/z found, 704.5 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.73 (s, 1H), 9.49 (d, J=1.6 Hz, 1H), 9.40 (s, 1H), 9.29 (t, J=5.8 Hz, 1H), 8.82-8.75 (m, 2H), 8.21 (d, J=8.2 Hz, 1H), 8.10 (d, J=8.3 Hz, 1H), 7.95-7.89 (m, 1H), 7.68 (d, J=7.1 Hz, 1H), 7.28 (s, 1H), 7.21 (s, 1H), 7.08-6.99 (m, 1H), 6.64 (d, J=7.6 Hz, 1H), 6.49-6.44 (m, 2H), 6.42 (s, 1H), 4.34 (d, J=5.7 Hz, 2H), 3.80-3.71 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 2.99-2.94 (m, 1H), 2.79-2.72 (m, 2H), 2.49-2.45 (m, 2H), 1.35 (d, J=6.8 Hz, 6H).
To a solution of 6-bromo-1H-benzo[d][1,2,3]triazole (5 g, 25.4 mmol, 1.0 eq.) and 3-bromopiperidine-2,6-dione (9.7 g, 50.8 mmol, 2.0 eq.) in DMF (40 mL) was added t-BuOK (5.7 g, 50.8 mmol, 2.0 eq.). The mixture was stirred at 60° C. for 16 hours under N2 atmosphere. The resulting solution was diluted with 150 mL of H2O and extracted with EtOAc (80 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) and prep-HPLC (Triant C18 5 m column, 0-50% MeOH in H2O with 0.1% FA) to give 3-(6-bromo-1H-benzo[d][1,2,3]triazol-1-yl)piperidine-2,6-dione (120 mg, 3% yield) and 3-(5-bromo-1H-benzo[d][1,2,3]triazol-1-yl)piperidine-2,6-dione (110 mg, 2% yield)
LC-MS (ESI): mass calcd. for C11H9BrN4O2, 308.0/310.0; m/z found, 309/311 [M+H]+.
The title compound was prepared from 3-(6-bromo-1H-benzo[d][1,2,3]triazol-1-yl)piperidine-2,6-dione according to the procedures described in Example A1, Steps B-D. N-(3-(1-(2,6-Dioxopiperidin-3-yl)-1H-benzo[d][1,2,3]triazol-6-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide (48 mg, 16% yield over 3 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C41H35N9O4, 717.3; m/z found, 718.5 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.27 (s, 1H), 9.54-9.46 (m, 1H), 9.44-9.35 (m, 2H), 8.84-8.72 (m, 2H), 8.23 (d, J=8.2 Hz, 1H), 8.14-8.05 (m, 2H), 8.03 (s, 1H), 7.95-7.89 (m, 1H), 7.69 (d, J=7.1 Hz, 1H), 7.45 (d, J=8.7 Hz, 1H), 7.28 (s, 1H), 7.21 (s, 1H), 6.24 (dd, J=12.6, 5.0 Hz, 1H), 4.43 (d, J=5.8 Hz, 2H), 3.79-3.72 (m, 4H), 3.39 (s, 3H), 3.00-2.83 (m, 2H), 2.78-2.70 (m, 1H), 2.42-2.35 (m, 1H), 1.34 (d, J=6.8 Hz, 6H).
N-(3-(1-(2,6-Dioxopiperidin-3-yl)-3-methoxy-1H-indazol-6-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide was prepared from 6-bromo-3-methoxy-1H-indazole according to the procedures described in Example A1, Steps A-D. The title compound (12 mg, 5% yield over 4 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C43H38N8O5, 746.3; m/z found, 747.2 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.02 (s, 1H), 9.49 (d, J=1.7 Hz, 1H), 9.41-9.34 (m, 2H), 8.82-8.74 (m, 2H), 8.23 (d, J=8.3 Hz, 1H), 8.13-8.07 (m, 1H), 7.95-7.88 (m, 1H), 7.72-7.65 (m, 2H), 7.59 (d, J=8.3 Hz, 1H), 7.28 (s, 1H), 7.21 (d, J=1.2 Hz, 1H), 7.12-7.04 (m, 1H), 5.70 (dd, J=11.9, 5.1 Hz, 1H), 4.40 (d, J=5.9 Hz, 2H), 3.96 (s, 3H), 3.79-3.72 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 2.82-2.62 (m, 3H), 2.27-2.15 (m, 1H), 1.34 (d, J=6.8 Hz, 6H).
A solution of 5-bromo-3-iodo-1-methyl-1H-indazole (1.2 g, 3.5 mmol, 1.0 eq.) and tert-butyl 2-cyanoacetate (855 mg, 6.1 mmol, 1.7 eq.) in DMF (40 mL) was treated with CuI (67 mg, 356 μmol, 0.1 eq.), (1S,2S)-(+)-cyclohexane-1,2-diamine (81.3 mg, 712 μmol, 0.2 eq.) and Cs2CO3 (3.5 g, 10.7 mmol, 3.0 eq.) at room temperature. The mixture was stirred at 100° C. for 16 hours under N2 atmosphere. The resulting solution was diluted with 80 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (40 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash silica gel chromatography (100-200 mesh silica gel, 0-50% EtOAc in PE) to afford tert-butyl 2-(5-bromo-1-methyl-1H-indazol-3-yl)-2-cyanoacetate (800 mg, 64% yield) as a yellow oil.
LC-MS (ESI): mass calcd. for C15H16BrN3O2, 349.0/351.0; m/z found, 349.9/351.9 [M+H]+.
A solution of tert-butyl 2-(5-bromo-1-methyl-1H-indazol-3-yl)-2-cyanoacetate (800 mg, 2.3 mmol, 1.0 eq.) in MeCN (15 mL) was treated with K2CO3 (631 mg, 4.6 mmol, 2.0 eq.) and benzyl(triethyl)ammonium chloride (52 mg, 228 μmol, 0.1 eq.) at room temperature. The mixture was stirred at 90° C. for 30 mins. At this point, ethyl 3-bromopropanoate (827 mg, 4.6 mmol, 2.0 eq.) was added to the solution. The mixture was then stirred at 90° C. for 16 hours. The resulting solution was diluted with 60 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (40 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash silica gel chromatography (100-200 mesh silica gel, 0-50% EtOAc in PE) to give 1-(tert-butyl) 5-ethyl 2-(5-bromo-1-methyl-1H-indazol-3-yl)-2-cyanopentanedioate (500 mg, 49% yield) as a yellow oil.
LC-MS (ESI): mass calcd. for C20H24BrN3O4, 449.1/451.1; m/z found, 450.6/452.6 [M+H]+.
To a solution of 1-(tert-butyl) 5-ethyl 2-(5-bromo-1-methyl-1H-indazol-3-yl)-2-cyanopentanedioate (700 mg, 1.6 mmol, 1.0 eq.) in AcOH (16 mL) was added conc. H2SO4 (0.4 mL) at room temperature. The mixture was stirred at 120° C. for 2 hours. The reaction mixture was quenched by aq. NaHCO3 (40 mL), and the mixture was diluted with water (30 mL) and extracted with DCM (40 mL×3). The combined organic layers were washed brine (40 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash silica gel chromatography (100-200 mesh silica gel, 0-10% MeOH in DCM) to afford 3-(5-bromo-1-methyl-1H-indazol-3-yl)piperidine-2,6-dione (350 mg, 70% yield) as a white solid.
LC-MS (ESI): mass calcd. for C13H12BrN3O2, 321.0/323.0; m/z found, 321.9/323.9 [M+H]+.
A solution of 3-(5-bromo-1-methyl-1H-indazol-3-yl)piperidine-2,6-dione (200 mg, 621 μmol, 1.0 eq.) in DMF (8 mL) was treated with DBU (189 mg, 1.2 mmol, 2.0 eq.) at 0° C. Then, SEMCI (124 mg, 132 μL, 745 μmol, 1.2 eq.) was added at 0° C. The mixture was then stirred at room temperature for 16 hours. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (40 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash silica gel chromatography (100-200 mesh silica gel, 0-50% EtOAc in PE) to afford 3-(5-bromo-1-methyl-1H-indazol-3-yl)-1-((2-(trimethylsilyl)ethoxy)methyl)piperidine-2,6-dione (180 mg, 64% yield) as an yellow oil.
LC-MS (ESI): mass calcd. for C19H26BrN3O3Si, 451.1/453.1; m/z found, 925.2/927.2/929.2 [2M+Na]+.
To a mixture of 3-(5-bromo-1-methyl-1H-indazol-3-yl)-1-((2-(trimethylsilyl)ethoxy)methyl)piperidine-2,6-dione (130 mg, 287 μmol, 1.0 eq.) and Pd(PPh3)C12 (20 mg, 28.7 μmol, 0.1 eq.) in DMF (8 mL) was added CuI (6 mg, 28.7 μmol, 0.1 eq.), tricyclohexylphosphine (20 mg, 71.8 μmol, 0.25 eq.), TEA (401 μL, 2.87 mmol, 10 eq.), and tert-butyl prop-2-yn-1-ylcarbamate (54 mg, 345 μmol, 1.2 eq.) at 25° C. The mixture was stirred at 85° C. for 16 hours under N2 atmosphere. The reaction mixture was diluted with water (20 mL) and extracted with EtOAc (50 mL×3). The combined organic layers were washed brine (20 mL), dried over Na2SO4, and concentrated in vacuo. The residue was purified by flash silica gel chromatography (0-10% MeOH in DCM) to afford tert-butyl (3-(3-(2,6-dioxo-1-((2-(trimethylsilyl)ethoxy)methyl)piperidin-3-yl)-1-methyl-1H-indazol-5-yl)prop-2-yn-1-yl)carbamate (40 mg, 26% yield) as a yellow oil.
LC-MS (ESI): mass calcd. for C27H38N4O5Si, 526.3; m/z found, 549.2 [M+Na]+.
To a solution of tert-butyl (3-(3-(2,6-dioxo-1-((2-(trimethylsilyl)ethoxy)methyl)piperidin-3-yl)-1-methyl-1H-indazol-5-yl)prop-2-yn-1-yl)carbamate (40 mg, 76 μmol, 1.0 eq.) in DCM (6 mL) was added TFA (1 mL) at 0° C. The reaction mixture was stirred at 25° C. for 2 hours. The reaction mixture was then concentrated in vacuo to give 3-(5-(3-aminoprop-1-yn-1-yl)-1-methyl-1H-indazol-3-yl)-1-(hydroxymethyl)piperidine-2,6-dione (40 mg, crude, TFA salt) as a yellow solid.
LC-MS (ESI): mass calcd. for C17H18N4O3, 326.1; m/z found, 327.4 [M+H]+.
To a mixture of 5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinic acid (40 mg, 88.4 μmol, 1.0 eq.; Intermediate 2) in DMF (6 mL) was added 3-(5-(3-aminoprop-1-yn-1-yl)-1-methyl-1H-indazol-3-yl)-1-(hydroxymethyl)piperidine-2,6-dione (30 mg, 88.40 μmol, 1.0 eq.), HATU (67 mg, 176.8 μmol, 2.0 eq.), and DIEA (77 μL, 442.0 μmol, 5.0 eq.) at 0° C. The mixture was stirred at 25° C. for 2 hours. The reaction mixture was diluted with water (20 mL) and extracted with EtOAc (30 mL×3). The combined organic layers were washed brine (30 mL), dried over Na2SO4, and concentrated in vacuo. The residue was purified by flash silica gel chromatography (0-10% MeOH in DCM) to afford N-(3-(3-(1-(hydroxymethyl)-2,6-dioxopiperidin-3-yl)-1-methyl-1H-indazol-5-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide (45 mg, 67% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C44H4N8O5, 760.3; m/z found, 761.6 [M+H]+.
To a solution of N-(3-(3-(1-(hydroxymethyl)-2,6-dioxopiperidin-3-yl)-1-methyl-1H-indazol-5-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide (45 mg, 59.1 μmol, 1.0 eq.) in MeCN (5 mL) was added NH3·H2O(0.1 mL) at 0° C. The reaction mixture was stirred at 25° C. for 20 mins. The resulting mixture was then treated with TFA until a sample was measured to be pH=4. The neutralized mixture was concentrated under reduced pressure. The residue was purified by Prep-HPLC (Triant C18 5 μm column, 0-60% MeCN in H2O with 0.1% FA) to give N-(3-(3-(2,6-dioxopiperidin-3-yl)-1-methyl-1H-indazol-5-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide (2.2 mg, 5% yield) as a white solid.
LC-MS (ESI): mass calcd. for C43H38N8O4, 730.3; m/z found, 731.5 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.88 (s, 1H), 9.51-9.48 (m, 1H), 9.40 (s, 1H), 9.36-9.31 (m, 1H), 8.82-8.76 (m, 2H), 8.23 (d, J=8.3 Hz, 1H), 8.12-8.08 (m, 1H), 7.94-7.87 (m, 2H), 7.70-7.67 (m, 1H), 7.63-7.59 (m, 1H), 7.44-7.40 (m, 1H), 7.30-7.27 (m, 1H), 7.22-7.19 (m, 1H), 4.42-4.36 (m, 3H), 4.00 (s, 3H), 3.79-3.72 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 2.68-2.59 (m, 2H), 2.40-2.32 (m, 1H), 2.20-2.08 (m, 1H), 1.35 (d, J=6.8 Hz, 6H).
N-(3-(1-(2,6-Dioxopiperidin-3-yl)-1H-pyrazolo[4,3-c]pyridin-6-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide was prepared from 6-bromo-1H-pyrazolo[4,3-c]pyridine according to the procedures described in Example A1, Steps A-D. The title compound (18 mg, 2% yield over 4 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C41H35N9O4, 717.3; m/z found, 718.3 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.15 (s, 1H), 9.50 (d, J=1.7 Hz, 1H), 9.45-9.37 (m, 2H), 9.07 (s, 1H), 8.83-8.75 (m, 2H), 8.38 (s, 1H), 8.23 (d, J=8.2 Hz, 1H), 8.10 (d, J=8.3 Hz, 1H), 7.94-7.87 (m, 2H), 7.69 (d, J=7.0 Hz, 1H), 7.28 (d, J=1.3 Hz, 1H), 7.21 (d, 1H), 6.00-5.87 (m, 1H), 4.42 (d, J=5.9 Hz, 2H), 3.80-3.71 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 2.83-2.71 (m, 3H), 2.33-2.25 (m, 1H), 1.35 (d, J=6.8 Hz, 6H).
N-(3-(3-Cyano-1-(2,6-dioxopiperidin-3-yl)-1H-indazol-6-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide was prepared from 6-bromo-1H-indazole-3-carbonitrile according to the procedures described in Example A1, Steps A-D. The title compound (16 mg, 2% yield over 4 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C43H35N9O4, 741.3; m/z found, 742.3 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.20 (s, 1H), 9.50 (d, J=1.7 Hz, 1H), 9.44-9.37 (m, 2H), 8.83-8.78 (m, 1H), 8.77 (s, 1H), 8.23 (d, J=8.3 Hz, 1H), 8.13-8.06 (m, 2H), 7.96-7.87 (m, 2H), 7.69 (d, J=7.1 Hz, 1H), 7.45 (d, J=8.5 Hz, 1H), 7.28 (d, J=1.3 Hz, 1H), 7.21 (d, J=1.2 Hz, 1H), 6.20-6.02 (m, 1H), 4.43 (d, J=5.9 Hz, 2H), 3.79-3.71 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 2.84-2.69 (m, 3H), 2.38-2.30 (m, 1H), 1.35 (d, J=6.8 Hz, 6H).
N-(3-(1-(2,6-Dioxopiperidin-3-yl)-5-methyl-1H-indazol-6-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide was prepared from 6-bromo-5-methyl-1H-indazole according to the procedures described in Example A1, Steps A D. The title compound (10 mg, 3% yield over 4 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C43H38N8O4, 730.3; m/z found, 731.4 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.07 (s, 1H), 9.50 (d, J=2.0 Hz, 1H), 9.42-9.36 (m, 2H), 8.82-8.77 (m, 1H), 8.76 (s, 1H), 8.23 (d, J=8.2 Hz, 1H), 8.10 (d, J=8.2 Hz, 1H), 8.05 (s, 1H), 7.91 (t, J=7.7 Hz, 1H), 7.78 (s, 1H), 7.68 (d, J=7.1 Hz, 1H), 7.64 (s, 1H), 7.28 (s, 1H), 7.21 (s, 1H), 5.91-5.81 (m, 1H), 4.45 (d, J=5.9 Hz, 2H), 3.78-3.71 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 2.82-2.66 (m, 3H), 2.46 (s, 3H), 2.27-2.20 (m, 1H), 1.34 (d, J=6.8 Hz, 6H).
To a stirred mixture of 4-bromo-2,6-difluorobenzaldehyde (10 g, 45.2 mmol, 1 eq.) and K2CO3 (13.8 g, 99.5 mmol, 2.2 eq.) in DMF (60 mL) was added Me2NH—HCl (4 g, 49.8 mmol, 1.1 eq.) at room temperature. The reaction mixture was stirred at 50° C. for 16 hours under N2 atmosphere. The mixture was diluted with water and extracted with EtOAc (100 mL×3). The combined organic layers were washed with brine (50 mL), dried over anhydrous Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-40% EtOAc in PE) to give 4-bromo-2-(dimethylamino)-6-fluorobenzaldehyde (9.5 g, 85% yield) as a yellow oil.
LC-MS (ESI): mass calcd. for C9H9BrFNO, 245.0/247.0; m/z found, 246/248 [M+H]+.
A sample of 4-bromo-2-(dimethylamino)-6-fluorobenzaldehyde (500 mg, 2.03 mmol, 1 eq.) in a mixture of hydrazine hydrate (5 mL) and DME (5 mL) was placed under N2 atmosphere and stirred at 180° C. for 7 hours. The mixture was diluted with 1M aq. HCl (60 mL) and extracted with EtOAc (100 mL×3). The combined organic layers were washed with brine (50 mL), dried over anhydrous Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-40% EtOAc in PE) to give 6-bromo-N,N-dimethyl-1H-indazol-4-amine (105 mg, 22% yield) as a white solid.
LC-MS (ESI): mass calcd. for C9H10BrN3, 239.0/241.0; m/z found, 240/242 [M+H]+.
Steps C—F: N-(3-(4-(Dimethylamino)-]-(2,6-dioxopiperidin-3-yl)-]H-indazol-6-yl)prop-2-yn-]-yl)-5-(8-(7-isopropyl-],3-dimethyl-2-oxo-2,3-dihydro-]H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide
N-(3-(4-(Dimethylamino)-1-(2,6-dioxopiperidin-3-yl)-1H-indazol-6-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide was prepared from 6-bromo-N,N-dimethyl-1H-indazol-4-amine according to the procedures described in Example A1, Steps A-D. The title compound (11 mg, 10% yield over 4 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C44H41N9O4, 759.3; m/z found, 760.3 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.06 (s, 1H), 9.50 (d, J=2.1 Hz, 1H), 9.40 (s, 1H), 9.34 (t, J=6.0 Hz, 1H), 8.82-8.75 (m, 2H), 8.26-8.20 (m, 2H), 8.10 (d, J=8.3 Hz, 1H), 7.92 (t, J=7.7 Hz, 1H), 7.68 (dd, J=7.1, 1.1 Hz, 1H), 7.28 (d, J=1.6 Hz, 1H), 7.21 (d, J=1.7 Hz, 1H), 7.07 (s, 1H), 6.18 (s, 1H), 5.77 (dd, J=11.6, 5.0 Hz, 1H), 4.38 (d, J=6.0 Hz, 2H), 3.79-3.71 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 3.12 (s, 6H), 2.85-2.76 (m, 1H), 2.73-2.65 (m, 2H), 2.23-2.16 (m, 1H), 1.35 (d, J=6.7 Hz, 6H).
To a solution of 7-bromoisoquinoline (2.3 g, 11.1 mmol, 1 eq.) in DCM (55 mL) was added 3-chloroperoxybenzoic acid (2.9 g, 16.6 mmol, 1.5 eq.) at 0° C. The mixture was stirred at 25° C. for 16 hours under N2 atmosphere. The reaction mixture was quenched with sat. aq. Na2S2O3 (100 mL), diluted with 100 mL of aq. NaHCO3, and extracted with DCM (100 mL×3). The combined organic layers were washed with aq. NaHCO3 and brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give 7-bromoisoquinoline 2-oxide (1.9 g, 77% yield) as a white solid.
LC-MS (ESI): mass calcd. for C9H6BrNO, 223.0/225.0; m/z found, 224/226 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 8.91 (s, 1H), 8.24-8.13 (m, 2H), 7.94 (dd, J=17.8, 7.8 Hz, 2H), 7.77-7.68 (m, 1H).
To a solution of 7-bromoisoquinoline 2-oxide (900 mg, 4.02 mmol, 1 eq.) in THE (20 mL) was added PyBop (2.1 g, 4.42 mmol, 1.1 eq.), tert-butyl((1-methoxyvinyl)oxy)dimethylsilane (1.5 g, 8.03 mmol, 2 eq.) and DIPEA (1.6 g, 12.1 mmol, 3 eq.) at 0° C. The mixture was stirred at 25° C. for 10 mins under N2 atmosphere. The resulting solution was diluted with 30 mL of H2O and extracted with EtOAc (30 mL×3). The combined organic layers were dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-25% EtOAc in PE) to give methyl 2-(7-bromoisoquinolin-1-yl)acetate (248 mg, 22% yield) as a yellow oil.
LC-MS (ESI): mass calcd. for C12H10BrNO2, 279.0/281.0; m/z found, m/z 280/282 [M+H]+.
To a solution of methyl 2-(7-bromoisoquinolin-1-yl)acetate (240 mg, 857 μmol, 1 eq.) in DMF (10 mL) was added potassium tert-butoxide (96 mg, 857 μmol, 1 eq.) and acrylamide (244 mg, 3.43 mmol, 4 eq.) at 0° C. The mixture was stirred at 25° C. for 2 hours under N2 atmosphere. The resulting solution was diluted with 30 mL of H2O, extracted with EtOAc (30 mL×3), and washed with brine (30 mL). The combined organic layers were dried over anhydrous sodium sulfate and concentrated in vacuo. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to give 3-(7-bromoisoquinolin-1-yl)piperidine-2,6-dione (78 mg, 29% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C14H11BrN2O2, 318.0/320.0; m/z found, 319/321 [M+H]+.
was prepared from 3-(7-bromoisoquinolin-1-yl)piperidine-2,6-dione according to the procedures described in Example A1, Steps B D. The title compound (11 mg, 21% yield over 3 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C44H37N7O4, 727.3; m/z found, 728.3 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.89 (s, 1H), 9.50 (d, J=1.8 Hz, 1H), 9.46-9.37 (m, 2H), 8.84-8.72 (m, 2H), 8.49-8.38 (m, 2H), 8.24 (d, J=8.3 Hz, 1H), 8.10 (d, J=8.3 Hz, 1H), 8.00 (d, J=8.6 Hz, 1H), 7.95-7.87 (m, 1H), 7.82-7.74 (m, 2H), 7.69 (d, J=7.1 Hz, 1H), 7.28 (s, 1H), 7.21 (d, J=1.2 Hz, 1H), 5.10 (dd, J=9.3, 5.1 Hz, 1H), 4.46 (d, J=5.9 Hz, 2H), 3.82-3.70 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 2.73-2.63 (m, 1H), 2.59-2.52 (m, 1H), 2.48-2.40 (m, 1H), 2.34-2.10 (m, 1H), 1.35 (d, J=6.8 Hz, 6H).
N-(3-(1-(2,6-Dioxopiperidin-3-yl)-1H-indazol-6-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide was prepared from 6-bromo-1H-indazole according to the procedures described in Example A1, Steps A D. The title compound (9.0 mg, 7% yield over 4 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C42H36N8O4, 716.3; m/z found, 717.3 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.08 (s, 1H), 9.50 (d, J=1.4 Hz, 1H), 9.40 (s, 1H), 9.37 (d, J=6.1 Hz, 1H), 8.80 (d, J=8.3 Hz, 1H), 8.77 (s, 1H), 8.23 (d, J=8.2 Hz, 1H), 8.15 (s, 1H), 8.10 (d, J=8.0 Hz, 1H), 7.92 (t, J=7.6 Hz, 1H), 7.82 (s, 1H), 7.78 (d, J=8.4 Hz, 1H), 7.69 (d, J=7.0 Hz, 1H), 7.28 (s, 1H), 7.21-7.17 (m, 2H), 5.88 (dd, J=7.4, 4.2 Hz, 1H), 4.41 (d, J=5.7 Hz, 2H), 3.78-3.72 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 2.79-2.66 (m, 3H), 2.28-2.22 (m, 1H), 1.35 (d, J=6.8 Hz, 6H).
N-(3-(1-(2,6-Dioxopiperidin-3-yl)-1H-pyrazolo[3,4-b]pyridin-6-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide was prepared from 6-bromo-1H-pyrazolo[3,4-b]pyridine according to the procedures described in Example A1, Steps A-D. The title compound (23 mg, 9% yield over 4 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C41H35N9O4, 717.3; m/z found, 718.5 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.08 (s, 1H), 9.50 (s, 1H), 9.45 (t, J=6.0 Hz, 1H), 9.40 (s, 1H), 8.83-8.74 (m, 2H), 8.30 (d, J=8.2 Hz, 1H), 8.27-8.20 (m, 2H), 8.10 (d, J=8.3 Hz, 1H), 7.92 (t, J=7.7 Hz, 1H), 7.69 (d, J=7.1 Hz, 1H), 7.38 (d, J=8.2 Hz, 1H), 7.28 (s, 1H), 7.21 (s, 1H), 5.99 (dd, J=12.4, 5.2 Hz, 1H), 4.44 (d, J=5.9 Hz, 2H), 3.80-3.71 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 3.05-2.94 (m, 1H), 2.82-2.64 (m, 2H), 2.30-2.19 (m, 1H), 1.35 (d, J=6.8 Hz, 6H).
N-(3-(1-(2,6-Dioxopiperidin-3-yl)-1H-pyrrolo[3,2-b]pyridin-6-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide was prepared from 6-bromo-1H-pyrrolo[3,2-b]pyridine according to the procedures described in Example A1, Steps A-D. The title compound (2.2 mg, 14% yield over 4 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C42H36N8O4, 716.3; m/z found, 717.4 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.10 (s, 1H), 9.50 (d, J=1.7 Hz, 1H), 9.41-9.35 (m, 2H), 8.80 (dd, J=8.2, 2.1 Hz, 1H), 8.77 (s, 1H), 8.39 (s, 1H), 8.23 (d, J=8.2 Hz, 1H), 8.12-8.08 (m, 1H), 8.06 (s, 1H), 7.94-7.89 (m, 1H), 7.79 (d, J=3.3 Hz, 1H), 7.68 (d, J=7.1 Hz, 1H), 7.30-7.26 (m, 1H), 7.21 (d, 1H), 6.66 (d, J=3.2 Hz, 1H), 5.73-5.65 (m, 1H), 4.42 (d, J=5.9 Hz, 2H), 3.80-3.72 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 2.84-2.65 (m, 3H), 2.19-2.12 (m, 1H), 1.35 (d, 6H).
To a solution of 5-bromobenzo[d]oxazol-2(3H)-one (300 mg, 1.4 mmol, 1.0 eq.) in anhydrous DMF (10 mL) was added NaH (34 mg, 1.4 mmol, 1.0 eq.) at 0° C. After 30 min, 3-bromopiperidine-2,6-dione (269 mg, 1.4 mmol, 1.0 eq.) was added. The mixture was stirred for 2 hours at room temperature under N2 atmosphere. The reaction mixture was quenched with 50 mL of H2O and extracted with EtOAc (40 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to give 3-(5-bromo-2-oxobenzo[d]oxazol-3(2H)-yl)piperidine-2,6-dione (100 mg, 33% yield) as a brown solid.
LC-MS (ESI): mass calcd. for C12H9BrN2O4, 324.0/326.0; m/z found, 325/327 [M+H]+.
N-(3-(3-(2,6-Dioxopiperidin-3-yl)-2-oxo-2,3-dihydrobenzo[d]oxazol-5-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide was prepared from 3-(5-bromo-2-oxobenzo[d]oxazol-3(2H)-yl)piperidine-2,6-dione according to the procedures described in Example A1, Steps B D. The title compound (11.8 mg, 16% yield over 3 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C42H35N7O6, 733.3; m/z found, 734.6 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.17 (s, 1H), 9.49 (s, 1H), 9.40 (s, 1H), 9.34 (t, J=5.9 Hz, 1H), 8.83-8.75 (m, 2H), 8.22 (d, J=8.2 Hz, 1H), 8.10 (d, J=8.5 Hz, 1H), 7.92 (t, J=7.5 Hz, 1H), 7.69 (d, J=7.1 Hz, 1H), 7.44-7.37 (m, 2H), 7.29-7.23 (m, 2H), 7.21 (s, 1H), 5.38 (dd, J=12.6, 5.5 Hz, 1H), 4.37 (d, J=5.9 Hz, 2H), 3.80-3.72 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 2.88-2.79 (m, 1H), 2.72-2.60 (m, 2H), 2.18-2.06 (m, 1H), 1.34 (d, J=6.7 Hz, 6H).
To a mixture of 6-bromo-1H-benzo[d]imidazole (1 g, 5.1 mmol, 1.0 eq.) and 3-bromopiperidine-2,6-dione (1.5 g, 7.6 mmol, 1.5 eq.) in THF (40 mL) was added t-BuOK (1.7 g, 15.2 mmol, 3.0 eq.) at room temperature. The mixture was stirred at 50° C. under N2 for 16 hours. The resulting solution was diluted with 60 mL of H2O and extracted with EtOAc (40 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0-70% EtOAc in PE) to afford a mixture (400 mg, 23% combined yield) of 3-(6-bromo-1H-benzo[d]imidazol-1-yl)piperidine-2,6-dione and 3-(5-bromo-1H-benzo[d]imidazol-1-yl)piperidine-2,6-dione as a yellow solid.
LC-MS (ESI): mass calcd. for C12H10BrN3O2, 307.0/309.0; m/z found, 308.1/310.1 [M+H]+.
To a mixture (290 mg, 941.1 μmol, 1.0 eq.) of 3-(6-bromo-1H-benzo[d]imidazol-1-yl)piperidine-2,6-dione and 3-(5-bromo-1H-benzo[d]imidazol-1-yl)piperidine-2,6-dione in DMF (20 mL) was added Pd(PPh3)Cl2 (132 mg, 188.2 μmol, 0.2 eq.), tert-butyl prop-2-yn-1-ylcarbamate (438 mg, 2.8 mmol, 3.0 eq.), CuI (36 mg, 188.2 μmol, 0.2 eq.), and TEA (1.3 mL, 9.4 mmol, 10.0 eq.) at room temperature. The mixture was stirred at 100° C. under N2 for 3 hours. The resulting solution was diluted with 50 mL of H2O and extracted with EtOAc (40 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0-80% EtOAc in PE) to give a mixture (130 mg, 36% combined yield) of tert-butyl (3-(1-(2,6-dioxopiperidin-3-yl)-1H-benzo[d]imidazol-6-yl)prop-2-yn-1-yl)carbamate and tert-butyl (3-(1-(2,6-dioxopiperidin-3-yl)-1H-benzo[d]imidazol-5-yl)prop-2-yn-1-yl)carbamate as a yellow solid.
LC-MS (ESI): mass calcd. for C20H22N4O4, 382.2; m/z found, 383.1 [M+H]+.
To a mixture (100 mg, 261.5 μmol, 1.0 eq.) of tert-butyl (3-(1-(2,6-dioxopiperidin-3-yl)-1H-benzo[d]imidazol-6-yl)prop-2-yn-1-yl)carbamate and tert-butyl (3-(1-(2,6-dioxopiperidin-3-yl)-1H-benzo[d]imidazol-5-yl)prop-2-yn-1-yl)carbamate in DCM (4.5 mL) was added HCl (1.5 mL, 4M in 1,4-dioxane) at room temperature. The mixture was stirred at room temperature under N2 for 1 hour. The mixture was concentrated under reduced pressure to give a mixture of (100 mg, crude, HCl salt) of 3-(6-(3-aminoprop-1-yn-1-yl)-1H-benzo[d]imidazol-1-yl)piperidine-2,6-dione and 3-(5-(3-aminoprop-1-yn-1-yl)-1H-benzo[d]imidazol-1-yl)piperidine-2,6-dione as a pink solid.
LC-MS (ESI): mass calcd. for C15H14N4O2, 282.1; m/z found, 283.1 [M+H]+.
A mixture (50 mg, 177 μmol, 2.0 eq.) of 3-(6-(3-aminoprop-1-yn-1-yl)-1H-benzo[d]imidazol-1-yl)piperidine-2,6-dione and 3-(5-(3-aminoprop-1-yn-1-yl)-1H-benzo[d]imidazol-1-yl)piperidine-2,6-dione was dissolved in DMF (3 mL) and treated with 5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinic acid (40 mg, 88.4 μmol, 1.0 eq.; Intermediate 2), HATU (44 mg, 115 μmol, 1.3 eq.), and DIPEA (46 μL, 265 μmol, 3.0 eq.) at 0° C. The mixture was stirred at room temperature for 1 hour under N2 atmosphere. The resulting solution was diluted with 20 mL of H2O and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The resulting solution was purified by Prep-HPLC (Triant C18 5 μm column, 0-60% MeOH in H2O with 0.1% FA) to afford N-(3-(1-(2,6-dioxopiperidin-3-yl)-1H-benzo[d]imidazol-6-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide (6.4 mg, 10% yield) as a white solid.
LC-MS (ESI): mass calcd. for C42H36N8O4, 716.3; m/z found, 717.5 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.25-11.19 (m, 1H), 9.49 (d, J=1.6 Hz, 1H), 9.40 (s, 1H), 9.36 (t, J=5.9 Hz, 1H), 8.80 (dd, J=8.2, 2.2 Hz, 1H), 8.77 (s, 1H), 8.66-8.55 (m, 1H), 8.23 (d, J=8.2 Hz, 1H), 8.10 (d, J=8.3 Hz, 1H), 7.95-7.89 (m, 1H), 7.82 (s, 1H), 7.72-7.67 (m, 2H), 7.39-7.31 (m, 1H), 7.28 (d, J=1.5 Hz, 1H), 7.21 (d, J=1.4 Hz, 1H), 5.82-5.74 (m, 1H), 4.40 (d, J=6.0 Hz, 2H), 3.77-3.73 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 2.87-2.78 (m, 2H), 2.73-2.67 (m, 1H), 2.30-2.22 (m, 1H), 1.35 (d, J=6.8 Hz, 6H).
A solution of 5-bromo-1-methyl-1H-pyrazol-3-amine (100 mg, 568 μmol, 1.0 eq.) and DIPEA (0.2 mL, 1.1 mmol, 2.0 eq.) in 1,4-dioxane (0.25 mL) was treated with 3-bromopiperidine-2,6-dione (218 mg, 1.1 mmol, 2.0 eq.) at room temperature. The mixture was then stirred for 16 hours at 80° C. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (30 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give 3-((5-bromo-1-methyl-1H-pyrazol-3-yl)amino)piperidine-2,6-dione (80 mg, 49% yield) as a blue solid.
LC-MS (ESI): mass calcd. for C9H11BrN4O2, 286.0/288.0; m/z found, 287.1/289.1 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.76 (s, 1H), 5.76-5.71 (m, 2H), 4.24-4.12 (m, 1H), 3.59 (s, 3H), 2.75-2.65 (m, 1H), 2.55 (t, J=3.9 Hz, 1H), 2.21-2.13 (m, 1H), 1.94-1.83 (m, 1H).
To a mixture of tert-butyl (E)-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)allyl)carbamate (85 mg, 300 μmol, 1.0 eq.) and 3-((5-bromo-1-methyl-1H-pyrazol-3-yl)amino)piperidine-2,6-dione (86 mg, 300 μmol, 1.0 eq.) in 1,4-dioxane (5 mL) and water (0.5 mL) was added CsF (137 mg, 900 μmol, 3.0 eq.) and Pd(dppf)Cl2 (33 mg, 45 μmol, 3.0 eq.) at room temperature. The mixture was stirred at 90° C. under N2 for 2 hours. The resulting solution was diluted with 30 mL of water and extracted with EtOAc (30 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-75% EtOAc in PE) to give tert-butyl (E)-(3-(3-((2,6-dioxopiperidin-3-yl)amino)-1-methyl-1H-pyrazol-5-yl)allyl)carbamate (30 mg, 28% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C17H25N5O4, 363.2; m/z found, 364.1 [M+H]+.
To a mixture of tert-butyl (E)-(3-(3-((2,6-dioxopiperidin-3-yl)amino)-1-methyl-1H-pyrazol-5-yl)allyl)carbamate (30 mg, 82.5 μmol, 1.0 eq.) in DCM (3 mL) was added TFA (1 mL) at room temperature. The mixture was stirred at room temperature under N2 for 1 hour. The mixture was concentrated under reduced pressure to give (E)-3-((5-(3-aminoprop-1-en-1-yl)-1-methyl-1H-pyrazol-3-yl)amino)piperidine-2,6-dione (20 mg, 92% yield crude) as a yellow solid.
LC-MS (ESI): mass calcd. for C12H17N5O2, 263.1; m/z found, 264.3 [M+H]+.
To a mixture of 5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinic acid (15 mg, 33.1 μmol, 1.0 eq.; Intermediate 2) and (E)-3-((5-(3-aminoprop-1-en-1-yl)-1-methyl-1H-pyrazol-3-yl)amino)piperidine-2,6-dione (18 mg, 66.3 μmol, 2.0 eq.) in DMF (3 mL) was added DIPEA (17.3 μL, 99.4 μmol, 3.0 eq.) and HATU (15 mg, 39.8 μmol, 1.2 eq.) at 0° C. The mixture was stirred at room temperature under N2 for 1 hour. The resulting solution was diluted with 30 mL of water and extracted with EtOAc (30 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by prep-HPLC (Triant C18 5 m column, 0-60% MeCN in H2O with 0.1% FA) to give (E)-N-(3-(3-((2,6-dioxopiperidin-3-yl)amino)-1-methyl-1H-pyrazol-5-yl)allyl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide (5.6 mg, 23% yield) as a white solid.
LC-MS (ESI): mass calcd. for C39H39N9O4, 697.3; m/z found, 698.2 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.73 (s, 1H), 9.48 (s, 1H), 9.39 (s, 1H), 9.12 (t, J=5.9 Hz, 1H), 8.81-8.72 (m, 2H), 8.20 (d, J=8.1 Hz, 1H), 8.10 (d, J=8.2 Hz, 1H), 7.91 (t, J=7.7 Hz, 1H), 7.68 (d, J=7.1 Hz, 1H), 7.28 (s, 1H), 7.21 (s, 1H), 6.50 (d, J=15.8 Hz, 1H), 6.23 -6.10 (m, 1H), 5.73 (s, 1H), 5.43 (d, J=6.6 Hz, 1H), 4.22-4.07 (m, 3H), 3.79-3.72 (m, 1H), 3.66 (s, 3H), 3.58 (s, 3H), 3.39 (s, 3H), 2.71-2.64 (m, 1H), 2.57-2.53 (m, 1H), 2.23-2.16 (m, 1H), 1.92-1.82 (m, 1H), 1.35 (d, J=6.8 Hz, 6H).
N-(3-(1-(2,6-Dioxopiperidin-3-yl)-1H-benzo[d][1,2,3]triazol-5-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide was prepared from 3-(5-bromo-1H-benzo[d][1,2,3]triazol-1-yl)piperidine-2,6-dione (Example A3, Step A) according to the procedures described in Example A1, Steps B-D. The title compound (2.3 mg, 8% yield over 3 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C41H35N9O4, 717.3; m/z found, 718.5 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.30 (s, 1H), 9.50 (d, J=1.6 Hz, 1H), 9.41-9.37 (m, 2H), 8.84-8.79 (m, 1H), 8.77 (s, 1H), 8.28-8.14 (m, 2H), 8.10 (d, J=8.3 Hz, 1H), 7.92 (t, J=7.7 Hz, 1H), 7.84 (d, J=8.7 Hz, 1H), 7.69 (d, J=7.0 Hz, 1H), 7.62 (d, J=8.6 Hz, 1H), 7.28 (s, 1H), 7.21 (s, 1H), 6.30-6.12 (m, 1H), 4.43 (d, J=5.8 Hz, 2H), 3.78-3.73 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 2.99-2.87 (m, 2H), 2.81-2.72 (m, 1H), 2.46-2.40 (m, 1H), 1.35 (d, J=6.8 Hz, 6H).
N-(3-(3-(2,6-Dioxopiperidin-3-yl)-1-methyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide was prepared from 5-bromo-1-methyl-1,3-dihydro-2H-benzo[d]imidazol-2-one according to the procedures described in Example A14, Steps A D. The title compound (2.3 mg, 3% yield over 4 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C43H38N8O5, 746.3; m/z found, 747.5 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.07 (s, 1H), 9.50-9.47 (m, 1H), 9.40 (s, 1H), 9.31 (t, J=5.9 Hz, 1H), 8.82-8.75 (m, 2H), 8.22 (d, J=8.4 Hz, 1H), 8.12-8.08 (m, 1H), 7.94-7.89 (m, 1H), 7.70-7.66 (m, 1H), 7.29-7.24 (m, 2H), 7.22-7.17 (m, 3H), 5.42-5.35 (m, 1H), 4.37 (d, 2H), 3.79-3.72 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 3.34 (s, 3H), 2.88-2.77 (m, 1H), 2.75-2.66 (m, 1H), 2.64-2.57 (m, 1H), 2.03-1.97 (m, 1H), 1.34 (d, J=6.8 Hz, 6H).
N-(3-(3-Cyano-1-(2,6-dioxopiperidin-3-yl)-1H-indol-6-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide was prepared from 6-bromo-1H-indole-3-carbonitrile according to the procedures described in Example A14, Steps A-D. The title compound (11.5 mg, 8% yield over 4 steps) was obtained as a yellow solid.
LC-MS (ESI): mass calcd. for C44H36N8O4, 740.3; m/z found, 741.1 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.19 (s, 1H), 9.49 (s, 1H), 9.40 (s, 1H), 9.36 (t, J=5.9 Hz, 1H), 8.83-8.75 (m, 2H), 8.44 (s, 1H), 8.22 (d, J=8.2 Hz, 1H), 8.10 (d, J=8.4 Hz, 1H), 7.92 (t, J=7.6 Hz, 1H), 7.87 (s, 1H), 7.70-7.64 (m, 2H), 7.33 (d, J=8.3 Hz, 1H), 7.28 (s, 1H), 7.21 (s, 1H), 5.84 (dd, J=12.8, 4.8 Hz, 1H), 4.40 (d, J=5.8 Hz, 2H), 3.79-3.72 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 2.90-2.81 (m, 1H), 2.75-2.67 (m, 2H), 2.27-2.19 (m, 1H), 1.34 (d, J=6.7 Hz, 6H).
N-(3-(1-(2,6-Dioxopiperidin-3-yl)-1H-pyrazolo[4,3-b]pyridin-6-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide was prepared from 6-bromo-1H-pyrazolo[4,3-b]pyridine according to the procedures described in Example A1, Steps A-D. The title compound (10 mg, 3% yield over 4 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C41H35N9O4, 717.3; m/z found, 718 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.14 (s, 1H), 9.50 (d, J=1.7 Hz, 1H), 9.43 (t, J=5.9 Hz, 1H), 9.40 (s, 1H), 8.82-8.78 (m, 1H), 8.76 (s, 1H), 8.57 (d, J=1.6 Hz, 1H), 8.40 (s, 1H), 8.33 (s, 1H), 8.23 (d, J=8.3 Hz, 1H), 8.10 (d, J=8.3 Hz, 1H), 7.94-7.89 (m, 1H), 7.68 (d, J=7.1 Hz, 1H), 7.28 (d, J=1.3 Hz, 1H), 7.21 (d, J=1.2 Hz, 1H), 5.97-5.84 (m, 1H), 4.45 (d, J=5.8 Hz, 2H), 3.78-3.73 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 2.84-2.73 (m, 3H), 2.34-2.26 (m, 1H), 1.34 (d, J=6.8 Hz, 6H).
N-(3-(4-Cyano-1-(2,6-dioxopiperidin-3-yl)-1H-indazol-6-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide was prepared from 6-bromo-1H-indazole-4-carbonitrile according to the procedures described in Example A1, Steps A-D. The title compound (8.4 mg, 11% yield over 4 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C43H35N9O4, 741.3; m/z found, 742.3 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.15 (s, 1H), 9.50 (s, 1H), 9.44-9.37 (m, 2H), 8.83-8.78 (m, 1H), 8.78-8.75 (m, 1H), 8.40 (s, 1H), 8.27-8.20 (m, 2H), 8.13-8.07 (m, 1H), 7.92 (t, 1H), 7.83 (s, 1H), 7.68 (d, J=7.2 Hz, 1H), 7.28 (s, 1H), 7.21 (s, 1H), 6.06-5.97 (m, 1H), 4.43 (d, J=5.9 Hz, 2H), 3.79-3.71 (m, 1H), 3.66 (s, 3H), 3.38 (s, 3H), 2.83-2.69 (m, 3H), 2.35-2.26 (m, 1H), 1.34 (d, J=6.8 Hz, 6H).
N-(3-(1-(2,6-Dioxopiperidin-3-yl)-1H-pyrrolo[3,2-c]pyridin-6-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide was prepared from 6-bromo-1H-pyrrolo[3,2-c]pyridine according to the procedures described in Example A1, Steps A D. The title compound (9.1 mg, 12% yield over 4 steps) was obtained as a yellow solid.
LC-MS (ESI): mass calcd. for C42H36N8O4, 716.3; m/z found, 717.6 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.21 (s, 1H), 9.52-9.46 (m, 2H), 9.40 (s, 1H), 9.07 (s, 1H), 8.82 (d, J=8.4 Hz, 1H), 8.78 (s, 1H), 8.24 (d, J=8.5 Hz, 1H), 8.17-8.08 (m, 2H), 7.96-7.88 (m, 2H), 7.70 (d, J=7.3 Hz, 1H), 7.29 (s, 1H), 7.21 (s, 1H), 6.98 (s, 1H), 5.90-5.82 (m, 1H), 4.50-4.44 (m, 2H), 3.79-3.74 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 2.84-2.77 (m, 2H), 2.75-2.71 (m, 1H), 2.24-2.19 (m, 1H), 1.35 (d, J=6.0 Hz, 6H).
A solution of 5-bromobenzofuran-3(2H)-one (4 g, 18.8 mmol, 1.0 eq.) and ethyl (triphenylphosphoranylidene)acetate (13 g, 37.6 mmol, 2.0 eq.) in toluene (50 mL) was stirred at 110° C. for 48 hours. The reaction mixture was concentrated in vacuo and purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give ethyl 2-(5-bromobenzofuran-3-yl)acetate (4 g, 75% yield) as a white solid.
LC-MS (ESI): mass calcd. for C12H11BrO3, 282.0/284.0; m/z found, No signal.
1H NMR (400 MHz, DMSO-d6) δ 7.89 (s, 1H), 7.76 (d, J=2.0 Hz, 1H), 7.50 (d, J=8.8 Hz, 1H), 7.40 (dd, J=8.8, 2.0 Hz, 1H), 4.05 (q, J=7.2 Hz, 2H), 3.73 (s, 2H), 1.14 (t, J=7.2 Hz, 3H).
To a mixture of ethyl 2-(5-bromobenzofuran-3-yl)acetate (3.5 g, 12.4 mmol, 1.0 eq.) in DMF (40 mL) was added t-BuOK (1.4 g, 12.4 mmol, 1.0 eq.) and acrylamide (879 mg, 12.4 mmol, 1.0 eq.) at 0° C. The reaction mixture was then stirred at 25° C. for 2 hours. The resulting solution was diluted with 100 mL of H2O and extracted with EtOAc (100 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-70% EtOAc in PE) to give 3-(5-bromobenzofuran-3-yl)piperidine-2,6-dione (1 g, 26% yield) as a white solid.
LC-MS (ESI): mass calcd. for C13H10BrNO3, 307.0/309.0; m/z found, m/z 308.2/310.2 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.90 (s, 1H), 7.97 (s, 1H), 7.86 (d, J=2.0 Hz, 1H), 7.57 (d, J=8.8 Hz, 1H), 7.46 (dd, J=8.8, 2.0 Hz, 1H), 4.15 (dd, J=12.4, 4.8 Hz, 1H), 2.77-2.67 (m, 1H), 2.57 (dd, J=13.6, 3.6 Hz, 1H), 2.39-2.31 (m, 1H), 2.14-2.04 (m, 1H).
N-(3-(3-(2,6-Dioxopiperidin-3-yl)benzofuran-5-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide was prepared from 3-(5-bromobenzofuran-3-yl)piperidine-2,6-dione according to the procedures described in Example A1, Steps B D. The title compound (23 mg, 18% yield over 3 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C43H36N6O5, 716.3; m/z found, 717.4 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.88 (s, 1H), 9.49 (s, 1H), 9.40 (s, 1H), 9.34 (t, J=5.9 Hz, 1H), 8.84-8.78 (m, 1H), 8.77 (s, 1H), 8.22 (d, J=8.2 Hz, 1H), 8.10 (d, J=8.1 Hz, 1H), 7.97-7.89 (m, 2H), 7.73-7.67 (m, 2H), 7.58 (d, J=8.6 Hz, 1H), 7.37 (d, J=8.6 Hz, 1H), 7.28 (s, 1H), 7.21 (s, 1H), 4.38 (d, J=5.9 Hz, 2H), 4.15 (dd, J=12.2, 5.0 Hz, 1H), 3.79-3.72 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 2.74-2.67 (m, 1H), 2.60-2.55 (m, 1H), 2.36-2.30 (m, 1H), 2.12-2.04 (m, 1H), 1.35 (d, J=6.8 Hz, 6H).
N-(3-(3-((2,6-Dioxopiperidin-3-yl)amino)-1-methyl-1H-pyrazol-5-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide was prepared from 3-((5-bromo-1-methyl-1H-pyrazol-3-yl)amino)piperidine-2,6-dione (Example A16, Step A) according to the procedures described in Example A1, Steps B-D. The title compound (22.5 mg, 26% yield over 3 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C39H37N9O4, 695.3; m/z found, 696.3 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.78-10.69 (m, 1H), 9.49 (s, 1H), 9.42-9.38 (m, 2H), 8.82-8.76 (m, 2H), 8.22 (d, J=8.2 Hz, 1H), 8.10 (d, J=8.4 Hz, 1H), 7.92 (t, 1H), 7.68 (d, J=7.1 Hz, 1H), 7.28 (s, 1H), 7.21 (s, 1H), 5.76 (s, 1H), 5.65 (d, J=6.9 Hz, 1H), 4.40 (d, J=5.9 Hz, 2H), 4.21-4.14 (m, 1H), 3.79-3.72 (m, 1H), 3.66 (s, 3H), 3.64 (s, 3H), 3.39 (s, 3H), 2.69-2.64 (m, 1H), 2.56-2.53 (m, 1H), 2.25-2.13 (m, 1H), 1.94-1.78 (m, 1H), 1.35 (d, J=6.8 Hz, 6H).
To a solution of 5-bromopyridin-2-amine (5 g, 28.9 mmol, 1.0 eq.) in MeCN (50 mL) was added ethyl (E)-4-oxobut-2-enoate (3.7 g, 28.9 mmol, 1.0 eq.). The mixture was stirred at 80° C. for 16 hours under N2. The mixture was then concentrated under reduced pressure and purified by flash chromatography (100-200 mesh silica gel, 0-50% EtOAc in PE) to afford ethyl 2-(6-bromoimidazo[1,2-a]pyridin-3-yl)acetate (2.7 g, 33% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C11H11BrN2O2, 282.0/284.0; m/z found, 283.0/285.0 [M+H]+.
To a solution of ethyl 2-(6-bromoimidazo[1,2-a]pyridin-3-yl)acetate (300 mg, 1.1 mmol, 1.0 eq.) in THF (10 mL) was added LDA (1.1 mL, 2M in THF, 2.2 mmol, 2.0 eq.) at 25° C.
The mixture was stirred at this temperature for 30 mins under N2. At this point, acrylamide (151 mg, 2.2 mmol, 2.0 eq.) was added to the solution. The reaction mixture was stirred at 50° C. for 2 hours under N2. The resulting solution was diluted with 20 mL of water and extracted with EtOAc (10 mL×3). The combined organic layers were washed with brine (20 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to give 3-(6-bromoimidazo[1,2-a]pyridin-3-yl)piperidine-2,6-dione (40 mg, 12% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C12H10BrN3O2, 307.0/309.0; m/z found, 308.0/310.0 [M+H]+.
N-(3-(3-(2,6-Dioxopiperidin-3-yl)imidazo[1,2-a]pyridin-6-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide was prepared from 3-(6-bromoimidazo[1,2-a]pyridin-3-yl)piperidine-2,6-dione according to the procedures described in Example A1, Steps B-D. The title compound (25.4 mg, 13% yield over 3 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C42H36N8O4, 716.3; m/z found, 717.2 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.01 (s, 1H), 9.50 (d, J=1.6 Hz, 1H), 9.44-9.37 (m, 2H), 8.89-8.75 (m, 3H), 8.22 (d, J=8.0 Hz, 1H), 8.10 (d, J=8.2 Hz, 1H), 7.95-7.88 (m, 1H), 7.81 (s, 1H), 7.75 (d, J=9.7 Hz, 1H), 7.69 (d, J=6.4 Hz, 1H), 7.61-7.50 (m, 1H), 7.28 (s, 1H), 7.21 (s, 1H), 4.64 (d, J=8.6 Hz, 1H), 4.42 (d, J=5.9 Hz, 2H), 3.79-3.72 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 2.71-2.66 (m, 2H), 2.56-2.52 (m, 1H), 2.21-2.15 (m, 1H), 1.35 (d, J=6.8 Hz, 6H).
N-(3-(1-(2,6-Dioxopiperidin-3-yl)-4-methoxy-1H-indazol-6-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide was prepared from 6-bromo-4-methoxy-1H-indazole according to the procedures described in Example A1, Steps A-D. The title compound (39.4 mg, 28% yield over 4 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C43H38N8O5, 746.3; m/z found, 747.5 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.07 (s, 1H), 9.50 (d, J=1.6 Hz, 1H), 9.42-9.35 (m, 2H), 8.81 (dd, J=8.2, 2.1 Hz, 1H), 8.77 (s, 1H), 8.24 (d, J=8.3 Hz, 1H), 8.15-8.07 (m, 2H), 7.92 (t, 1H), 7.69 (d, J=7.2 Hz, 1H), 7.40 (s, 1H), 7.29 (s, 1H), 7.21 (s, 1H), 6.61 (s, 1H), 5.87-5.80 (m, 1H), 4.41 (d, J=5.8 Hz, 2H), 3.95 (s, 3H), 3.80-3.72 (m, 1H), 3.67 (s, 3H), 3.39 (s, 3H), 2.82-2.76 (m, 1H), 2.74-2.67 (m, 2H), 2.28-2.21 (m, 1H), 1.35 (d, J=6.8 Hz, 6H).
N-(3-(1-(2,6-Dioxopiperidin-3-yl)-5-methoxy-1H-indazol-6-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide was prepared from 6-bromo-5-methoxy-1H-indazole according to the procedures described in Example A1, Steps A-D. The title compound (10.5 mg, 14% yield over 4 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C43H38N8O5, 746.3; m/z found, 747.5 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.05 (s, 1H), 9.50 (d, J=1.7 Hz, 1H), 9.40 (s, 1H), 9.35 (t, J=6.0 Hz, 1H), 8.80 (dd, J=8.2, 2.2 Hz, 1H), 8.77 (s, 1H), 8.23 (d, J=8.2 Hz, 1H), 8.13-8.08 (m, 1H), 8.02 (s, 1H), 7.95-7.89 (m, 1H), 7.77 (s, 1H), 7.69 (d, J=7.1 Hz, 1H), 7.30-7.25 (m, 2H), 7.21 (d, J=1.4 Hz, 1H), 5.89-5.79 (m, 1H), 4.42 (d, J=5.9 Hz, 2H), 3.84 (s, 3H), 3.78-3.72 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 2.80-2.66 (m, 3H), 2.27-2.18 (m, 1H), 1.35 (d, J=6.8 Hz, 6H).
To a solution of 6-bromo-1H-indazole-3-carbaldehyde (2 g, 8.9 mmol, 1 eq.) in THF (8 mL) was added acetic acid (0.8 mL, 13.3 mmol, 1.5 eq.), dimethylamine (8.9 mL, 17.8 mmol, 2 eq., 2.0 M in THF), and NaBH(OAc)3 (1.9 g, 8.9 mmol, 1 eq.). The reaction mixture was stirred at 25° C. for 12 hours under N2 atmosphere. The reaction mixture was then concentrated and purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-6% DCM in MeOH) to give 1-(6-bromo-1H-indazol-3-yl)-N,N-dimethylmethanamine (1.5 g, 66% yield) as a brown solid.
LC-MS (ESI): mass calcd. for C10H12BrN3, 253.0/255.0; m/z found, 254.0/256.0 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 12.93 (s, 1H), 7.78 (d, J=8.5 Hz, 1H), 7.70 (d, J=1.1 Hz, 1H), 7.21 (dd, J=8.6, 1.6 Hz, 1H), 3.73 (s, 2H), 2.17 (s, 6H).
N-(3-(3-((Dimethylamino)methyl)-1-(2,6-dioxopiperidin-3-yl)-1H-indazol-6-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide was prepared from 1-(6-bromo-1H-indazol-3-yl)-N,N-dimethylmethanamine according to the procedures described in Example A1, Steps A-D. The title compound (23.6 mg, 13% yield over 4 steps) was obtained as a yellow solid.
LC-MS (ESI): mass calcd. for C45H43N9O4, 773.3; m/z found, 774.7 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.15 (s, 1H), 9.93 (s, 1H), 9.50 (d, J=1.7 Hz, 1H), 9.42-9.38 (m, 2H), 8.81 (dd, J=8.2, 2.2 Hz, 1H), 8.77 (s, 1H), 8.23 (d, J=8.3 Hz, 1H), 8.10 (d, J=8.3 Hz, 1H), 7.99 (d, J=8.5 Hz, 1H), 7.95-7.90 (m, 2H), 7.70-7.68 (m, 1H), 7.35-7.30 (m, 1H), 7.28 (d, J=1.5 Hz, 1H), 7.21 (d, J=1.5 Hz, 1H), 6.05-5.92 (m, 1H), 4.72-4.51 (m, 2H), 4.42 (d, J=5.9 Hz, 2H), 3.79-3.72 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 2.84-2.69 (m, 9H), 2.35-2.28 (m, 1H), 1.35 (d, J=6.8 Hz, 6H).
To a solution of 1-methyl-1H-pyrazol-3-ol (5.0 g, 51.0 mmol, 1.0 eq.) and TEA (10.3 g, 102.0 mmol, 2.0 eq.) in DCM (60 mL) was added TBSCI (8.4 g, 56.1 mmol, 1.1 eq.) at 0° C. The mixture was stirred at 25° C. for 4 hours under N2 atmosphere. The resulting solution was diluted with 100 mL of water and extracted with EtOAc (100 mL×3). The combined organic layers were dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to give 3-((tert-butyldimethylsilyl)oxy)-1-methyl-1H-pyrazole (10 g, 92% yield) as a yellow oil.
LC-MS (ESI): mass calcd. for C10H2MN20Si, 212.1; m/z found, m/z 213 [M+H]+.
To a solution of 3-((tert-butyldimethylsilyl)oxy)-1-methyl-1H-pyrazole (5 g, 23.5 mmol, 1.0 eq.) in THF (60 mL) was added LDA (14.1 ml, 1.2 eq, 2 M in THF) at −78° C. The mixture was stirred at −78° C. for 1 h under N2 atmosphere. Then, 12 (7.2 g, 28.3 mmol, 1.2 eq.) was added to this solution. The mixture was stirred at −78° C. for another 2 hours under N2 atmosphere. The resulting solution was diluted with 50 mL of sat. NH4Cl and extracted with EtOAc (100 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to give 3-((tert-butyldimethylsilyl)oxy)-5-iodo-1-methyl-1H-pyrazole (4.5 g, 56% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C10H19IN2OS, 338.0; m/z found, m/z 339 [M+H]+.
To a solution of 3-((tert-butyldimethylsilyl)oxy)-5-iodo-1-methyl-1H-pyrazole (4.5 g, 13.3 mmol, 1.0 eq.) in THF (50 mL) was added TBAF (4.2 g, 16.0 mmol, 1.2 eq.) at 25° C. The mixture was stirred at 25° C. for 2 hours under N2 atmosphere. The resulting solution was diluted with 50 mL of H2O and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give 5-iodo-1-methyl-1H-pyrazol-3-ol (2.5 g, 84% yield) as a white solid.
LC-MS (ESI): mass calcd. for C4H51N2O, 223.9; m/z found, m/z 225 [M+H]+.
To a mixture of 5-iodo-1-methyl-1H-pyrazol-3-ol (300 mg, 1.3 mmol, 1.0 eq.) and Cs2CO3 (436 mg, 1.3 mmol, 1.0 eq.) in DMF (5 mL) was added 3-bromopiperidine-2,6-dione (257 mg, 1.3 mmol, 1.0 eq.) at 25° C. The mixture was then stirred at 50° C. for 6 hours under N2 atmosphere. The resulting solution was diluted with 50 mL of H2O and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to afford 3-((5-iodo-1-methyl-1H-pyrazol-3-yl)oxy)piperidine-2,6-dione (160 mg, 36% yield) as a white solid.
LC-MS (ESI): mass calcd. for C9H10IN3O3, 335.0; m/z found, m/z 336 [M+H]+.
N-(3-(3-((2,6-Dioxopiperidin-3-yl)oxy)-1-methyl-1H-pyrazol-5-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide was prepared from 3-((5-iodo-1-methyl-1H-pyrazol-3-yl)oxy)piperidine-2,6-dione according to the procedures described in Example A1, Steps B D. The title compound(20 mg, 25% yield over 3 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C39H36N8O5, 696.3; m/z found, 697.3 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.89 (s, 1H), 9.49 (d, J=1.8 Hz, 1H), 9.46-9.40 (m, 1H), 9.40 (s, 1H), 8.84-8.72 (m, 2H), 8.22 (d, J=8.2 Hz, 1H), 8.14-8.06 (m, 1H), 7.96-7.88 (m, 1H), 7.75-7.63 (m, 1H), 7.34-7.25 (m, 1H), 7.23-7.14 (m, 1H), 6.01 (s, 1H), 5.29-5.19 (m, 1H), 4.42 (d, J=5.8 Hz, 2H), 3.80-3.72 (m, 1H), 3.71 (s, 3H), 3.66 (s, 3H), 3.39 (s, 3H), 2.77-2.67 (m, 1H), 2.59-2.53 (m, 1H), 2.26-2.17 (m, 1H), 2.15-2.04 (m, 1H), 1.35 (d, J=6.8 Hz, 6H).
To a solution of 5-bromo-3-methoxypicolinic acid (1 g, 4.3 mmol, 1 eq.) in MeOH (10 mL) was added conc. H2SO4 (0.2 mL). The mixture was stirred at 70° C. for 2 hours. The resulting solution was diluted with sat. aq. NaHCO3 (40 mL) and extracted with EtOAc (30 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-20% EtOAc in PE) to afford methyl 5-bromo-3-methoxypicolinate (970 mg, 87% yield) as a yellow oil.
LC-MS (ESI): mass calcd. for C8H8BrNO3, 245.0/247.0; m/z found, 246.1/248.1 [M+H]+.
To a solution of methyl 5-bromo-3-methoxypicolinate (970 mg, 3.9 mmol, 1 eq.) in 1,4-dioxane (10 mL) was added bis(pinacolato)diborane (1.1 g, 4.3 mmol, 1.1 eq.), AcOK (1.2 g, 11.8 mmol, 3 eq.), and Pd(dppf)Cl2 (322 mg, 394 μmol, 0.1 eq.) under N2. The mixture was stirred at 100° C. for 2 hours. The mixture was filtered and concentrated under reduced pressure. The residue was purified by Prep-HPLC (Ci8, 5-95% MeOH in H2O with 0.1% HCOOH) to afford (5-methoxy-6-(methoxycarbonyl)pyridin-3-yl)boronic acid (770 mg, 88% yield) as a yellow oil.
LC-MS (ESI): mass calcd. for C8H10BNO5, 211.1; m/z found, 212.0 [M+H]f.
To a solution of 8-bromoisoquinolin-3-yl trifluoromethanesulfonate (928 mg, 2.6 mmol, 1 eq.; Intermediate 1, Step C) in DMF (22 mL) and water (2.2 mL) was added (5-methoxy-6-(methoxycarbonyl)pyridin-3-yl)boronic acid (550 mg, 2.6 mmol, 1 eq.), Pd(dppf)Cl2 (191 mg, 261 μmol, 0.1 eq.), and K3PO4 (1.7 g, 7.8 mmol, 3 eq.) under N2. The solution was stirred at 70° C. for 2 hours. The mixture was diluted with water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give methyl 5-(8-bromoisoquinolin-3-yl)-3-methoxypicolinate (574 mg, 56% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C17H13BrN2O3, 372.0/374.0; m/z found, 373.2/375.2 [M+H]+.
To a solution of methyl 5-(8-bromoisoquinolin-3-yl)-3-methoxypicolinate (420 mg, 1.1 mmol, 1 eq.) in 1,4-dioxane (10 mL) was added bis(pinacolato)diborane (857 mg, 3.4 mmol, 3 eq.), AcOK (331 mg, 3.3 mmol, 3 eq.), and Pd(dppf)Cl2 (82 mg, 113 μmol, 0.1 eq.) under N2. The mixture was stirred at 100° C. for 2 hours. The solution was filtered, and the filtrate was concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0-50% EtOAc in PE) to afford methyl 3-methoxy-5-(8-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoquinolin-3-yl)picolinate (242 mg, 49% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C23H25BN2O5, 420.2; m/z found, 421.3 [M+H]+.
To a solution of 6-bromo-4-isopropyl-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (81 mg, 286 μmol, 1 eq.; Intermediate 2, Step B) in 1,4-dioxane (10 mL) and H2O(0.5 mL) was added methyl 3-methoxy-5-(8-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoquinolin-3-yl)picolinate (120 mg, 286 μmol, 1 eq.), K2CO3 (118 mg, 857 μmol, 3 eq.), and X-Phos Pd G2 (22.5 mg, 28.6 μmol, 0.1 eq.) under N2. The mixture was stirred at 100° C. for 1 hour. The mixture was diluted with water and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to afford methyl 5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)-3-methoxypicolinate (100 mg, 67% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C29H28N4O4, 496.2; m/z found, 497.6 [M+H]+.
To a solution of methyl 5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)-3-methoxypicolinate (50 mg, 101 μmol, 1 eq.) in THF (5 mL) and water (3 mL) was added LiGH (9 mg, 201 μmol, 2 eq.). The mixture was stirred at 25° C. for 2 hours. The mixture was concentrated to afford 5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)-3-methoxypicolinic acid (40 mg, 78% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C28H26N4O4, 482.2; m/z found, 483.5 [M+H]+.
To a solution of 3-(5-(3-aminoprop-1-yn-1-yl)-1-methyl-1H-indazol-3-yl)-1-(hydroxymethyl)piperidine-2,6-dione (27 mg, 82.9 μmol, 1 eq.; Example A5, Step F) in DMF (5 mL) was added 5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)-3-methoxypicolinic acid (40 mg, 82.9 μmol, 1 eq.), DIPEA (60 μL, 332 μmol, 4 eq.), and HATU (63 mg, 166 μmol, 2 eq.). The mixture was stirred at 0° C. for 30 mins. The resulting solution was diluted with 10 mL of H2O and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0-10% MeOH in DCM) to afford N-(3-(3-(1-(hydroxymethyl)-2,6-dioxopiperidin-3-yl)-1-methyl-1H-indazol-5-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)-3-methoxypicolinamide (20.0 mg, 29% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C45H42N8O6, 790.3; m/z found, 791.3 [M+H]+.
A mixture of N-(3-(3-(1-(hydroxymethyl)-2,6-dioxopiperidin-3-yl)-1-methyl-1H-indazol-5-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)-3-methoxypicolinamide (20.0 mg, 25.3 μmol, 1 eq.) in MeCN (5 mL) and NH4OH (0.1 mL) was stirred at 25° C. for 30 mins. The mixture was treated with TFA until a sample was measured to be pH=4. After the mixture was neutralized, it was directly concentrated under reduced pressure. The mixture was purified by Prep-HPLC (Triant C18 5 μm column, 0-70% MeCN in H2O with 0.1% FA) to afford N-(3-(3-(2,6-dioxopiperidin-3-yl)-1-methyl-1H-indazol-5-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)-3-methoxypicolinamide (5.7 mg, 27% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C44H40N8O5, 760.3; m/z found, 761.3 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.89 (s, 1H), 9.39 (s, 1H), 9.02 (d, J=1.6 Hz, 1H), 8.93 (t, J=5.6 Hz, 1H), 8.77 (s, 1H), 8.31 (d, J=1.6 Hz, 1H), 8.09 (d, J=8.4 Hz, 1H), 7.93-7.88 (m, 2H), 7.67 (d, J=7.1 Hz, 1H), 7.63 (d, J=8.8 Hz, 1H), 7.45-7.41 (m, 1H), 7.28 (d, J=1.6 Hz, 1H), 7.21 (d, J=1.6 Hz, 1H), 4.46-4.36 (m, 1H), 4.33 (d, J=5.6 Hz, 2H), 4.01-3.98 (m, 6H), 3.78-3.69 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 2.68-2.56 (m, 2H), 2.43-2.37 (m, 1H), 2.19-2.12 (m, 1H), 1.35 (d, J=6.7 Hz, 6H).
To a solution of 6-bromo-1H-indazole-3-carbaldehyde (2 g, 8.9 mmol, 1 eq.) in DCM (30 mL) was added DAST (3.5 mL, 26.7 mmol, 3 eq.) at 0° C. The mixture was stirred at 25° C. for 2 hours. The mixture was quenched with sat. aq. NaHCO3 solution and extracted with DCM (70 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give 6-bromo-3-(difluoromethyl)-1H-indazole (720 mg, 31% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C8H5BrF2N2, 246.0/248.0; m/z found, 247/249 [M+H]+.
N-(3-(3-(Difluoromethyl)-1-(2,6-dioxopiperidin-3-yl)-1H-indazol-6-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide was prepared from 6-bromo-3-(difluoromethyl)-1H-indazole according to the procedures described in Example A1, Steps A-D. The title compound (12.4 mg, 6% yield over 4 steps) was obtained as a yellow solid.
LC-MS (ESI): mass calcd. for C43H36F2N8O4, 766.3; m/z found, 767 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.28-10.96 (m, 1H), 9.50 (s, 1H), 9.44-9.35 (m, 2H), 8.84-8.75 (m, 2H), 8.23 (d, J=8.2 Hz, 1H), 8.10 (d, J=7.9 Hz, 1H), 7.96-7.89 (m, 2H), 7.85 (d, J=8.6 Hz, 1H), 7.69 (d, J=7.3 Hz, 1H), 7.50-7.21 (m, 4H), 6.00 (s, 1H), 4.42 (d, J=6.0 Hz, 2H), 3.79-3.70 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 2.80-2.73 (m, 2H), 2.02-1.98 (m, 2H), 1.35 (d, J=6.8 Hz, 6H).
To a solution of 5-bromo-2,3-dihydrobenzofuran-7-carboxylic acid (890 mg, 3.7 mmol, 1.0 eq.) in t-BuOH (15 mL) and toluene (15 mL) was added DIPEA (702 μL, 4.03 mmol, 1.1 eq.) and DPPA (948 μL, 4.4 mmol, 1.2 eq.). The mixture was stirred at 110° C. for 18 hours under N2 atmosphere. The mixture was poured into EtOAc (40 mL) and filtered. The filter cake was washed with additional EtOAc (40 mL). The combined filtrates were washed with brine (40 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% DCM in MeOH) to give tert-butyl (5-bromo-2,3-dihydrobenzofuran-7-yl)carbamate (850 mg, 74% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C13H16BrNO3, 313.0/315.0; m/z found, 258.0/260.0 [M−tBu+H]+.
To a solution of tert-butyl (5-bromo-2,3-dihydrobenzofuran-7-yl)carbamate (250 mg, 796 μmol, 1.0 eq.) in DCM (10 mL) was added TFA (2 mL) under N2 atmosphere. The reaction was stirred for 30 minutes at room temperature. The mixture was concentrated under vacuum to give 5-bromo-2,3-dihydrobenzofuran-7-amine (150 mg, crude) as a yellow solid.
LC-MS (ESI): mass calcd. for CsHsBrNO, 213.0/215.0; m/z found, 214/216 [M+H]+.
A sample of 5-bromo-2,3-dihydrobenzofuran-7-amine (280 mg, 1.3 mmol, 1.0 eq.) was suspended in neat DIPEA (456 μL, 2.62 mmol, 2.0 eq.) and treated with 3-bromopiperidine-2,6-dione (502 mg, 2.6 mmol, 2.0 eq.) under N2 atmosphere. The reaction was stirred for 18 hours at 80° C. The resulting solution was diluted with 50 mL of H2O and extracted with EtOAc (40 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give 3-((5-bromo-2,3-dihydrobenzofuran-7-yl)amino)piperidine-2,6-dione (280 mg, 66% yield) as a solid.
LC-MS (ESI): mass calcd. for C13H13BrN2O3, 324.0/326.0; m/z found, 325/327 [M+H]+.
N-(3-(7-((2,6-Dioxopiperidin-3-yl)amino)-2,3-dihydrobenzofuran-5-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide was prepared from 3-((5-bromo-2,3-dihydrobenzofuran-7-yl)amino)piperidine-2,6-dione according to the procedures described in Example A1, Steps B-D. The title compound (1.5 mg, 1% yield over 3 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C43H39N7O5, 733.3; m/z found, 734.2 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.78 (s, 1H), 9.49 (d, J=2.0 Hz, 1H), 9.40 (s, 1H), 9.26 (t, J=5.9 Hz, 1H), 8.82-8.74 (m, 2H), 8.21 (d, J=8.2 Hz, 1H), 8.10 (d, J=8.2 Hz, 1H), 7.94-7.89 (m, 1H), 7.69 (d, J=7.0 Hz, 1H), 7.28 (s, 1H), 7.21 (s, 1H), 6.65 (s, 1H), 6.59 (s, 1H), 5.14 (d, J=7.8 Hz, 1H), 4.55 (t, J=8.8 Hz, 2H), 4.44-4.37 (m, 1H), 4.33 (d, J=6.0 Hz, 2H), 3.79-3.72 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 3.16-3.11 (m, 2H), 2.81-2.74 (m, 1H), 2.57-2.54 (m, 1H), 2.04-1.96 (m, 2H), 1.35 (d, J=6.8 Hz, 6H).
To a mixture of 4-bromo-1H-pyrazole (1 g, 6.8 mmol, 1.0 eq.) in THF (10 mL) was added sodium hydride (544 mg, 13.6 mmol, 2.0 eq., w.t. =60%). The mixture was stirred at 60° C. for 1 hour. Then, 3-bromopiperidine-2,6-dione (1.96 g, 10.2 mmol, 1.2 eq.) was added, and the mixture was stirred at 60° C. for an additional 2 hours. The resulting solution was diluted with 60 mL of water and extracted with EtOAc (60 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, and concentrated under reduced pressure. The product was purified by flash chromatography (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford 3-(4-bromo-1H-pyrazol-1-yl)piperidine-2,6-dione (550 mg, 30% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C8H8BrN3O2, 257.0/259.0; m/z found, 257.9/259.9 [M+H]+.
To a solution of tert-butyl (4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl)carbamate (123 mg, 387.5 μmol, 1.2 eq.) in 1,4-dioxane (5 mL) and water (0.5 mL) was added Pd(dppf)Cl2 (56 mg, 77.5 μmol, 0.2 eq.), 3-(4-bromo-1H-pyrazol-1-yl)piperidine-2,6-dione (100 mg, 387.5 μmol, 1.0 eq.), and CsF (117 mg, 775.0 μmol, 2.0 eq.) at room temperature. The reaction mixture was stirred at 90° C. for 4 hours. The resulting solution was diluted with 40 mL of water and extracted with EtOAc (40 mL×3). The combined organic layers were washed with brine (40 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give tert-butyl (4-(1-(2,6-dioxopiperidin-3-yl)-1H-pyrazol-4-yl)benzyl)carbamate (40 mg, 27% yield) as a white solid.
LC-MS (ESI): mass calcd. for C20H24N4O4, 384.2; m/z found, 385.2 [M+H]+.
A sample of tert-butyl (4-(1-(2,6-dioxopiperidin-3-yl)-1H-pyrazol-4-yl)benzyl)carbamate (40 mg, 104 μmol, 1.0 eq.) was treated with HCl (2 mL, 4M in 1,4-dioxane) at 0° C. The reaction mixture was stirred at 0° C. for 1 hour. The reaction mixture was then concentrated to give 3-(4-(4-(aminomethyl)phenyl)-1H-pyrazol-1-yl)piperidine-2,6-dione (40 mg, crude) as a brown solid.
LC-MS (ESI): mass calcd. for C15H16N4O2, 284.1; m/z found, 285.1 [M+H]+.
To a solution of 5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinic acid (25 mg, 55.2 μmol, 1.0 eq.; Intermediate 2) and 3-(4-(4-(aminomethyl)phenyl)-1H-pyrazol-1-yl)piperidine-2,6-dione (40 mg, 110.4 μmol, 2.0 eq.) in DMF (2 mL) was added T3P (53 mg, 166 μmol, 3.0 eq. w.t. =50%) and DIPEA (0.1 mL, 166 μmol, 3.0 eq.) at room temperature. The reaction mixture was stirred at 50° C. for 1 hour.
The mixture was diluted with water and extracted with EtOAc (30 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by Prep-HPLC (Triant C18 5 m column, 0-80% MeCN in H2O with 0.1% FA) to afford N-(4-(1-(2,6-dioxopiperidin-3-yl)-1H-pyrazol-4-yl)benzyl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide (16 mg, 40% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C42H38N8O4, 718.3; m/z found, 719.4 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.07 (s, 1H), 9.47 (d, J=2.0 Hz, 1H), 9.42-9.37 (m, 2H), 8.80-8.74 (m, 2H), 8.22-8.19 (m, 2H), 8.09 (d, J=8.3 Hz, 1H), 7.93-7.88 (m, 2H), 7.67 (d, J=7.1 Hz, 1H), 7.56-7.53 (m, 2H), 7.37-7.33 (m, 2H), 7.28-7.19 (m, 2H), 5.37 (dd, J=12.1, 5.2 Hz, 1H), 4.52 (d, J=6.2 Hz, 2H), 3.76-3.72 (m, 1H), 3.65 (s, 3H), 3.38 (s, 3H), 2.83-2.77 (m, 1H), 2.68-2.59 (m, 2H), 2.28-2.22 (m, 1H), 1.33 (d, J=6.8 Hz, 6H).
To a mixture of 6-bromo-N-methylpyridin-3-amine (525 mg, 2.8 mmol, 1.0 eq.), K2CO3 (1.2 g, 8.4 mmol, 3.0 eq.), and methyl 3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate (778 mg, 2.8 mmol, 1.0 eq.; Example A35, Step A) in 1,4-dioxane (10 mL) and H2O(1 mL) was added Pd(dppf)Cl2 (205 mg, 0.2 mmol, 0.1 eq.) at room temperature. The mixture was stirred at 90° C. for 3 hours under N2 atmosphere. The reaction mixture was diluted with H2O (20 mL) and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL×2), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) to give methyl 5′-methyl-5-(methylamino)-[2,3′-bipyridine]-6′-carboxylate (360 mg, 50% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C14H15N3O2, 257.1; m/z found, 258 [M+H]+.
To a solution of methyl 5′-methyl-5-(methylamino)-[2,3′-bipyridine]-6′-carboxylate (200 mg, 0.7 mmol, 1.0 eq.), 6-bromo-4-isopropyl-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (242 mg, 0.8 mmol, 1.1 eq.; Intermediate 2, Step B), RuPhos (72 mg, 0.2 mmol, 0.2 eq.), and Cs2CO3 (760 mg, 2.1 mmol, 3.0 eq.) in 1,4-dioxane (10 mL) was added RuPhos Pd G1 (113 mg, 0.2 mmol, 0.2 eq.) at room temperature. The mixture was stirred at 100° C. for 16 hours under N2 atmosphere. The reaction mixture was diluted with H2O(20 mL) and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give methyl 5-((7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)(methyl)amino)-5′-methyl-[2,3′-bipyridine]-6′-carboxylate (300 mg, 84% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C26H29N5O3, 459.2; m/z found, 460.5 [M+H]+.
To a solution of methyl 5-((7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)(methyl)amino)-5′-methyl-[2,3′-bipyridine]-6′-carboxylate (300 mg, 0.7 mmol, 1.0 eq.) in THF (3 mL) and H2O(1 mL) was added LiGH (55 mg, 1.4 mmol, 2.0 eq.) at room temperature. The solution was stirred at room temperature for 1 hour. The resulting solution was diluted with H2O(20 mL) and extracted with DCM (20 mL×3). The combined organic layers were washed with brine (20 mL), dried over Na2SO4, and concentrated under reduced pressure to give 5-((7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)(methyl)amino)-5′-methyl-[2,3′-bipyridine]-6′-carboxylic acid (290 mg, 99% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C25H27N5O3, 445.2; m/z found, 446 [M+H]+.
To a mixture of 5-((7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)(methyl)amino)-5′-methyl-[2,3′-bipyridine]-6′-carboxylic acid (40 mg, 0.1 mmol, 1.0 eq.), 3-((3-(3-aminoprop-1-yn-1-yl)phenyl)amino)piperidine-2,6-dione (46 mg, 0.2 mmol, 2.0 eq.; Intermediate 6) and T3P (458 mg, 0.8 mmol, 8.0 eq., w.t. =50%) in DMF (5 mL) was added TEA (138 μL, 1.0 mmol, 10 eq.) at room temperature. The mixture was stirred at room temperature for 30 minutes under N2 atmosphere. The reaction mixture was diluted with H2O(20 mL) and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by Prep-HIPLC (C18, 0-70% MeCN in H2O with 0.1% FA) to give N-(3-(3-((2,6-dioxopiperidin-3-yl)amino)phenyl)prop-2-yn-1-yl)-5-((7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)(methyl)amino)-5′-methyl-[2,3′-bipyridine]-6′-carboxamide (10 mg, 16% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C39H40N8O4, 684.3; m/z found, 685 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.77 (s, 1H), 9.09-8.99 (m, 2H), 8.26 (s, 1H), 8.18 (d, J=2.8 Hz, 1H), 7.93 (d, J=8.8 Hz, 1H), 7.17 (dd, J=8.9, 2.9 Hz, 1H), 7.06 (t, J=7.8 Hz, 1H), 6.99 (d, J=1.9 Hz, 1H), 6.92 (d, J=1.9 Hz, 1H), 6.73-6.67 (m, 2H), 6.63 (d, J=7.5 Hz, 1H), 6.00 (d, J=7.9 Hz, 1H), 4.43-4.33 (m, 1H), 4.29 (d, J=5.9 Hz, 2H), 3.70-3.62 (m, 1H), 3.59 (s, 3H), 3.37 (s, 3H), 3.30 (s, 3H), 2.80-2.71 (m, 1H), 2.64 (s, 3H), 2.59-2.53 (m, 1H), 2.10-2.04 (m, 1H), 1.92-1.81 (m, 1H), 1.27 (d, J=6.8 Hz, 6H).
A mixture of methyl 5-bromo-3-methylpicolinate (10 g, 43.5 mmol, 1.0 eq.), 4,4,4′,4′,5,5,5′,5′-octamethyl-2,2′-bi(1,3,2-dioxaborolane) (13.2 g, 52.2 mmol, 1.2 eq.), Pd(dppf)Cl2 (3.1 g, 4.35 mmol, 0.1 eq.), and KOAc (27.6 g, 130 mmol, 3.0 eq.) in 1,4-dioxane (100 mL) was stirred at 90° C. for 2 hours under N2. The mixture was filtered and the filter cake was washed with EtOAc. The combined filtrates were concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to give crude product. The crude product was triturated with PE to give methyl 3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate (4.0 g, 33% yield) as a white solid.
LC-MS (ESI): mass calcd. for C14H20BNO4, 277.2; m/z found, 196 [M−Pin+20H+H]+.
1H NMR (400 MHz, DMSO-d6) δ 8.63 (s, 1H), 7.99 (s, 1H), 3.87 (s, 3H), 2.59 (s, 3H), 1.33 (m, 12H).
A mixture of methyl 3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate (1.5 g, 5.4 mmol, 1 eq.), Pd(dppf)Cl2 (0.4 g, 541 μmol, 0.1 eq.), 8-bromoisoquinolin-3-yl trifluoromethanesulfonate (1.9 g, 5.41 mmol, 0.1 eq.; Intermediate 1, Step C), and K3PO4 (3.4 g, 16.2 mmol, 3.0 eq.) in DMF (60 mL) was stirred at 70° C. for 16 hours under N2. The mixture was poured into EtOAc (300 mL) and filtered. The filter cake was washed with additional EtOAc. The combined filtrates were washed with brine (100 mL×3), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-40% EtOAc in DCM) to afford methyl 5-(8-bromoisoquinolin-3-yl)-3-methylpicolinate (600 mg, 31% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C17H13BrN2O2, 356.0/358.0; m/z found, 357/359 [M+H]+.
A mixture of methyl 5-(8-bromoisoquinolin-3-yl)-3-methylpicolinate (600 mg, 1.6 mmol, 1.0 eq.), Pd(dppf)Cl2 (0.1 g, 168 μmol, 0.1 eq.), bis(pinacolato)diborane (1.3 g, 5.0 mmol, 3.0 eq.), and KOAc (1.1 g, 5.0 mmol, 3.0 eq.) in 1,4-dioxane (10 mL) was stirred at 100° C. for 3 hours under N2. The mixture was filtered and the filter cake was washed with EtOAc. The combined filtrates were concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-40% EtOAc in PE) to give methyl 3-methyl-5-(8-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoquinolin-3-yl)picolinate (500 mg, 72% yield) as a brown solid.
LC-MS (ESI): mass calcd. for C23H25BN2O4, 404.2; m/z found, 405 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.07 (s, 1H), 9.32 (d, J=1.7 Hz, 1H), 8.66 (s, 1H), 8.59 (s, 1H), 8.19 (d, J=8.1 Hz, 1H), 8.12 (d, J=6.8 Hz, 1H), 7.89-7.81 (m, 1H), 3.92 (s, 3H), 2.59 (s, 3H), 1.45-1.40 (m, 12H).
To a mixture of methyl 3-methyl-5-(8-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoquinolin-3-yl)picolinate (0.8 g, 2.0 mmol, 1.0 eq.), K2CO3 (0.8 g, 5.9 mmol, 3.0 eq.), and 6-bromo-4-isopropyl-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (560 mg, 1.9 mmol, 1.0 eq.; Intermediate 2, Step B) in 1,4-dioxane (10 mL) and H2O(1 mL) was added X-Phos Pd G2 (155 mg, 198 μmol, 0.1 eq.) at room temperature. The mixture was stirred at 100° C. for 3 hours under N2. The resulting solution was diluted with 30 mL of water and extracted with EtOAc (30 mL×3). The combined organic layers were washed with brine (60 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-70% EtOAc in PE) to give methyl 5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)-3-methylpicolinate (300 mg, 32% yield) as a white solid.
LC-MS (ESI): mass calcd. for C29H28N4O3, 480.2; m/z found, 481.3 [M+H]+.
To a mixture of methyl 5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)-3-methylpicolinate (250 mg, 520 μmol, 1.0 eq.) in THE (2 mL) and water (2 mL) was added LiGH (33 mg, 780 μmol, 1.5 eq.) at room temperature. The reaction mixture was concentrated under vacuum to afford 5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)-3-methylpicolinic acid (240 mg, Li salt) as a white solid.
LC-MS (ESI): mass calcd. for C28H26N4O3, 466.2; m/z found, 467.4 [M+H]+.
To a solution of 5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)-3-methylpicolinic acid (47 mg, 100 μmol, 1 eq.), 3-(5-(3-aminoprop-1-yn-1-yl)benzofuran-3-yl)piperidine-2,6-dione (34 mg, 120 μmol, 1.2 eq.; as prepared in Example A23, Step D), and HATU (76 mg, 200 μmol, 2 eq.) in DMF (3 mL) was added DIPEA (69 μL, 400 μmol, 4 eq.) at 0° C. The mixture was stirred at 0° C. for 30 mins. The resulting solution was diluted with 20 mL of water and extracted with EtOAc (3×30 mL). The combined organic layers were washed with brine (30 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash Prep-HPLC (Triant C18 5 m column, 0-60% MeCN in H2O with 0.1% FA) to give N-(3-(3-(2,6-dioxopiperidin-3-yl)benzofuran-5-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)-3-methylpicolinamide (15.6 mg, 21% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C44H38N6O5, 730.3; m/z found, 731 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.89 (s, 1H), 9.39 (s, 1H), 9.33-9.26 (m, 1H), 9.17 (t, J=5.8 Hz, 1H), 8.73 (s, 1H), 8.57 (s, 1H), 8.13-8.05 (m, 1H), 7.97 (s, 1H), 7.94-7.88 (m, 1H), 7.73 (s, 1H), 7.69-7.66 (m, 1H), 7.61-7.56 (m, 1H), 7.41-7.35 (m, 1H), 7.28 (s, 1H), 7.21 (s, 1H), 4.36 (d, J=5.8 Hz, 2H), 4.16 (dd, J=12.2, 4.8 Hz, 1H), 3.79-3.71 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 2.75-2.67 (m, 4H), 2.60-2.54 (m, 1H), 2.38-2.31 (m, 1H), 2.13-2.06 (m, 1H), 1.35 (d, J=6.8 Hz, 6H).
N-(3-(1-(2,6-Dioxopiperidin-3-yl)-3-methyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide was prepared from 3-(5-bromo-3-methyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-1-yl)piperidine-2,6-dione according to the procedures described in Example A1, Steps B D. The title compound (9 mg, 6% yield over 3 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C43H38N8O5, 746.3; m/z found, 747.6 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.11 (s, 1H), 9.50 (d, J=2.1 Hz, 1H), 9.40 (s, 1H), 9.33 (t, J=6.0 Hz, 1H), 8.80 (dd, J=8.2, 2.2 Hz, 1H), 8.77 (s, 1H), 8.23 (d, J=8.2 Hz, 1H), 8.10 (d, J=8.2 Hz, 1H), 7.94-7.89 (m, 1H), 7.69 (d, J=7.5 Hz, 1H), 7.30 (d, J=9.3 Hz, 2H), 7.21 (s, 1H), 7.16-7.10 (m, 2H), 5.38 (dd, J=12.5, 5.2 Hz, 1H), 4.38 (d, J=6.0 Hz, 2H), 3.79-3.71 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 3.33 (s, 3H), 2.92-2.83 (m, 1H), 2.73-2.61 (m, 2H), 2.05-1.99 (m, 1H), 1.35 (d, J=6.8 Hz, 6H).
5-(7-(Difluoromethyl)-1-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-1,2,3,4-tetrahydroquinolin-6-yl)-N-(4-(1-(2,6-dioxopiperidin-3-yl)-1H-pyrazol-3-yl)benzyl)picolinamide was prepared from 3-bromo-1H-pyrazole according to the procedures described in Example A33, Steps A-D. In the final step, 5-(7-(difluoromethyl)-1-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-1,2,3,4-tetrahydroquinolin-6-yl)picolinic acid (Intermediate 3) was used as the coupling partner. The title compound (6.4 mg, 8% yield over 4 steps) was obtained as a yellow solid.
LC-MS (ESI): mass calcd. for C43H42F2N8O4, 772.3; m/z found, 773.3 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.07 (s, 1H), 9.40 (t, J=6.4 Hz, 1H), 8.56 (d, J=1.8 Hz, 1H), 8.11-8.08 (m, 1H), 7.90 (dd, J=8.1, 2.2 Hz, 1H), 7.84 (d, J=2.4 Hz, 1H), 7.75-7.72 (m, 2H), 7.38-7.35 (m, 2H), 7.12 (s, 1H), 7.01 (d, J=1.9 Hz, 1H), 6.95 (d, J=1.9 Hz, 1H), 6.77-6.66 (m, 3H), 5.42 (dd, J=12.1, 5.1 Hz, 1H), 4.53 (d, J=6.2 Hz, 2H), 3.70-3.66 (m, 2H), 3.66-3.63 (m, 1H), 3.59 (s, 3H), 3.32 (s, 3H), 2.94-2.90 (m, 2H), 2.84-2.77 (m, 1H), 2.71-2.61 (m, 2H), 2.29-2.23 (m, 1H), 2.07-2.03 (m, 2H), 1.26 (d, J=6.8 Hz, 6H).
N-(3-(1-(2,6-Dioxopiperidin-3-yl)-1H-benzo[d]imidazol-5-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide (3.1 mg, 5% yield) was obtained during the purification described in Example A15, Step D, as a white solid.
LC-MS (ESI): mass calcd. for C42H36N8O4, 716.3; m/z found, 717.5 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.20 (s, 1H), 9.50 (s, 1H), 9.42-9.38 (m, 1H), 9.34 (t, J=6.0 Hz, 1H), 8.84-8.74 (m, 2H), 8.35 (s, 1H), 8.23 (d, J=8.2 Hz, 1H), 8.10 (d, J=8.4 Hz, 1H), 7.94-7.88 (m, 1H), 7.74 (s, 1H), 7.68 (d, J=7.2 Hz, 1H), 7.56 (d, J=8.6 Hz, 1H), 7.33 (d, J=8.5 Hz, 1H), 7.29 (d, J=1.5 Hz, 1H), 7.21 (s, 1H), 5.71 (dd, J=12.9, 5.0 Hz, 1H), 4.40 (d, J=5.7 Hz, 2H), 3.79-3.72 (m, 1H), 3.66 (s, 3H), 3.39 (s, 3H), 2.94-2.79 (m, 2H), 2.68 (s, 1H), 2.29-2.20 (m, 1H), 1.35 (d, J=6.8 Hz, 6H).
To a solution of 1-bromo-2-chloro-3-fluorobenzene (10 g, 47.7 mmol, 1.0 eq.) in THF (80 mL) was added LDA (31 mL, 62.1 mmol, 1.3 eq., 2.0 M in THF) at −78° C. The mixture was stirred at this temperature for 1 hour under N2 atmosphere. Then, DMF (5.5 mL, 71.6 mmol, 1.5 eq.) was added to this solution at −78° C. The mixture was then stirred at room temperature for 30 minutes under N2 atmosphere. The resulting solution was quenched with 100 mL of NH4Cl and extracted with EtOAc (70 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to give 4-bromo-3-chloro-2-fluorobenzaldehyde (4.7 g, 42% yield) as a yellow oil.
To a solution of 4-bromo-3-chloro-2-fluorobenzaldehyde (4.7 g, 19.1 mmol, 1.0 eq.) in t-BuOH (40 mL) was added hydrazine monohydrate (4 mL, 114 mmol, 6.0 eq.) at room temperature. The mixture was stirred at 120° C. for 18 hours under N2 atmosphere. The reaction mixture was diluted with H2O(100 mL) and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to give 6-bromo-7-chloro-1H-indazole (1.1 g, 25% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C7H4BrClN2, 229.9/231.9; m/z found, 231.3/233.1 [M+H]+.
Steps C—F: N-(3-(7-Chloro-]-(2,6-dioxopiperidin-3-yl)-]H-indazol-6-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-]H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide
N-(3-(7-Chloro-1-(2,6-dioxopiperidin-3-yl)-1H-indazol-6-yl)prop-2-yn-1-yl)-5-(8-(7-isopropyl-1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isoquinolin-3-yl)picolinamide was prepared from 6-bromo-7-chloro-1H-indazole according to the procedures described in Example A1, Steps A-D. The title compound (15 mg, 2% yield over 4 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C42H35ClN8O4, 750.3; m/z found, 751.3 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.09 (s, 1H), 9.51-9.47 (m, 1H), 9.44-9.38 (m, 2H), 8.82-8.74 (m, 2H), 8.28 (s, 1H), 8.23 (d, J=8.2 Hz, 1H), 8.12-8.07 (m, 1H), 7.91 (t, J=7.7 Hz, 1H), 7.78 (d, J=8.3 Hz, 1H), 7.70-7.66 (m, 1H), 7.33-7.27 (m, 2H), 7.21 (s, 1H), 6.35 (s, 1H), 4.47 (d, J=5.8 Hz, 2H), 3.79-3.72 (m, 1H), 3.66 (s, 3H), 3.39-3.38 (m, 3H), 3.04-2.94 (m, 1H), 2.87-2.77 (m, 1H), 2.71-2.65 (m, 1H), 2.45-2.37 (m, 1H), 1.34 (d, J=6.8 Hz, 6H).
To a solution of 4-bromobenzofuran (12.0 g, 60.9 mmol, 1.0 eq.), EthylPotassiumMalonate (12.4 g, 73.1 mmol, 1.2 eq.), Pd2(allyl)C12 (446 mg, 1.22 mmol, 0.02 eq.), BINAP (2.3 g, 3.65 mmol, 0.06 eq.) in 1,3,5-Trimethylbenzene (180 mL) was added DMAP (744 mg, 6.1 mmol, 0.1 eq.). The mixture was stirred at 140° C. for 14 hours under N2 atmosphere. The resulting solution was diluted with 500 mL of H2O and extracted with EtOAc (200 mL×3). The combined organic layers were washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-5% EtOAC in PE) to give ethyl 2-(benzofuran-4-yl)acetate (6.0 g, 48% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C12H12O3, 204.1; m/z found, 205.2 [M+H]+.
To a solution of ethyl 2-(benzofuran-4-yl)acetate (2.8 g, 13.7 mmol, 1.0 eq.) in DMF (40 mL) was added acrylamide (2.9 g, 41.1 mmol, 3.0 eq.) and t-BuOK (1.5 g, 13.7 mmol, 1.0 eq.) at 0° C. with stirring. The mixture was stirred at 25° C. for 2 hours under N2 atmosphere. The resulting solution was diluted with 80 mL of H2O and extracted with EtOAc (40 mL×3). The combined organic layers were washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAC in PE) to give 3-(benzofuran-4-yl)piperidine-2,6-dione (2.0 g, 62% yield) as a white solid._LC-MS (ESI): mass calcd. for C13H11NO3, 229.1; m/z found, 230.2 [M+H]+.
To a solution of 3-(benzofuran-4-yl)piperidine-2,6-dione (4 g, 17.4 mmol, 1 eq.) in MeCN (80 mL) was added DMF (0.20 mL, 2.6 mmol, 0.15 eq.) and NBS (3.7 g, 20.9 mmol, 1.2 eq.), the mixture was stirred for 50° C. at 16 hours. The resulting solution was diluted with 200 mL of H2O and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by Prep-HPLC (Instrument: E-Prep LC 012; Column: Kromasil EternityXT C18 21.2*250 mm, 10-; phase A: H2O(0.1% FA), phase B: MeCN) to give 3-(2-bromobenzofuran-4-yl)piperidine-2,6-dione (800 mg, 15% yield) as a yellow solid. 2.5 g of 3-(benzofuran-4-yl)piperidine-2,6-dione was recycled. LC-MS (ESI): mass calcd. for C13H10BrNO3, 306.98/308.98; m/z found, 308.0/310.0 [M+H]+.
To a solution of 3-(2-bromobenzofuran-4-yl)piperidine-2,6-dione (400 mg, 1.30 mmol, 1.0 eq.) in DMF (8 mL) was added tert-butyl prop-2-yn-1-ylcarbamate (403 mg, 2.60 mmol, 2.0 eq.), Pd(PPh3)2C12 (91 mg, 130 μmol, 0.1 eq.), CuI (25 mg, 130 μmol, 0.1 eq.), TEA (1.8 mL, 13.0 mmol, 10.0 eq.) at 25° C. The mixture was then stirred at 80° C. for 5 hours under N2. The resulting solution was diluted with 30 mL of H2O and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-40% EtOAC in PE) to give tert-butyl (3-(4-(2,6-dioxopiperidin-3-yl)benzofuran-2-yl)prop-2-yn-1-yl)carbamate (260 mg, 52% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C21H22N2O5, 382.15; m/z found, 383.4 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.89 (s, 1H), 7.51-7.42 (m, 2H), 7.37-7.33 (m, 1H), 7.27 (s, 1H), 7.13 (d, J=7.3 Hz, 1H), 4.22 (dd, J=12.2, 4.9 Hz, 1H), 4.09-4.03 (m, 2H), 2.76-2.67 (m, 1H), 2.58-2.52 (m, 1H), 2.39-2.31 (m, 1H), 2.07-2.00 (m, 1H), 1.41 (s, 9H).
A solution of tert-butyl (3-(4-(2,6-dioxopiperidin-3-yl)benzofuran-2-yl)prop-2-yn-1-yl)carbamate (220 mg, 575 μmol, 1.0 eq.) in DCM (5 mL) added TFA (1 mL) at room temperature. The mixture was stirred at 25° C. for 1 hour. The residue was concentrated under reduced pressure to give 3-(2-(3-aminoprop-1-yn-1-yl)benzofuran-4-yl)piperidine-2,6-dione (220 mg, crude) as an yellow oil which was directly used to next step without purification.
LC-MS (ESI): mass calcd. for C16H14N2O3, 282.10; m/z found, 283.1 [M+H]+.
To a solution of 2,4-dichloro-5-nitropyrimidine (40 g, 206 mmol, 1.0 eq.) in THE (400 mL) was added K2CO3 (57 g, 412 mmol, 2.0 eq.) and methyl 2-hydroxyacetate (20.4 g, 227 mmol, 1.1 eq.). The reaction mixture was stirred at 25° C. for 16 hours. The reaction was diluted with water and extracted with EtOAc (100 mL×3). The combined organic layers were washed with brine (100 mL×3), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by silica gel chromatography (100-200 mesh silica gel, 0-50% EtOAc in PE) to give methyl 2-((2-chloro-5-nitropyrimidin-4-yl)oxy)acetate (11 g, 22% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C7H6ClN3O5, 247; m/z found, 248 [M+H]+.
To a solution of methyl 2-((2-chloro-5-nitropyrimidin-4-yl)oxy)acetate (10 g, 40.4 mmol, 1.0 eq.), Fe (2.3 g, 40.4 mmol, 1.Oeq.) in AcOH (10 mL). The reaction mixture was stirred at 80° C. for 2 hours. The reaction mixture was poured into water and extracted with EtOAc (30 ml×3). The organic layers were washed with brine, dried Na2SO4 and concentrated. The residue was purified by column chromatography on silica gel eluted with PE: EtOAc (100:1˜1:1) to give 2-chloro-5H-pyrimido[4,5-b][1,4]oxazin-6(7H)-one (3.5 g, 47% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C6H4ClN3O2, 185; m/z found, 186 [M+H]+.
To a solution of 2-chloro-5H-pyrimido[4,5-b][1,4]oxazin-6(7H)-one (3.5 g, 18.9 mmol, 1 eq.) in THF (30 mL) was added BH3.THF (5.7 mL, 56.6 mmol, 3.0 eq., 10 M in THF). The reaction mixture was stirred at 40° C. for 1 hour. The reaction mixture was poured into water and extracted with EtOAc (30 ml×3). The organic layers were washed with brine, dried Na2SO4 and concentrated. The residue was purified by column chromatography on silica gel eluted with PE:EtOAc (100:1˜1:1) to give 2-chloro-6,7-dihydro-5H-pyrimido[4,5-b][1,4]oxazine (1.3 g, 40% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C6H6ClN3O, 171; m/z found, 172 [M+H]+. 1H NMR (400 MHz, DMSO-d6) δ 7.80 (s, 1H), 6.40 (s, 1H), 4.48-4.24 (m, 2H), 3.32-3.28 (m, 2H).
A mixture of 2-chloro-6,7-dihydro-5H-pyrimido[4,5-b][1,4]oxazine (1.0 g, 5.8 mmol, 1.0 eq.), methyl 3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate (3.2 g, 11.6 mmol, 2.0 eq,.), Pd(dtbpf)Cl2 (379 mg, 583 μmol, 0.1 eq.) and K3PO4 (3.7 g, 17.4 mmol, 3.0 eq.) in 1,4-Dioxane (20 mL) and H2O(1.0 mL) was stirred at 100° C. for 1 hour under N2 atmosphere. The resulting solution was diluted with 100 mL of water and extracted with EtOAc (100 mL×3). The combined organic layers were washed with brine (100 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to give methyl 5-(6,7-dihydro-5H-pyrimido[4,5-b][1,4]oxazin-2-yl)-3-methylpicolinate (1.0 g, 60% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C14H14N4O3, 286.1; m/z found, 287.1 [M+H]+.
A mixture of methyl 5-(6,7-dihydro-5H-pyrimido[4,5-b][1,4]oxazin-2-yl)-3-methylpicolinate (800 mg, 2.8 mmol, 1.0 eq.), 5-bromo-1,3-dimethyl-1,3-dihydro-2H-benzo[d]imidazol-2-one (808 mg, 3.4 mmol, 1.2 eq.), Ru-Phos Pd G1 (407 mg, 0.6 mmol, 0.2 eq.), Ru-Phos (260 mg, 0.6 mmol, 0.2 eq.) and Cs2CO3 (2.7 g, 8.4 mmol, 3.0 eq.) in 1,4-Dioxane (10 mL) was stirred at 100° C. for 16 hours under N2 atmosphere. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-3% MeOH in DCM) to give methyl 5-(5-(1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-6,7-dihydro-5H-pyrimido[4,5-b][1,4]oxazin-2-yl)-3-methylpicolinate (600 mg, 48% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C23H22N6O4, 446.2; m/z found, 447.2 [M+H]+.
To a solution of methyl 5-(5-(1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-6,7-dihydro-5H-pyrimido[4,5-b][1,4]oxazin-2-yl)-3-methylpicolinate (600 mg, 1.3 mmol, 1.0 eq.) in THF (4 mL) and water (4 mL) was added lithium hydroxide (64 mg, 2.7 mmol, 2.0 eq.). The reaction mixture was stirred at 25° C. for 1 hour. Then the mixture was concentrated to afford lithium 5-(5-(1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-6,7-dihydro-5H-pyrimido[4,5-b][1,4]oxazin-2-yl)-3-methylpicolinate (600 mg, crude) as a Li salt. LC-MS (ESI): mass calcd. for C22H19LiN6O4, 438.2; m/z found, 432.2 [M+H]+. 1H NMR (400 MHz, DMSO-d6) δ 8.95 (s, 1H), 8.21 (s, 1H), 7.96 (S, 1H), 7.28 (s, 1H), 7.23 (d, J=6.7 Hz, 1H), 7.10 (d, J=8.1 Hz, 1H), 4.60 (s, 2H), 3.78 (s, 2H), 3.41 (s, 3H), 3.36 (s, 3H), 3.33 (s, 3H).
A mixture of lithium 5-(5-(1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-6,7-dihydro-5H-pyrimido[4,5-b][1,4]oxazin-2-yl)-3-methylpicolinate (300 mg, 0.7 mmol, 1.0 eq.), 3-(2-(3-aminoprop-1-yn-1-yl)benzofuran-4-yl)piperidine-2,6-dione (215.4 mg, 0.8 mmol, 1.1 eq.), HATU (527.2 mg, 1.4 mmol, 2.0 eq.) in DMF (3 mL) was added DIPEA (0.37 mL, 2.1 mmol, 3.0 eq.) and stirred at 0 9C for 30 minutes. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-5 00 MeOH in DCM) and Prep-TIPLC (Instrument:FRC-40; Column: welch xbidge xb —C 18 5 μm 21.2*250 mm, 10 um; phase A: H2 (0.1%(FA), phase B: MeCN) to give 5-(5-(1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-6,7-dihydro-5H-pyrimido[4,5-b][1,4]oxazin-2-yl)-N-(3-(4-(2,6-dioxopiperidin-3-yl)benzofuran-2-yl)prop-2-yn-1-yl)-3-methylpicolinamide (150 mg, yield 31%) as a yellow solid. LC-MS (ESI): mass calcd. for C38H32N8O6, 696.2; m/z found, 697.2 [M+H]. 1H NMR (400 l z, DMSO-d6) δ 10.88 (s, 1H), 9.27 (t, J=6.0 Hz, 1H), 9.21-9.14 (, 1H), 8.45-8.37 (m, 1H), 8.00 (s, 1H), 7.47 (d, J=8.3 Hz, 1H), 7.34 (t, J=7.9 Hz, 1H), 7.30 (s, 2H), 7.24 (d, J 8.3 Hz, 1H), 7.15-7.10 (s, 2H), 4.65-4.59 (m, 2H), 4.39 (d, J=5.8 Hz, 2H), 4.25-4.19 (m, 1H), 3.84-3.78 (m, 2H), 3.36 (s, 3H), 3.33 (s, 3H), 2.74-2.67 (m, 1H), 2.65 (s, 3H), 2.56-2.53 (m, 1H), 2.37-2.31 (s, 1H), 2.06-1.98 (m, 1H).
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N-(3-(1-(2,6-Dioxopiperidin-3-yl)-3-methyl-1H-indazol-6-yl)prop-2-yn-1-yl)-5-(8-(7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)isoquinolin-3-yl)picolinamide was prepared from 6-bromo-3-methyl-1H-indazole according to the procedures described in Example A1, Steps A D. In the final step, Lithium 5-(8-(7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)isoquinolin-3-yl)picolinate (Intermediate 4) was used as the coupling partner. The title compound (14.7 mg, 12% yield over 4 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C44H37N7O4, 727.3; m/z found, 728.1 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.05 (s, 1H), 9.46 (d, J=1.6 Hz, 1H), 9.37 (t, 1H), 8.85-8.78 (m, 2H), 8.77-8.72 (m, 1H), 8.24-8.18 (m, 2H), 8.00-7.94 (m, 1H), 7.74-7.69 (m, 2H), 7.66-7.61 (m, 1H), 7.54 (s, 1H), 7.20-7.12 (m, 2H), 7.09 (s, 1H), 5.87-5.70 (m, 1H), 4.40 (d, J=5.9 Hz, 2H), 3.77 (s, 3H), 2.87-2.81 (m, 2H), 2.80-2.75 (m, 1H), 2.74-2.71 (m, 1H), 2.71-2.63 (m, 1H), 2.47 (s, 3H), 2.26-2.17 (m, 1H), 1.91 (s, 3H), 1.31 (t, J=7.6 Hz, 3H).
To a solution of 5-(8-(7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)isoquinolin-3-yl)picolinic acid (15 mg, 33.4 μmol, 1.0 eq.; Intermediate 4), HATU (16 mg, 43.4 μmol, 1.3 eq.), and DIPEA (0.1 mL, 100 μmol, 3.0 eq.) in DMF (4 mL) was added a mixture of 3-(6-(3-aminoprop-1-yn-1-yl)-1H-benzo[d]imidazol-1-yl)piperidine-2,6-dione and 3-(5-(3-aminoprop-1-yn-1-yl)-1H-benzo[d]imidazol-1-yl)piperidine-2,6-dione (20 mg, 53.4 μmol, 1.6 eq.; Example A15, Step C) at 0° C. The mixture was stirred at room temperature for 1 hour under N2 atmosphere. The resulting solution was diluted with 20 mL of H2O and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The resulting solution was purified by Prep-HPLC (Triant C18 5 m column, 0-60% MeOH in H2O with 0.1% FA) to afford N-(3-(1-(2,6-dioxopiperidin-3-yl)-1H-benzo[d]imidazol-6-yl)prop-2-yn-1-yl)-5-(8-(7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)isoquinolin-3-yl)picolinamide (3.3 mg, 14% yield) as a white solid.
LC-MS (ESI): mass calcd. for C43H35N7O4, 713.3; m/z found, 714.5 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.24 (s, 1H), 9.46 (d, J=1.7 Hz, 1H), 9.37 (t, J=5.8 Hz, 1H), 8.83-8.80 (m, 2H), 8.78-8.70 (m, 2H), 8.24-8.19 (m, 2H), 7.98 (t, 1H), 7.86 (s, 1H), 7.73 (d, J=8.4 Hz, 1H), 7.65 (d, J=7.0 Hz, 1H), 7.55 (s, 1H), 7.39 (d, J=7.4 Hz, 1H), 7.18 (s, 1H), 7.09 (s, 1H), 5.81 (dd, J=12.2, 5.0 Hz, 1H), 4.40 (d, J=5.9 Hz, 2H), 3.77 (s, 3H), 2.88-2.79 (m, 4H), 2.75-2.68 (m, 1H), 2.32-2.25 (m, 1H), 1.92 (s, 3H), 1.31 (t, J=7.6 Hz, 3H).
N-(3-(1-(2,6-Dioxopiperidin-3-yl)-5-methyl-1H-indazol-6-yl)prop-2-yn-1-yl)-5-(8-(7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)isoquinolin-3-yl)picolinamide was prepared from 5-(8-(7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)isoquinolin-3-yl)picolinic acid (Intermediate 4) and 3-(6-(3-aminoprop-1-yn-1-yl)-5-methyl-1H-indazol-1-yl)piperidine-2,6-dione (as prepared in Example A8, Step C) according to the procedure described in Example A1, Step D. The title compound (6 mg, 12% yield) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C44H37N7O4, 727.3; m/z found, 728 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.06 (s, 1H), 9.47 (d, J=1.6 Hz, 1H), 9.40 (t, J=6.0 Hz, 1H), 8.85-8.80 (m, 2H), 8.78-8.74 (m, 1H), 8.24 (s, 1H), 8.21 (d, J=2.1 Hz, 1H), 8.05 (s, 1H), 8.01-7.95 (m, 1H), 7.77 (s, 1H), 7.67-7.63 (m, 2H), 7.55 (s, 1H), 7.19 (s, 1H), 7.10 (s, 1H), 5.85 (dd, J=11.6, 5.0 Hz, 1H), 4.44 (d, J=5.9 Hz, 2H), 3.77 (s, 3H), 2.87-2.83 (m, 2H), 2.78-2.67 (m, 3H), 2.46 (s, 3H), 2.27-2.21 (m, 1H), 1.92 (s, 3H), 1.32 (t, J=7.6 Hz, 3H).
To a solution of piperidine-2,6-dione (2 g, 17.7 mmol, 1.0 eq.) in THF (5 mL) was added LiHMDS (35.4 mL, 35.4 mmol, 2.0 eq., 1.0 M in THF) and 1-bromo-3-(bromomethyl)benzene (4.4 g, 17.7 mmol, 1.0 eq.) at −40° C. The mixture was stirred at 25° C. for 2 hours under N2. The resulting solution was quenched with sat. aq. NH4Cl and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give 3-(3-bromobenzyl)piperidine-2,6-dione (500 mg, 10% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C12H12BrNO2, 281.0/283.0; m/z found, 282/284 [M+H]+.
N-(3-(3-((2,6-Dioxopiperidin-3-yl)methyl)phenyl)prop-2-yn-1-yl)-5-(8-(7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)isoquinolin-3-yl)picolinamide was prepared from 3-(3-bromobenzyl)piperidine-2,6-dione according to the procedures described in Example A1, Steps B D. The title compound (20 mg, 15% yield over 3 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C43H37N5O4, 687.3; m/z found, 688 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.67 (s, 1H), 9.46 (d, J=2.1 Hz, 1H), 9.37-9.31 (m, 1H), 8.86-8.79 (m, 2H), 8.78-8.74 (m, 1H), 8.24-8.17 (m, 2H), 8.00-7.93 (m, 1H), 7.64 (d, J=7.1 Hz, 1H), 7.54 (s, 1H), 7.31-7.26 (m, 3H), 7.23 (d, J=6.5 Hz, 1H), 7.18 (s, 1H), 7.10 (s, 1H), 4.36 (d, J=6.0 Hz, 2H), 3.77 (s, 3H), 3.20-3.15 (m, 1H), 2.88-2.77 (m, 3H), 2.68-2.62 (m, 1H), 2.46-2.42 (m, 2H), 1.92 (s, 3H), 1.68-1.61 (m, 1H), 1.55-1.48 (m, 1H), 1.31 (t, J=7.6 Hz, 3H).
N-(3-(1-(2,6-Dioxopiperidin-3-yl)-1H-indazol-6-yl)prop-2-yn-1-yl)-5-(8-(7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)isoquinolin-3-yl)picolinamide was prepared from 5-(8-(7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)isoquinolin-3-yl)picolinic acid (Intermediate 4) and 3-(6-(3-aminoprop-1-yn-1-yl)-1H-indazol-1-yl)piperidine-2,6-dione (as prepared in Example A11, Step C) according to the procedure described in Example A1, Step D. The title compound (25.7 mg, 38% yield) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C43H35N7O4, 713.3; m/z found, 714.4 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.08 (s, 1H), 9.47 (d, J=2.0 Hz, 1H), 9.38 (t, J=5.8 Hz, 1H), 8.83-8.78 (m, 2H), 8.76 (dd, J=8.2, 2.1 Hz, 1H), 8.25-8.18 (m, 2H), 8.15 (s, 1H), 8.00-7.95 (m, 1H), 7.81 (s, 1H), 7.77 (d, J=8.4 Hz, 1H), 7.65 (d, J=7.0 Hz, 1H), 7.55 (s, 1H), 7.21-7.15 (m, 2H), 7.09 (s, 1H), 5.93-5.84 (m, 1H), 4.40 (d, J=5.7 Hz, 2H), 3.77 (s, 3H), 2.87-2.82 (m, 2H), 2.78-2.72 (m, 2H), 2.70-2.64 (m, 1H), 2.27-2.21 (m, 1H), 1.92 (s, 3H), 1.31 (t, J=7.6 Hz, 3H).
A mixture of 6-bromo-4-iodo-1H-indazole (2 g, 6.19 mmol, 1.0 eq.), 2,4,6-trimethyl-1,3,5,2,4,6-trioxatriborinane (7.8 g, 31.0 mmol, 5.0 eq., w.t. =50%), K2CO3 (2.6 g, 18.6 mmol, 3.0 eq.), and Pd(dppf)Cl2 (453 mg, 619 μmol, 0.1 eq.) in 1,4-dioxane (30 mL) was stirred at 100° C. under N2 for 16 hours. The resulting solution was concentrated in vacuo. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give 6-bromo-4-methyl-1H-indazole (300 mg, 23% yield) as a white solid.
LC-MS (ESI): mass calcd. for C8H7BrN2, 210.0/212.0; m/z found, 210.9/212.9 [M+H]+.
To a mixture of 6-bromo-4-methyl-1H-indazole (300 mg, 1.42 mmol, 1 eq.) in DMF (10 mL) was added 3-bromopiperidine-2,6-dione (409 mg, 2.13 mmol, 1.5 eq.) and NaH (114 mg, 2.84 mmol, 2.0 eq., w.t. =60%) at 0° C. The mixture was stirred at 60° C. for 16 hours. The reaction mixture was partially concentrated in vacuo. The concentrate was quenched with sat. aq. NH4Cl (20 mL) and extracted with EtOAc (30 mL×3). The combined organic layers were washed brine (20 mL), dried over Na2SO4, and concentrated in vacuo. The residue was purified by flash silica gel chromatography (0-70% EtOAc in PE) to afford 3-(6-bromo-4-methyl-1H-indazol-1-yl)piperidine-2,6-dione (110 mg, 24% yield) as a white solid.
LC-MS (ESI): mass calcd. for C13H12BrN3O2, 321.0/323.0; m/z found, 322/324 [M+H]+.
N-(3-(1-(2,6-Dioxopiperidin-3-yl)-4-methyl-1H-indazol-6-yl)prop-2-yn-1-yl)-5-(8-(7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)isoquinolin-3-yl)picolinamide was prepared from 3-(6-bromo-4-methyl-1H-indazol-1-yl)piperidine-2,6-dione according to the procedures described in Example A5, Steps D-H. In the penultimate step, 5-(8-(7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)isoquinolin-3-yl)picolinic acid (Intermediate 4) was used as the coupling partner. The title compound (11 mg, 20% yield over 5 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C44H37N7O4, 727.3; m/z found, 728.5 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.07 (s, 1H), 9.48-9.45 (m, 1H), 9.39-9.34 (m, 1H), 8.82 (s, 2H), 8.78-8.74 (m, 1H), 8.24-8.17 (m, 3H), 8.00-7.95 (m, 1H), 7.66-7.63 (m, 1H), 7.61 (s, 1H), 7.55 (s, 1H), 7.20-7.17 (m, 1H), 7.10 (s, 1H), 6.98 (s, 1H), 5.85 (d, J=11.5 Hz, 1H), 4.39 (d, J=5.8 Hz, 2H), 3.77 (s, 3H), 2.87-2.68 (m, 5H), 2.53 (s, 3H), 2.34-2.21 (m, 1H), 1.92 (s, 3H), 1.31 (t, J=7.6 Hz, 3H).
N-(3-(3-((2,6-Dioxopiperidin-3-yl)amino)-1-methyl-1H-pyrazol-5-yl)prop-2-yn-1-yl)-5-(8-(7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)isoquinolin-3-yl)picolinamide was prepared from 5-(8-(7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)isoquinolin-3-yl)picolinic acid (Intermediate 4) and 3-((5-(3-aminoprop-1-yn-1-yl)-1-methyl-1H-pyrazol-3-yl)amino)piperidine-2,6-dione (as prepared in Example A24, Step B) according to the procedures described in Example A1, Step D. The title compound (30.3 mg, 66% yield) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C40H36N8O4, 692.3; m/z found, 693.3 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.74 (s, 1H), 9.46 (s, 1H), 9.40 (t, J=5.9 Hz, 1H), 8.84-8.78 (m, 2H), 8.75 (d, J=8.2 Hz, 1H), 8.24-8.17 (m, 2H), 7.98 (t, J=7.6 Hz, 1H), 7.64 (d, J=7.0 Hz, 1H), 7.54 (s, 1H), 7.18 (s, 1H), 7.09 (s, 1H), 5.76 (s, 1H), 5.64 (d, J=6.8 Hz, 1H), 4.39 (d, J=5.6 Hz, 2H), 4.21-4.13 (m, 1H), 3.77 (s, 3H), 3.63 (s, 3H), 2.84 (q, J=7.3 Hz, 2H), 2.70-2.63 (m, 1H), 2.56-2.53 (m, 1H), 2.22-2.14 (m, 1H), 1.92 (s, 3H), 1.89-1.82 (m, 1H), 1.31 (t, J=7.6 Hz, 3H).
N-(3-(3-(2,6-Dioxopiperidin-3-yl)-1-methyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)prop-2-yn-1-yl)-5-(8-(7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)isoquinolin-3-yl)picolinamide was prepared from 5-(8-(7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)isoquinolin-3-yl)picolinic acid (Intermediate 4) and 3-(6-(3-aminoprop-1-yn-1-yl)-3-methyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-1-yl)piperidine-2,6-dione (as prepared in Example A18, Step C) according to the procedures described in Example A1, Step D. The title compound (60 mg, 60% yield) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C44H37N7O5, 743.3; m/z found, 744.5 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.07 (s, 1H), 9.48-9.44 (m, 1H), 9.34-9.28 (m, 1H), 8.83-8.80 (m, 2H), 8.76 (dd, J=8.2, 2.2 Hz, 1H), 8.23-8.19 (m, 2H), 8.00-7.95 (m, 1H), 7.66-7.62 (m, 1H), 7.55 (s, 1H), 7.26-7.09 (m, 5H), 5.42-5.35 (m, 1H), 4.36 (d, J=5.9 Hz, 2H), 3.77 (s, 3H), 3.34 (s, 3H), 2.89-2.80 (m, 3H), 2.74-2.66 (m, 1H), 2.63-2.57 (m, 1H), 2.02-1.97 (m, 1H), 1.94-1.90 (m, 3H), 1.33-1.29 (m, 3H).
5-(8-(7-(1,1-Difluoroethyl)-1,3-dimethyl-2-oxo-1,2,3,4-tetrahydroquinazolin-5-yl)isoquinolin-3-yl)-N-(3-(1-(2,6-dioxopiperidin-3-yl)-1H-indazol-6-yl)prop-2-yn-1-yl)picolinamide was prepared from 5-bromo-7-(1,1-difluoroethyl)-1,3-dimethyl-3,4-dihydroquinazolin-2(1H)-one (Intermediate 7) according to the procedures described in Intermediate 4, Steps E & F, and Example A1, Step D. In the final step, 3-(6-(3-aminoprop-1-yn-1-yl)-1H-indazol-1-yl)piperidine-2,6-dione (as prepared in Example A11, Step C) was used as the coupling partner. The title compound (11.2 mg, 16% yield) was obtained as a yellow solid.
LC-MS (ESI): mass calcd. for C42H34F2N8O4, 752.3; m/z found, 753 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.07 (s, 1H), 9.49 (d, J=1.6 Hz, 1H), 9.39 (t, J=5.9 Hz, 1H), 8.93 (s, 1H), 8.81-8.76 (m, 2H), 8.23 (d, J=8.2 Hz, 1H), 8.19 (d, J=8.4 Hz, 1H), 8.15 (s, 1H), 7.98-7.92 (m, 1H), 7.82 (s, 1H), 7.78 (d, J=8.3 Hz, 1H), 7.63 (d, J=6.8 Hz, 1H), 7.22 (s, 1H), 7.18 (d, J=9.3 Hz, 2H), 5.94-5.86 (m, 1H), 4.41 (d, J=5.9 Hz, 2H), 4.17 (d, J=14.9 Hz, 1H), 3.93 (d, J=14.9 Hz, 1H), 3.35 (s, 3H), 2.79-2.72 (m, 2H), 2.70 (s, 3H), 2.28-2.22 (m, 1H), 2.11-2.00 (m, 4H).
To a mixture of 2-chloro-5-iodopyridine (500 mg, 2.1 mmol, 1.0 eq.), Pd2(dba)3 (191 mg, 209 μmol, 0.1 eq.), methyl 3-mercaptopropanoate (753 mg, 6.26 mmol, 3.0 eq.), and Xant-Phos (242 mg, 418 μmol, 0.2 eq.) in 1,4-dioxane (10 mL) was added DIPEA (1 mL, 6.26 mmol, 3.0 eq.) at room temperature. The mixture was stirred for 85° C. for 3 hours. The resulting solution was diluted with 40 mL of H2O and extracted with EtOAc (60 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-60% EtOAc in PE) to give methyl 3-((6-chloropyridin-3-yl)thio)propanoate (300 mg, 62% yield) as a yellow oil.
LC-MS (ESI): mass calcd. for C9H10ClNO2S, 231.0; m/z found, 232 [M+H]+.
To a solution of methyl 3-((6-chloropyridin-3-yl)thio)propanoate (300 mg, 1.3 mmol, 1.0 eq.) in THF (5 mL) was added t-BuOK (290 mg, 2.5 mmol, 2.0 eq.) at −40° C. The mixture was stirred at −40° C. for 1 hour. The mixture was concentrated under reduced pressure to afford potassium 6-chloropyridine-3-thiolate (500 mg, crude) as a white solid.
LC-MS (ESI): mass calcd. for C5H4ClNS, 145.0; m/z found, 146 [M+H]+.
To a mixture of potassium 6-chloropyridine-3-thiolate (500 mg, crude), Pd2(dba)3 (65 mg, 71.4 μmol, 0.1 eq.), 5-bromo-7-ethyl-1,3-dimethylquinolin-2(1H)-one (200 mg, 714 μmol, 1.0 eq.; Intermediate 8) and Xant-Phos (82 mg, 143 μmol, 0.2 eq.) in 1,4-dioxane (10 mL) was added DIPEA (373 μL, 2.1 mmol, 3.0 eq.) at room temperature. The mixture was stirred at 90° C. for 4 hours. The resulting solution was diluted with 40 mL of H2O and extracted with EtOAc (60 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-60% EtOAc in PE) to give 5-((6-chloropyridin-3-yl)thio)-7-ethyl-1,3-dimethylquinolin-2(1H)-one (80 mg, 33% yield) as an off-white solid.
LC-MS (ESI): mass calcd. for C18H17ClN2OS, 344.1; m/z found, 345 [M+H]+.
To a mixture of 5-((6-chloropyridin-3-yl)thio)-7-ethyl-1,3-dimethylquinolin-2(1H)-one (70 mg, 203 μmol, 1.0 eq.), X-Phos Pd G2 (16 mg, 20.3 μmol, 0.1 eq.), and K2CO3 (56 mg, 406 μmol, 2.0 eq.) in 1,4-dioxane (2 mL) and water (0.1 mL) was added methyl 3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate (56 mg, 203 μmol, 1.0 eq.; Example A35, Step A) at room temperature. The mixture was stirred at 90° C. for 2 hours. The resulting solution was diluted with 30 mL of H2O and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to give methyl 5-((7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)thio)-5′-methyl-[2,3′-bipyridine]-6′-carboxylate (40 mg, 43% yield) as a solid.
LC-MS (ESI): mass calcd. for C26H25N3O3S, 459.2; m/z found, 460.1 [M+H]+.
To a solution of methyl 5-((7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)thio)-5′- methyl-[2,3′-bipyridine]-6′-carboxylate (40 mg, 87.0 μmol, 1.0 eq.) in DCM (5 mL) was added m-CPBA (75 mg, 435 μmol, 5.0 eq.) at room temperature. The mixture was stirred for 5 hours at room temperature. The resulting solution was diluted with 30 mL of H2O and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to give methyl 5-((7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)sulfonyl)-5′-methyl-[2,3′-bipyridine]-6′-carboxylate (12 mg, 28% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C26H25N305S, 491.2; m/z found, 492.1 [M+H]+.
To a solution of methyl 5-((7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)sulfonyl)-5′-methyl-[2,3′-bipyridine]-6′-carboxylate (10 mg, 21.8 μmol, 1.0 eq.) in THF (1 mL) and water (1 mL) was added LiGH (2 mg, 43.5 μmol, 2.0 eq.) at room temperature. The mixture was stirred at room temperature for 1 hour. The mixture was concentrated in vacuum to afford 5-((7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)sulfonyl)-5′-methyl-[2,3′-bipyridine]-6′-carboxylic acid (9 mg, 93% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C25H23N305S, 477.1; m/z found, 478.1 [M+H]+.
To a solution of 5-((7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)sulfonyl)-5′-methyl-[2,3′-bipyridine]-6′-carboxylic acid (10 mg, 201 μmol, 1.0 eq.), 3-((3-(3-aminoprop-1-yn-1-yl)phenyl)amino)piperidine-2,6-dione (8 mg, 31.4 μmol, 1.5 eq.; Intermediate 6) and HATU (16 mg, 41.9 μmol, 2.0 eq.) in DMF (5 mL) was added DIPEA (0.1 mL, 41.9 μmol, 2.0 eq.) at room temperature. The mixture was stirred at room temperature for 1 hour. The resulting solution was diluted with 30 mL of H2O and extracted with EtOAc (30 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The mixture was purified by Prep-HPLC (Triant C18 5 m column, 0-60% MeCN in H2O with 0.1% FA) to afford N-(3-(3-((2,6-dioxopiperidin-3-yl)amino)phenyl)prop-2-yn-1-yl)-5-((7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)sulfonyl)-5′-methyl-[2,3′-bipyridine]-6′-carboxamide (4.1 mg, 26% yield) as a white solid.
LC-MS (ESI): mass calcd. for C39H36N606S, 716.2; m/z found, 717.1 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.77 (s, 1H), 9.33 (d, J=2.0 Hz, 1H), 9.18-9.11 (m, 2H), 8.59 (dd, J=8.5, 2.5 Hz, 1H), 8.48-8.44 (m, 2H), 8.35 (d, J=8.5 Hz, 1H), 8.06 (d, J=1.3 Hz, 1H), 7.77 (s, 1H), 7.11-6.99 (m, 1H), 6.71-6.60 (m, 3H), 6.00 (d, J=8.0 Hz, 1H), 4.41-4.33 (m, 1H), 4.29 (d, J=5.9 Hz, 2H), 3.67 (s, 3H), 2.90 (q, J=7.5 Hz, 2H), 2.78-2.69 (m, 1H), 2.63 (s, 3H), 2.59-2.53 (m, 1H), 2.19 (s, 3H), 2.10-2.04 (m, 1H), 1.92-1.81 (m, 1H), 1.32 (t, J=7.6 Hz, 3H).
To a solution of 4-bromo-3-chloroaniline (1 g, 4.84 mmol, 1.0 eq.) in DCM (20 mL) was added DMAP (59 mg, 484 μmol, 0.1 eq.) and Boc2O(1.3 g, 5.81 mmol, 1.2 eq.) at 0° C. The mixture was stirred at room temperature for 3 hours. The reaction mixture was diluted with water (80 mL) and extracted with EtOAc (50 mL×3). The combined organic layers were washed brine (50 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash silica gel chromatography (0-70% EtOAc in PE) to afford tert-butyl (4-bromo-3-chlorophenyl)carbamate (550 mg, 37% yield) as a yellow oil.
LC-MS (ESI): mass calcd. for C11H13BrClNO2, 305.0/307.0; no mass signal found.
To a solution of tert-butyl (4-bromo-3-chlorophenyl)carbamate (700 mg, 2.3 mmol, 1.0 eq.) in DMF (15 mL) was added NaH (110 mg, 4.6 mmol, 2.0 eq., w.t. =60%) at 0° C. After 30 mins, Mel (389 mg, 171 μL, 2.7 mmol, 1.2 eq.) was added to this mixture at 0° C. The mixture was stirred at room temperature for 16 hours. The reaction mixture was quenched with sat. aq. NH4Cl (40 mL) and extracted with EtOAc (30 mL×3). The combined organic layers were washed brine (30 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash silica gel chromatography (0-50%EtOAc in PE) to afford tert-butyl (4-bromo-3-chlorophenyl)(methyl)carbamate (650 mg, 89% yield) as a yellow oil.
LC-MS (ESI): mass calcd. for C12H15BrClNO2, 319.0/321.0; no mass signal found.
To a mixture of tert-butyl (4-bromo-3-chlorophenyl)(methyl)carbamate (500 mg, 1.6 mmol, 1.0 eq.) and methyl 3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate (562 mg, 2.0 mmol, 1.3 eq.; Example A35, Step A) in 1,4-dioxane (16 mL) and water (0.8 mL) was added Pd(dppf)Cl2 (114.1 mg, 156.0 μmol, 0.1 eq.) and K2CO3 (647 mg, 4.7 mmol, 3.0 eq.) at room temperature. The mixture was stirred at 100° C. under N2 for 3 hours. The reaction mixture was diluted with water (50 mL) and extracted with EtOAc (30 mL×3). The combined organic layers were washed brine (50 mL), dried over Na2SO4, and concentrated under reduced pressure.
The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give methyl 5-(4-((tert-butoxycarbonyl)(methyl)amino)-2-chlorophenyl)-3-methylpicolinate (500 mg, 82% yield) as a yellow oil.
LC-MS (ESI): mass calcd. for C20H23ClN2O4, 390.1/392.1; m/z found, 391.1/393.1 [M+H]+.
A sample of methyl 5-(4-((tert-butoxycarbonyl)(methyl)amino)-2-chlorophenyl)-3-methylpicolinate (200 mg, 512 μmol, 1.0 eq.) in 4M HCl in 1,4-dioxane (8 mL) was stirred at 0° C. The reaction mixture was stirred at room temperature for 1 hour. The reaction mixture was concentrated to afford methyl 5-(2-chloro-4-(methylamino)phenyl)-3-methylpicolinate (110 mg, 74% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C15H15ClN2O2, 290.1; m/z found, 291.1 [M+H]+.
To a solution of methyl 5-(2-chloro-4-(methylamino)phenyl)-3-methylpicolinate (80 mg, 275 μmol, 1.0 eq.) and 5-bromo-7-ethyl-1,3-dimethylquinolin-2(1H)-one (93 mg, 330 μmol, 1.2 eq.; Intermediate 8) in toluene (8 mL) was added Pd2(dba)3 (25 mg, 27.5 μmol, 0.1 eq.), Xant-Phos (40 mg, 68.8 μmol, 0.25 eq.), and Cs2CO3 (179 mg, 550 μmol, 2.0 eq.) at room temperature. The mixture was stirred at 100° C. for 16 hours under N2 atmosphere. The reaction mixture was diluted with water (40 mL) and extracted with EtOAc (30 mL×3). The combined organic layers were washed brine (40 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash silica gel chromatography (0-10% MeOH in DCM) to afford methyl 5-(2-chloro-4-((7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)(methyl)amino)phenyl)-3-methylpicolinate (60 mg, 44% yield) as a yellow oil.
LC-MS (ESI): mass calcd. for C28H28ClN3O3, 489.2; m/z found, 490.2 [M+H]+.
To a solution of methyl 5-(2-chloro-4-((7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)(methyl)amino)phenyl)-3-methylpicolinate (40 mg, 81.6 μmol, 1.0 eq.) in THF (3 mL) and water (1.5 mL) was added LiOH (3 mg, 122 μmol, 1.5 eq.) at 0° C. The reaction mixture was stirred at room temperature for 1 hour. The reaction mixture was concentrated in vacuo to afford 5-(2-chloro-4-((7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)(methyl)amino)phenyl)-3-methylpicolinic acid (35 mg, 90% yield) as a white solid.
LC-MS (ESI): mass calcd. for C27H26ClN3O3, 475.2; m/z found, 476.3 [M+H]+.
To a solution of 5-(2-chloro-4-((7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)(methyl)amino)phenyl)-3-methylpicolinic acid (35 mg, 73.5 μmol, 1.0 eq.) and 3-((3-(3-aminoprop-1-yn-1-yl)phenyl)amino)piperidine-2,6-dione (19 mg, 73.5 μmol, 1.0 eq.; Intermediate 6) in DMF (6 mL) was added HATU (56 mg, 147 μmol, 2.0 eq.) and DIPEA (64 μL, 368 μmol, 5.0 eq.) at room temperature. The mixture was stirred at room temperature for 1 hour. The reaction mixture was diluted with water (40 mL) and extracted with EtOAc (30 mL×3). The combined organic layers were washed brine (40 mL), and dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by Prep-HPLC (Triant C18 5 m column, 0-60% MeCN in H2O with 0.1% FA) to afford 5-(2-chloro-4-((7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)(methyl)amino)phenyl)-N-(3-(3-((2,6-dioxopiperidin-3-yl)amino)phenyl)prop-2-yn-1-yl)-3-methylpicolinamide (15.8 mg, 20% yield) as a white solid.
LC-MS (ESI): mass calcd. for C41H39ClN6O4, 714.3; m/z found, 715.3 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.77 (s, 1H), 9.11-9.04 (m, 1H), 8.51-8.44 (m, 1H), 7.79-7.74 (m, 1H), 7.58 (s, 1H), 7.38 (s, 1H), 7.26 (d, J=8.6 Hz, 1H), 7.08-7.03 (m, 2H), 6.73-6.66 (m, 3H), 6.62 (d, J=7.5 Hz, 1H), 6.51-6.46 (m, 1H), 6.00 (d, J=7.9 Hz, 1H), 4.40-4.33 (m, 1H), 4.28 (d, J=5.8 Hz, 2H), 3.70 (s, 3H), 3.34 (s, 3H), 2.80-2.70 (m, 3H), 2.61-2.53 (m, 4H), 2.11-2.04 (m, 4H), 1.92-1.82 (m, 1H), 1.26 (t, J=7.6 Hz, 3H).
N-(3-(1-(2,6-Dioxopiperidin-3-yl)-1H-benzo[d]imidazol-5-yl)prop-2-yn-1-yl)-5-(8-(7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)isoquinolin-3-yl)picolinamide (3.2 mg, 13% yield) was obtained during the purification described in Example B2 as a white solid.
LC-MS (ESI): mass calcd. for C43H35N7O4, 713.3; m/z found, 714.5 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.26 (s, 1H), 9.47 (d, J=1.6 Hz, 1H), 9.36 (t, J=6.0 Hz, 1H), 8.84-8.80 (m, 2H), 8.77 (dd, J=8.2, 2.2 Hz, 1H), 8.63 (s, 1H), 8.24-8.19 (m, 2H), 7.98 (t, 1H), 7.79 (s, 1H), 7.67-7.62 (m, 2H), 7.55 (s, 1H), 7.43-7.39 (m, 1H), 7.19 (s, 1H), 7.10 (s, 1H), 5.78 (dd, J=12.6, 4.7 Hz, 1H), 4.40 (d, J=5.8 Hz, 2H), 3.77 (s, 3H), 2.94-2.83 (m, 3H), 2.81-2.68 (m, 2H), 2.32-2.27 (m, 1H), 1.92 (s, 3H), 1.32 (t, J=7.6 Hz, 3H).
N-(3-(1-(2,6-Dioxopiperidin-3-yl)-1H-indazol-6-yl)prop-2-yn-1-yl)-5-(8-(7-ethyl-1,3-dimethyl-2-oxo-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidin-5-yl)isoquinolin-3-yl)picolinamide was prepared from 5-chloro-7-ethyl-1,3-dimethyl-3,4-dihydropyrido[2,3-d]pyrimidin-2(1H)-one (Intermediate 9) according to the procedures described in Intermediate 4, Steps E & F, and Example A1, Step D. In the final step, 3-(6-(3-aminoprop-1-yn-1-yl)-1H-indazol-1-yl)piperidine-2,6-dione (as prepared in Example A11, Step C) was used as the coupling partner. The title compound (17 mg, 16% yield over 3 steps) was obtained as a white solid.
LC-MS (ESI): mass calcd. for C41H35N9O4, 717.3; m/z found, 718 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 11.08 (s, 1H), 9.49 (d, J=1.8 Hz, 1H), 9.39 (t, J=6.0 Hz, 1H), 9.00 (s, 1H), 8.83-8.75 (m, 2H), 8.23 (d, J=8.3 Hz, 1H), 8.19 (d, J=8.3 Hz, 1H), 8.15 (s, 1H), 7.95 (t, 1H), 7.82 (s, 1H), 7.78 (d, J=8.4 Hz, 1H), 7.62 (d, J=7.1 Hz, 1H), 7.18 (d, J=8.4 Hz, 1H), 6.92 (s, 1H), 5.95-5.84 (m, 1H), 4.40 (d, J=5.9 Hz, 2H), 4.17 (d, J=14.8 Hz, 1H), 3.93 (d, J=14.8 Hz, 1H), 3.39 (s, 3H), 2.83-2.77 (m, 2H), 2.77-2.73 (m, 2H), 2.72 (s, 3H), 2.71-2.66 (m, 1H), 2.29-2.20 (m, 1H), 1.29 (t, J=7.5 Hz, 3H).
N-(3-(3-((2,6-Dioxopiperidin-3-yl)amino)phenyl)prop-2-yn-1-yl)-5-(4-((7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)(methyl)amino)-2-(trifluoromethyl)phenyl)-3-methylpicolinamide was prepared from 4-bromo-3-(trifluoromethyl)aniline according to the procedures described in Example B11, Steps A-G. The title compound (13.2 mg, 2% yield over 7 steps) was obtained as a yellow solid.
LC-MS (ESI): mass calcd. for C42H39F3N6O4, 748.3; m/z found, 749.3 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.77 (s, 1H), 9.11 (t, J=5.7 Hz, 1H), 8.35 (s, 1H), 7.69-7.59 (m, 2H), 7.39 (s, 1H), 7.23 (d, J=8.6 Hz, 1H), 7.10-7.02 (m, 2H), 6.95 (s, 1H), 6.75-6.66 (m, 3H), 6.62 (d, J=7.4 Hz, 1H), 6.00 (d, J=7.9 Hz, 1H), 4.40-4.33 (m, 1H), 4.28 (d, J=5.8 Hz, 2H), 3.71 (s, 3H), 3.38 (s, 3H), 2.80-2.73 (m, 3H), 2.59 (s, 3H), 2.56-2.53 (m, 1H), 2.10 (s, 3H), 2.08-2.04 (m, 1H), 1.92-1.82 (m, 1H), 1.25 (t, J=7.5 Hz, 3H).
N-(3-(3-((2,6-Dioxopiperidin-3-yl)amino)phenyl)prop-2-yn-1-yl)-5-(4-((7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)(methyl)amino)-2-methylphenyl)-3-methylpicolinamide was prepared from 4-bromo-3-methylaniline according to the procedures described in Example B11, Steps A-G. The title compound (12.7 mg, 2% yield over 7 steps) was obtained as a yellow solid.
LC-MS (ESI): mass calcd. for C42H42N6O4, 694.3; m/z found, 695.5 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.77 (s, 1H), 9.05 (s, 1H), 8.39 (d, J=1.6 Hz, 1H), 7.69 (d, J=1.4 Hz, 1H), 7.59 (s, 1H), 7.34 (s, 1H), 7.08-7.00 (m, 3H), 6.72-6.66 (m, 2H), 6.62 (d, J=7.5 Hz, 1H), 6.58 (d, J=2.1 Hz, 1H), 6.38 (dd, J=8.6, 2.3 Hz, 1H), 6.00 (d, J=7.9 Hz, 1H), 4.41-4.33 (m, 1H), 4.28 (d, J=5.9 Hz, 2H), 3.70 (s, 3H), 3.31 (s, 3H), 2.79-2.70 (m, 3H), 2.62-2.54 (m, 4H), 2.20 (s, 3H), 2.11-2.05 (m, 4H), 1.93-1.83 (m, 1H), 1.27-1.23 (m, 3H).
N-(3-(3-((2,6-Dioxopiperidin-3-yl)amino)phenyl)prop-2-yn-1-yl)-5-((7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)(methyl)amino)-5′-methyl-[2,3′-bipyridine]-6′-carboxamide was prepared from methyl 5′-methyl-5-(methylamino)-[2,3′-bipyridine]-6′-carboxylate (Example A34, Step A) according to the procedures described in Example B11, Steps E-G. The title compound (16.1 mg, 26% yield over 3 steps) was obtained as a yellow solid.
LC-MS (ESI): mass calcd. for C40H39N7O4, 681.3; m/z found, 682.2 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.77 (s, 1H), 9.08-9.00 (m, 2H), 8.25-8.22 (m, 1H), 8.03 (d, J=3.0 Hz, 1H), 7.94-7.89 (m, 1H), 7.59 (s, 1H), 7.39 (s, 1H), 7.10-7.03 (m, 2H), 7.01-6.97 (m, 1H), 6.72-6.66 (m, 2H), 6.64-6.60 (m, 1H), 6.00 (d, J=7.9 Hz, 1H), 4.41-4.33 (m, 1H), 4.28 (d, J=5.9 Hz, 2H), 3.71 (s, 3H), 3.39 (s, 3H), 2.79-2.71 (m, 3H), 2.63 (s, 3H), 2.59-2.53 (m, 1H), 2.10-2.05 (m, 4H), 1.92-1.81 (m, 1H), 1.28-1.24 (m, 3H).
A mixture of 7-ethyl-5-hydroxy-1,3-dimethylquinolin-2(1H)-one (50 mg, 230 μmol, 1.0 eq.; Intermediate 4, Step C), 2,2,6,6-tetramethylheptane-3,5-dione (51 mg, 276 μmol, 1.2 eq.), 2-chloro-5-iodopyridine (55 mg, 230 μmol, 1.0 eq.), CuI (22 mg, 115 μmol, 0.5 eq.), and Cs2CO3 (150 mg, 460 μmol, 2.0 eq.) in DMF (1 mL) was stirred at 100° C. for 16 hours under N2. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-30% EtOAc in PE) and Prep-HPLC to give 5-((6-chloropyridin-3-yl)oxy)-7-ethyl-1,3-dimethylquinolin-2(1H)-one (20 mg, 26% yield).
LC-MS (ESI): mass calcd. for C18H17ClN2O2, 328.1; m/z found, 329 [M+H]+.
A mixture of 5-((6-chloropyridin-3-yl)oxy)-7-ethyl-1,3-dimethylquinolin-2(1H)-one (20 mg, 60.8 μmol, 1.0 eq.), methyl 3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate (34 mg, 122 μmol, 2.0 eq.; Example A35, Step A), Pd(dppf)Cl2 (5 mg, 6.08 μmol, 0.1 eq.), and K3PO4 (39 mg, 182 μmol, 3.0 eq.) in 1,4-dioxane (1 mL) and H2O(0.1 mL) was stirred at 100° C. for 1 hour under N2. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc in PE) to give methyl 5-((7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)oxy)-5′-methyl-[2,3′-bipyridine]-6′-carboxylate (20 mg, 74% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C26H25N3O4, 443.2; m/z found, 444 [M+H]+.
To a solution of methyl 5-((7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)oxy)-5′-methyl-[2,3′-bipyridine]-6′-carboxylate (20 mg, 45.1 μmol, 1.0 eq.) in THF (1 mL) and H2O(1 mL) was added LiGH (2 mg, 90.2 μmol, 2.0 eq.). The mixture was stirred at 25° C. for 1 hour under N2. The solvent was removed under reduced pressure to give 5-((7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)oxy)-5′-methyl-[2,3′-bipyridine]-6′-carboxylic acid (18.0 mg, crude, Li salt) as a yellow solid.
LC-MS (ESI): mass calcd. for C25H23N3O4, 429.2; m/z found, 430 [M+H]+.
A mixture of 5-((7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)oxy)-5′-methyl-[2,3′-bipyridine]-6′-carboxylic acid (10 mg, 23.3 μmol, 1 eq.), 3-((3-(3-aminoprop-1-yn-1-yl)phenyl)amino)piperidine-2,6-dione (9 mg, 34.9 μmol, 1.5 eq.; Intermediate 6), HATU (18 mg, 46.6 μmol, 2.0 eq.), and DIPEA (8.1 μL, 46.6 μmol, 2 eq.) in DMF (3 mL) was stirred at 0° C. for 30 mins under N2. The resulting solution was diluted with 20 mL of water and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine (20 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by Prep-HPLC to give N-(3-(3-((2,6-dioxopiperidin-3-yl)amino)phenyl)prop-2-yn-1-yl)-5-((7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)oxy)-5′-methyl-[2,3′-bipyridine]-6′-carboxamide (4.2 mg, 26% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C39H36N6O5, 668.3; m/z found, 669 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.77 (s, 1H), 9.17-9.05 (m, 2H), 8.59 (d, J=2.9 Hz, 1H), 8.38 (d, J=1.5 Hz, 1H), 8.17 (d, J=8.7 Hz, 1H), 7.91 (s, 1H), 7.56 (dd, J=8.8, 2.9 Hz, 1H), 7.23 (s, 1H), 7.06 (t, J=7.9 Hz, 1H), 6.79 (s, 1H), 6.74-6.66 (m, 2H), 6.63 (d, J=7.5 Hz, 1H), 6.00 (s, 1H), 4.43-4.34 (m, 1H), 4.34-4.25 (m, 2H), 3.69 (s, 3H), 2.79-2.68 (m, 3H), 2.66 (s, 3H), 2.60-2.53 (m, 1H), 2.16-2.05 (m, 4H), 1.94-1.81 (m, 1H), 1.21 (t, J=7.6 Hz, 3H).
N-(3-(3-((2,6-Dioxopiperidin-3-yl)amino)phenyl)prop-2-yn-1-yl)-5-(4-((7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)(methyl)amino)phenyl)-3-methylpicolinamide was prepared from 4-bromo-N-methylaniline according to the procedures described in Example B11, Steps C & E-G. The title compound (18.2 mg, 18% yield over 4 steps) was obtained as a yellow solid.
LC-MS (ESI): mass calcd. for C41H4N6O4, 680.3; m/z found, 681.2 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.77 (s, 1H), 9.00 (t, J=5.9 Hz, 1H), 8.68 (d, J=1.9 Hz, 1H), 7.93 (d, J=1.7 Hz, 1H), 7.63 (d, J=8.9 Hz, 2H), 7.56 (s, 1H), 7.35 (s, 1H), 7.09-7.01 (m, 2H), 6.74-6.66 (m, 2H), 6.66-6.60 (m, 3H), 6.00 (d, J=7.9 Hz, 1H), 4.45-4.33 (m, 1H), 4.28 (d, J=5.9 Hz, 2H), 3.70 (s, 3H), 3.34 (s, 3H), 2.79-2.70 (m, 3H), 2.64-2.60 (m, 3H), 2.59-2.53 (m, 1H), 2.11-2.04 (m, 4H), 1.91-1.79 (m, 1H), 1.25 (d, J=7.7 Hz, 3H).
N-(3-(3-((2,6-Dioxopiperidin-3-yl)amino)phenyl)prop-2-yn-1-yl)-5-(4-((7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)(methyl)amino)-2-fluorophenyl)-3-methylpicolinamide was prepared from 4-bromo-3-fluoroaniline according to the procedures described in Example B11, Steps A-G. The title compound (11.2 mg, 2% yield over 7 steps) was obtained as a yellow solid.
LC-MS (ESI): mass calcd. for C41H39FN6O4, 698.3; m/z found, 699.4 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.78 (s, 1H), 9.05 (t, J=5.8 Hz, 1H), 8.57 (s, 1H), 7.84 (s, 1H), 7.55 (s, 1H), 7.44-7.37 (m, 2H), 7.08-7.04 (m, 2H), 6.73-6.68 (m, 2H), 6.63 (d, J=7.5 Hz, 1H), 6.50 (d, J=14.5 Hz, 1H), 6.36 (d, J=8.6 Hz, 1H), 6.00 (d, J=7.8 Hz, 1H), 4.40-4.35 (m, 1H), 4.29 (d, J=5.7 Hz, 2H), 3.71 (s, 3H), 3.35 (s, 3H), 2.80-2.73 (m, 3H), 2.61 (s, 3H), 2.59-2.54 (m, 1H), 2.11-2.06 (m, 4H), 1.92-1.83 (m, 1H), 1.26 (t, J=7.5 Hz, 3H).
To a solution of 6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoindolin-1-one (2 g, 7.7 mmol, 1.0 eq.) in DMF (30 mL) was added Cs2CO3 (7.5 g, 23.2 mmol, 3.0 eq.) and (3-bromoprop-1-yn-1-yl)trimethylsilane (2.2 g, 11.6 mmol, 1.5 eq.). Then the reaction was stirred at 80° C. for 3 hours. The reaction was monitored by LCMS. The resulting solution was diluted with 50 ml of water, then extracted with EA (3×200 mL) and washed with brine. The combined organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was purified on a silica gel chromatography (100-200 mesh silica gel, 0-80% EtOAc in PE) to give 2-(prop-2-yn-1-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoindolin-1-one (450 mg, yield 20%) as a yellow solid.
LC-MS (ESI): mass calcd. for C17H20BNO3, 297.2; m/z found, 298.2 [M+H]+.
To a solution of 2-(prop-2-yn-1-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoindolin-1-one (200 mg, 673 μmol, 1.0 eq.) in DMF (5 mL) was added Pd(PPh3)2C12 (47 mg, 67 μmol, 0.1 eq.), 3-(5-iodobenzofuran-3-yl)piperidine-2,6-dione (239 mg, 673 μmol, 1 eq.), CuI (26 mg, 135 μmol, 0.2 eq.) and TEA (2 mL). Then the reaction was stirred at 60° C. for 3 hours. The reaction was monitored by LCMS. The resulting solution was diluted with 50 ml of water, then extracted with EA (3×50 mL) and washed with brine. The combined organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was purified on a silica gel chromatography (100-200 mesh silica gel, 0-80% EtOAc in PE) to give 2-(prop-2-yn-1-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoindolin-1-one (450 mg, yield 20%) as a yellow solid.
LC-MS (ESI): mass calcd. for C30H29BN2O6, 524.2; m/z found, 525.2 [M+H]+.
To a solution of 3-(5-(3-(1-oxo-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoindolin-2-yl)prop-1-yn-1-yl)benzofuran-3-yl)piperidine-2,6-dione (12 mg, 24 μmol, 1.0 eq.)in 1,4-Dioxane (3 mL) was added 5-(2-chloro-7,8-dihydropyrido[3,2-d]pyrimidin-5(6H)-yl)-1,3-dimethyl-7-(tetrahydro-2H-pyran-4-yl)quinolin-2(1H)-one (10 mg, 24 μmol, 1.0 eq.), Pd(dtbpf)Cl2 (2 mg, 2 μmol, 0.1 eq.), CsF (11 mg, 71 μmol, 3.0 eq.) at room temperature. Then the reaction was stirred at 100° C. for 3 hours. The resulting solution was diluted with 20 mL of water and extracted with EtOAc (3×30 mL). The combined organic layers were washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash prep-HPLC (Triant C18 5 m column, 0-60% MeCN in H2O with 0.1% FA) to afford N-(3-(3-((2,6-dioxopiperidin-3-yl)amino)-2-fluorophenyl)prop-2-yn-1-yl)-5-(8-(7-ethyl-1,3-dimethyl-2-oxo-1,2-dihydroquinolin-5-yl)isoquinolin-3-yl)picolinamide (13 mg, 27% yield) as a yellow solid.
LC-MS (ESI): mass calcd. for C47H42N6O6, 786.3; m/z found, 787.4 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.88 (s, 1H), 8.51 (s, 1H), 8.48-8.44 (m, 1H), 7.96 (s, 1H), 7.78-7.76 (m, 1H), 7.72 (s, 1H), 7.69 (d, J=8.1 Hz, 1H), 7.59 (d, J=8.5 Hz, 1H), 7.45-7.40 (m, 2H), 7.38 (s, 1H), 7.27 (s, 1H), 4.67 (d, J=2.7 Hz, 4H), 4.14 (dd, J=12.2, 4.8 Hz, 1H), 3.99-3.94 (m, 2H), 3.72 (s, 3H), 3.70-3.66 (m, 2H), 3.44-3.41 (m, 2H), 3.15-3.09 (m, 2H), 2.99-2.93 (m, 1H), 2.75-2.68 (m, 1H), 2.59-2.56 (m, 1H), 2.55-2.52 (m, 1H), 2.38-2.31 (m, 2H), 2.24-2.19 (m, 1H), 2.10 (s, 3H), 1.82-1.75 (m, 4H).
A mixture of 4,6-dichloropyridin-2-amine (13.1 g, 80 mmol, 1.0 eq.), Boc2O(20.7 g, 96 mmol, 1.2 eq.), DMAP (488 mg, 4.0 mmol, 0.05 eq.), and TEA (22.2 mL, 160 mmol, 2.0 eq.) in DCM (130 mL) was stirred at 25° C. for 16 hours. The resulting solution was diluted with 300 mL of water and extracted with DCM (100 mL×3). The combined organic layers were washed with brine (100 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to give tert-butyl (4,6-dichloropyridin-2-yl)carbamate (18 g, 77% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C10H12Cl2N2O2, 262.0; m/z found, 164.0 [M-56+H]+.
To a solution of tert-butyl (4,6-dichloropyridin-2-yl)carbamate (14 g, 53.2 mmol, 1.0 eq.) in THF (100 mL) was added n-BuLi (53.2 mL, 133 mmol, 2.5 eq., 2.5 M in hexane) slowly at −65° C. under N2. The mixture was stirred at this temperature for 30 mins. Then, DMF (12.3 mL, 159.6 mmol, 3.0 eq.) was added to the mixture at −65° C. The mixture was stirred at −65° C. for 2 hours under N2. The resulting solution was quenched with 100 mL of aq. HCl (1 M in H2O) and extracted with EtOAc (100 mL×3). The combined organic layers were washed with brine (100 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-10% EtOAc in PE) to give tert-butyl (4,6-dichloro-3-formylpyridin-2-yl)carbamate (9.6 g, 62% yield) as a white solid. LC-MS (ESI): mass calcd. for C11H12Cl2N2O3, 290.0; m/z found, 291.0 [M+H]+.
1H NMR (400 MHz, DMSO-d6) δ 10.64 (s, 1H), 10.11 (s, 1H), 7.63 (s, 1H), 1.46 (s, 9H).
To a solution of tert-butyl (4,6-dichloro-3-formylpyridin-2-yl)carbamate (2.6 g, 8.93 mmol, 1.0 eq.) in DCM (15 mL) was added HCl (10 mL, 4 M in dioxane). The mixture was stirred at 25° C. for 1 hour. The reaction mixture was then concentrated under reduced pressure.
The residue was diluted with sat. NaHCO3 (60 mL) and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, and concentrated under reduced pressure to give 2-amino-4,6-dichloronicotinaldehyde (1.5 g, 88% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C6H4C12N2O, 190.0; m/z found, 191.0 [M+H]+.
To a solution of 2-amino-4,6-dichloronicotinaldehyde (1.5 g, 7.8 mmol, 1.0 eq.), DMAP (958 mg, 7.8 mmol, 1.0 eq.), and TEA (3.2 mL, 23.4 mmol, 3.0 eq.) in DMF (20 mL) was added propionyl chloride (4.84 g, 2 eq., 52.4 mmol) slowly at 0° C. The mixture was warmed to 90° C. and stirred for 16 hours under N2. The reaction mixture was then cooled and concentrated under reduced pressure. The residue was diluted with water (60 mL) and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-40% EtOAc in PE) to give 5,7-dichloro-3-methyl-1,8-naphthyridin-2(1H)-one (625 mg, 35% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C9H6Cl2N2O, 228.0; m/z found, 229.0 [M+H]+. 1H NMR (400 MHz, DMSO-d6) δ 12.61 (s, 1H), 7.93 (d, J=1.4 Hz, 1H), 7.60 (s, 1H), 2.15 (d, J=1.3 Hz, 3H).
To a solution of 5,7-dichloro-3-methyl-1,8-naphthyridin-2(1H)-one (3.5 g, 15.3 mmol, 1.0 eq.) in DMF (35 mL) was added NaH (1.2 g, 30.6 mmol, 2.0 eq. wt=60%) at 0° C. The mixture was stirred at this temperature for 30 mins under N2. Then, Mel (1.5 mL, 22.9 mmol, 1.5 eq.) was added to the mixture slowly at 0° C. The reaction mixture was stirred at 25° C. for 1 hour under N2. The reaction was quenched with sat. NH4Cl (100 mL) and extracted with EtOAc (100 mL×3). The combined organic layers were washed with brine (100 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-40% EtOAc in PE) to give 5,7-dichloro-1,3-dimethyl-1,8-naphthyridin-2(1H)-one (3.3 g, 94% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C10H8Cl2N2O, 242.0; m/z found, 243.0 [M+H]+. 1H NMR (400 MHz, DMSO-d6) δ 7.99 (d, J=1.5 Hz, 1H), 7.70 (s, 1H), 3.64 (s, 3H), 2.20 (d, J=1.2 Hz, 3H).
To a solution of 5,7-dichloro-1,3-dimethyl-1,8-naphthyridin-2(1H)-one (500 mg, 2.06 mmol, 1.0 eq.) in 1,4-Dioxane (5 mL) and H2O(1 mL) was added 2-(3,6-dihydro-2H-pyran-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (454 mg, 2.16 mmol, 1.05 eq.), K2CO3 (853 mg, 6.17 mmol, 3.0 eq.) and Pd(dppf)Cl2 (151 mg, 206 μmol, 0.1 eq.). The reaction mixture was stirred at 50° C. for 4 hours. The resulting solution was diluted with 20 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by silica gel chromatography (100-200 mesh silica gel, 0-80% EtOAc in PE) to give 5-chloro-7-(3,6-dihydro-2H-pyran-4-yl)-1,3-dimethyl-1,8-naphthyridin-2(1H)-one (290 mg, 49% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C15H15ClN2O2, 290.0; m/z found, 291 [M+H]+.
To a solution of 5-chloro-7-(3,6-dihydro-2H-pyran-4-yl)-1,3-dimethyl-1,8-naphthyridin-2(1H)-one (291 mg, 1.0 mmol, 1.0 eq.) in TFE (5 mL) was added Wilkinson's catalyst (277 mg, 0.3 mmol, 0.3 eq.) at 25° C. The mixture was stirred at 60° C. for 18 hours under H2 atmosphere. The resulting solution was diluted with 50 ml of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (20 mL), dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0-80% EtOAc in PE) to give 5-chloro-1,3-dimethyl-7-(tetrahydro-2H-pyran-4-yl)-1,8-naphthyridin-2(1H)-one (218 mg, 75% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C15H17ClN2O2, 292.0; m/z found, 293 [M+H]+.
To a mixture of 5-chloro-1,3-dimethyl-7-(tetrahydro-2H-pyran-4-yl)-1,8-naphthyridin-2(1H)-one (80 mg, 273 μmol, 1.0 eq.), Ru-Phos Pd G1 (20 mg, 27.3 μmol, 1.0 eq.) and Ru-Phos ((13 mg, 27.3 μmol, 0.1 eq.)), Cs2CO3 (267 mg, 820 μmol, 3.0 eq.) in 1,4-Dioxane (5 mL) was added methyl 5-(5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinate (111 mg, 410 μmol, 1.5 eq.) at 25° C. The mixture was stirred at 100° C. for 2.5 hours under N2 atmosphere. The resulting solution was diluted with 50 ml of water and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine (20 mL), dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was purified by flash chromatography (100-200 mesh silica gel, 0-100% EtOAc in PE) to afford methyl 5-(5-(6,8-dimethyl-7-oxo-2-(tetrahydro-2H-pyran-4-yl)-7,8-dihydro-1,8-naphthyridin-4-yl)-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinate (80 mg, 56% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C29H30N6O4, 526.2; m/z found, 527 [M+H]+.
To a solution of methyl 5-(5-(6,8-dimethyl-7-oxo-2-(tetrahydro-2H-pyran-4-yl)-7,8-dihydro-1,8-naphthyridin-4-yl)-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinate (80 mg, 152 μmol, 1.0 eq.) in THF (2 mL) and water (1 mL) was added LiGH (13 mg, 304 μmol, 2.0 eq.) at 25° C. The mixture was stirred at 25° C. for 1 hour. The reaction was concentrated under reduced pressure to afford lithium 5-(5-(6,8-dimethyl-7-oxo-2-(tetrahydro-2H-pyran-4-yl)-7,8-dihydro-1,8-naphthyridin-4-yl)-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinate (80 mg, crude) as a yellow solid. LC-MS (ESI): mass calcd. for C28H27LiN6O4, 518.2; m/z found, 513 [M+H]+.
To a solution of lithium 5-(5-(6,8-dimethyl-7-oxo-2-(tetrahydro-2H-pyran-4-yl)-7,8-dihydro-1,8-naphthyridin-4-yl)-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinate (40 mg, 78.0 μmol, 1.0 eq.), HATU (60 mg, 156 μmol, 2.0 eq.) and 3-(2-(3-aminoprop-1-yn-1-yl)benzofuran-4-yl)piperidine-2,6-dione (29 mg, 101 μmol, 1.3 eq.) in DMF (3 mL) was added DIEA (41 μL, 234 μmol, 3.0 eq.) at room temperature. The mixture was stirred at 25° C. for 20 mins under N2 atmosphere. The resulting solution was diluted with 10 ml of water and extracted with EtOAc (10 mL×3). The combined organic layers were washed with brine (10 mL), dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was purified by Prep-HPLC to afford 5-(5-(6,8-dimethyl-7-oxo-2-(tetrahydro-2H-pyran-4-yl)-7,8-dihydro-1,8-naphthyridin-4-yl)-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)-N-(3-(4-(2,6-dioxopiperidin-3-yl)benzofuran-2-yl)prop-2-yn-1-yl)picolinamide (20 mg, 33% yield) as a yellow solid. LC-MS (ESI): mass calcd. for C44H40N8O6, 776.2; m/z found, 777 [M+H]+. 1H NMR (400 MHz, DMSO-d6) 6 10.88 (s, 1H), 9.47-9.38 (m, 2H), 8.70 (dd, J=8.2, 2.0 Hz, 1H), 8.16 (d, J=8.3 Hz, 1H), 7.80 (s, 1H), 7.74 (s, 1H), 7.46 (d, J=8.3 Hz, 1H), 7.36-7.32 (m, 1H), 7.28 (d, J=9.2 Hz, 2H), 7.12 (d, J=7.4 Hz, 1H), 4.43 (d, J=5.8 Hz, 2H), 4.21 (dd, J=12.1, 4.9 Hz, 1H), 4.01-3.94 (m, 2H), 3.76 (s, 3H), 3.72 (s, 2H), 3.47-3.42 (m, 2H), 3.14-3.08 (m, 2H), 3.06-2.99 (m, 1H), 2.74-2.66 (m, 1H), 2.57-2.53 (m, 1H), 2.37-2.31 (m, 1H), 2.30-2.16 (m, 2H), 2.11 (s, 3H), 2.06-2.00 (m, 1H), 1.89-1.80 (m, 4H).
A mixture of 7-bromo-5-methoxy-1,3-dimethylquinolin-2(1H)-one (WO2022053967, 1.5 g, 5.3 mmol, 1.0 eq.), 2-(3,6-dihydro-2H-pyran-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (3.4 g, 15.9 mmol, 3.0 eq.), Pd(dppf)Cl2 (583 mg, 797 μmol, 0.15 eq.) and Na2CO3 (1.7 g, 15.9 mmol, 3.0 eq.) in 1,4-Dioxane (20 mL) and H2O(2 mL) was stirred at 100° C. for 3 hours under N2. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-50% EtOAc and 10% DCM in PE) to give 7-(3,6-dihydro-2H-pyran-4-yl)-5-methoxy-1,3-dimethylquinolin-2(1H)-one (1.5 g, yield 95%) as a yellow solid. LC-MS (ESI): mass calcd. for C17H19NO3, 285.14; m/z found, 286 [M+H]+.
To a solution of 7-(3,6-dihydro-2H-pyran-4-yl)-5-methoxy-1,3-dimethylquinolin-2(1H)-one (1.3 g, 4.6 mmol, 1.0 eq.) in EtOH (50 mL) and THF (25 mL) was added Pd/C (Palladium 10% on Carbon) at 25° C. The mixture was stirred at 50° C. for 5 hours under H2. The resulting solution was filtered by celite pad and concentrated under reduced pressure.to give 5-methoxy-1,3-dimethyl-7-(tetrahydro-2H-pyran-4-yl)quinolin-2(1H)-one (1.2 g, yield 92%) as a yellow solid. LC-MS (ESI): mass calcd. for C17H21NO3, 287.15; m/z found, 288 [M+H]+
A mixture of 5-methoxy-1,3-dimethyl-7-(tetrahydro-2H-pyran-4-yl)quinolin-2(1H)-one (1.4 g, 4.9 mmol, 1.0 eq.) and EtSNa (410 mg, 4.9 mmol, 1.0 eq.) in DMF (30 mL) was stirred at 110° C. for 16 hour under N2. The resulting solution was removed under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-80% EtOAc in PE) to give 5-hydroxy-1,3-dimethyl-7-(tetrahydro-2H-pyran-4-yl)quinolin-2(1H)-one (900 mg, yield 67%) as a yellow solid. LC-MS (ESI): mass calcd. for C16H19NO3, 273.14; m/z found, 274 [M+H]+.
To a solution of 5-hydroxy-1,3-dimethyl-7-(tetrahydro-2H-pyran-4-yl)quinolin-2(1H)-one (879 mg, 3.2 mmol, 1.0 eq.), Pyridine (1.0 mL, 12.8 mmol, 4.0 eq.) in DCM (15 mL) was added Tf2O (1.8 g, 6.4 mmol, 2.0 eq.) at 0° C. The mixture was stirred at 0° C. for 2 hours under N2. The resulting solution was diluted with 50 mL of water and extracted with EtOAc (50 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-100% EtOAc in PE) to give 1,3-dimethyl-2-oxo-7-(tetrahydro-2H-pyran-4-yl)-1,2-dihydroquinolin-5-yl trifluoromethanesulfonate (900 mg, yield 69%) as a white solid. LC-MS (ESI): mass calcd. for C17H18F3NO5S, 405.09; m/z found, 406 [M+H]+.
To a solution of 2,4-dichloropyrimidin-5-amine (50 g, 304 mmol, 1.0 eq.) in 1,4-Dioxane (400 mL) and H2O(40 mL) was added ethyl (E)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)acrylate (84.5 g, 376 mmol, 1.2 eq.), K2CO3 (84 g, 608 mmol, 2.0 eq.) and X-Phos Pd G2 (10 g, 15.2 mmol, 0.05 eq.). The reaction mixture was stirred at 92° C. for 16 hours. The resulting solution was diluted with 300 ml of water and extracted with EtOAc (300 mL×3). The combined organic layers were washed with brine (500 mL×3), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by silica gel chromatography (100-200 mesh silica gel, 0-20% EtOAc in PE) to give ethyl (E)-3-(5-amino-2-chloropyrimidin-4-yl) acrylate (15 g, 65.8 mmol, 22%) as a yellow solid. LC-MS (ESI): mass calcd. for C9H10ClN3O2, 227.6; m/z found, 228.3 [M+H]+.
To a solution of ethyl (E)-3-(5-amino-2-chloropyrimidin-4-yl) acrylate (15 g, 1, 65.9 mmol, 1.0 eq.) in EtOH (200 mL) was added Wilkinson's catalyst (12 g, 13.18 mmol, 0.2 eq.).
The reaction mixture was stirred at 60° C. for 10 hours. The resulting solution was diluted with 200 ml of water and extracted with EtOAc (200 mL×3). The combined organic layers were washed with brine (200 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by silica gel chromatography (100-200 mesh silica gel, 0-50% EtOAc in PE) to give 2-chloro-7,8-dihydropyrido[3,2-d]pyrimidin-6(5H)-one (9 g, 49 mmol, 75%) as a yellow solid. LC-MS (ESI): mass calcd. for C7H6ClN30, 183.6; m/z found, 184.5 [M+H]+.
To a solution of 2-chloro-7,8-dihydropyrido[3,2-d]pyrimidin-6(5H)-one (9 g, 49.0 mmol, 1.0 eq.) in THF (200 mL) was added BH3.THF (58.8 mL, 58.8 mmoL, 1.2 eq, 1.0 M in THF). The reaction mixture was stirred at 60° C. for 1 hour. The resulting solution was diluted with 20 ml of water and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine (60 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by silica gel chromatography (100-200 mesh silica gel, 0-50% EtOAc in PE) to give the product 2-chloro-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidine (3.5 g, 16.5 mmol, 43%) as a yellow solid. LC-MS (ESI): mass calcd. for C7H8ClN3,169.6; m/z found, 170.4 [M+H]+.
A mixture of 2-chloro-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidine (200 mg, 1.2 mmol, 1 eq.), Pd(dtbpf)Cl2 (154 mg, 236 μmol 0.2 eq.), methyl 3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate (654 mg, 2.3 mmol, 2 eq.) and K3PO4 (751 mg, 3.5 mmol, 3 eq.) in 1,4-Dioxane (8 mL) and water (0.4 mL) was stirred at 100° C. for 2 hours under N2. The resulting solution was diluted with 30 mL of water and extracted with EtOAc (30 mL×3). The combined organic layers were washed with brine (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-85% EtOAc in PE) to give methyl 5-(5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinate (200 mg, yield 60%) as a yellow solid.. LC-MS (ESI): mass calcd. for C14H14N4O2, 270.11; m/z found, 271 [M+H]+.
A mixture of methyl 5-(5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinate (180 mg, 666 μmol, 1 eq.), 1,3-dimethyl-2-oxo-7-(tetrahydro-2H-pyran-4-yl)-1,2-dihydroquinolin-5-yl trifluoromethanesulfonate (297 mg, 733 μmol, 1.1 eq.), X-Phos (64 mg, 133 μmol, 0.2 eq.), Pd2(dba)3 (122 mg 133 μmol, 0.2 eq.) and Cs2CO3 (649 mg, 2.0 mmol, 3 eq.) in Tol (5 mL). The mixture was stirred at 100° C. for 6 hours under N2. The resulting solution was diluted with 20 mL of water and extracted with EtOAc (20 mL×3). The combined organic layers were washed with brine (100 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100-200 mesh silica gel, 0-85% EtOAc in PE) to give methyl 5-(5-(1,3-dimethyl-2-oxo-7-(tetrahydro-2H-pyran-4-yl)-1,2-dihydroquinolin-5-yl)-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinate (50 mg, yield 14%) as a yellow solid. LC-MS (ESI): mass calcd. for C30H31N5O4, 525.24; m/z found, 526 [M+H]+.
To a solution of methyl 5-(5-(1,3-dimethyl-2-oxo-7-(tetrahydro-2H-pyran-4-yl)-1,2-dihydroquinolin-5-yl)-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinate (50 mg, 95 μmol, 1.0 eq.) in THF (3 mL) and H2O(3 mL) was added LiGH (4 mg, 190 μmol, 1.0 eq.) at room temperature. The mixture was stirred at room temperature for 1 hour. Then the mixture was concentrated under reduced pressure to give lithium 5-(5-(1,3-dimethyl-2-oxo-7-(tetrahydro-2H-pyran-4-yl)-1,2-dihydroquinolin-5-yl)-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinate (50 mg, crude) as a yellow solid. LC-MS (ESI): mass calcd. for C29H29N5O4, 517.2; m/z found, 512.2 [M+H]+.
To a solution of 5-(5-(1,3-dimethyl-2-oxo-7-(tetrahydro-2H-pyran-4-yl)-1,2-dihydroquinolin-5-yl)-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)picolinic acid (150 mg, 1 Eq, 293 μmol),3-(5-(3-aminoprop-1-yn-1-yl)benzofuran-3-yl)piperidine-2,6-dione (149 mg, 1.8 Eq, 528 μmol) and HATU (279 mg, 2.5 Eq, 733 μmol) in DMF (10.00 mL) was added DIPEA (113 mg, 3 Eq, 880 μmol)at 0° C. The mixture was stirred at 0° C. for 30 min. LCMS showed the reaction was completed. The reaction was washed with H2O, extracted with EA. The organic layer was dried over any. Na2SO4, concentrated in vacuum to give crude product which was purified by HPLC to give the desired product 5-(5-(1,3-dimethyl-2-oxo-7-(tetrahydro-2H-pyran-4-yl)-1,2-dihydroquinolin-5-yl)-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-yl)-N-(3-(3-(2,6-dioxopiperidin-3-yl)benzofuran-5-yl)prop-2-yn-1-yl)picolinamide (88.0 mg, 113 μmol, 38.7%) as a yellow solid. 1H NMR (400 MHz, DMSO) δ 10.88 (s, 1H), 9.37 (d, J=1.8 Hz, 1H), 9.27 (t, J=6.0 Hz, 1H), 8.66 (dd, J=8.2, 2.0 Hz, 1H), 8.13 (d, J=8.2 Hz, 1H), 7.95 (s, 1H), 7.70 (s, 2H), 7.57 (d, J=8.5 Hz, 1H), 7.42 (s, 1H), 7.40 (s, 1H), 7.36 (dd, J=8.5, 1.3 Hz, 1H), 7.28 (s, 1H), 4.35 (d, J=5.8 Hz, 2H), 4.15 (dd, J=12.3, 4.8 Hz, 1H), 3.97 (d, J=11.4 Hz, 2H), 3.76-3.68 (m, 4H), 3.62-3.56 (m, 1H), 3.45 (td, J=11.3, 5.5 Hz, 2H), 3.13 (dd, J=8.9, 5.2 Hz, 2H), 2.97 (dt, J=10.4, 5.8 Hz, 1H), 2.75-2.67 (m, 1H), 2.59-2.53 (m, 1H), 2.38-2.28 (m, 2H), 2.25-2.17 (m, 1H), 2.10 (s, 3H), 2.07-1.96 (m, 1H), 1.82-1.73 (m, 4H).
The compounds in Table 4 are synthesized via the route with amide formation described in Scheme 9; the precursors for amide coupling are synthesized via the routes listed in Scheme 1-8.
1H-NMR
1HNMR (400 MHZ, DMSO-d6) δ 10.89 (s, 1H), 9.32-9.26
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.08 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.30 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.87 (s, 1H), 9.44-9.35
1H NMR (400 MHZ, DMSO-d6) δ 10.89 (s, 1H), 8.93-8.87
1H NMR (400 MHZ, DMSO-d6) δ 10.96 (s, 1H), 9.45 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.89 (s, 1H), 9.20 (d, J =
1H NMR (400 MHZ, DMSO-d4) 8 10.88 (s, 1H), 9.42-9.37
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.47-9.36
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.47-9.32
1H NMR (400 MHz, DMSO-d6) δ 10.88 (s, 1H), 9.45-9.38
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.32 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.95 (s, 1H), 9.45 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.37-9.29
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.44 (s,
1H NMR (400 MHZ, DMSO-d6) δ 10.96 (s, 1H), 9.50-9.36
1H NMR (400 MHZ, DMSO-d6) δ 10.89 (s, 1H), 9.33 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.43-9.35
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.51-9.25
1H NMR (400 MHz, DMSO-d6) δ 10.88 (s, 1H), 9.44-9.34
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.48 (t, J =
1H NMR (400 MHz, DMSO-d6) δ 10.88 (s, 1H), 9.18 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.89 (s, 1H), 9.28-9.05
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.45-9.34
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 8.51 (s,
1H NMR (400 MHz, DMSO-d6) δ 10.88 (s, 1H), 9.14-9.09
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.40 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.87 (s, 1H), 9.46-9.37
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.45-9.39
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.46-9.39
1H NMR (400 MHZ, DMSO-d6) δ 10.89 (s, 1H), 8.90 (dd,
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.45 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.40-
1H NMR (400 MHZ, DMSO-d6) δ 10.87 (s, 1H), 9.37 (s,
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.37 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.37 (s,
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.42 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.77 (s, 1H), 9.35 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.23 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.33-9.25
1H NMR (400 MHZ, DMSO-d6) δ 10.94 (s, 1H), 9.42 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.39 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.45-9.38
1H NMR (400 MHZ, DMSO-d6) δ 10.87 (s, 1H), 9.31-9.16
1H NMR (400 MHZ, DMSO-d6) δ 10.87 (s, 1H), 9.36-9.30
1H NMR (400 MHZ, DMSO-d6) δ 10.87 (s, 1H), 9.38 (s,
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.50-9.44
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.41 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.42-9.39
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.38 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.40 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.21 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.40 (s,
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.40 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.49-9.43
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.40 (s,
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.24 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.87 (s, 1H), 9.37 (s,
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.38 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.38 (s,
1H NMR (400 MHZ, DMSO-d6) δ 10.91 (s, 1H), 9.43-9.34
1H NMR (400 MHZ, DMSO-d6) δ 10.87 (s, 1H), 9.44-9.31
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.09 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.96 (s, 1H), 9.49 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.92 (s, 1H), 9.37 (s,
1H NMR (400 MHz, DMSO-d6) δ 10.88 (s, 1H), 9.39 (d, J =
1H NMR (400 MHZ, DMSO-d6) 10.88 (s, 1H), 9.54 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.89 (s, 1H), 9.47 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.26 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.94 (s, 1H), 9.41 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.24 (t, J =
1H NMR (400 MHz, DMSO-d6) δ 10.88 (s, 1H), 9.47 (s,
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.47 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.96 (s, 1H), 9.43 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.53-9.41
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.44 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.83 (s, 1H), 9.50-9.32
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.40 (t, J =
1H NMR(400 MHZ, DMSO-d6) δ 10.91 (s, 1H), 9.50 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.24 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.47 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.47 (s,
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.26 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.41 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.87 (s, 1H), 9.37 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.95 (s, 1H), 9.43 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.84 (d, J = 1.5 Hz, 1H),
1H NMR(400 MHZ, DMSO-d6) δ 11.07 (s, 1H), 9.37 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.26-9.19
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.36 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 11.07 (s, 1H), 9.49 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.87 (s, 1H), 9.27-9.19
1H NMR (400 MHZ, DMSO-d6) δ 10.87 (s, 1H), 9.23 (t, J =
1H NMR (400 MHZ, DMSO-d4) 8 10.88 (s, 1H), 9.41-9.31
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.40 (d, J =
1HNMR(400 MHZ, DMSO-d6) δ 10.91-10.87 (m, 1H),
1HNMR (400 MHZ, DMSO-d6) δ 10.87 (s, 1H), 9.40-9.33
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.48-9.38
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.38 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.96 (s, 1H), 9.46-9.39
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.40 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.37 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.24 (s,
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.31 (dd,
1HNMR(400 MHZ, DMSO-d6) δ 10.87 (s, 1H), 9.37 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.41 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.34-9.03
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.40 (d, J =
1H NMR (400 MHz, DMSO-d6) δ 10.88 (s, 1H), 9.21 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.40 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.46 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.47 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.87 (s, 1H), 9.21 (s,
1H NMR (400 MHz, DMSO-d6) δ 10.88 (s, 1H), 9.22 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.90 (s, 1H), 10.88 (s,
1H NMR (400 MHZ, DMSO-d6) δ 11.23 (s, 1H), 9.46 (t, J =
1H NMR(400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.39 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.44 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.79 (s, 1H), 9.36-9.28
1H NMR (400 MHZ, DMSO-d6) δ 10.87 (s, 1H), 9.15 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.24 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.96 (s, 1H), 9.45 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.24-9.19
1H NMR (400 MHZ, DMSO-d6) δ 10.89 (s, 1H), 9.18 (s,
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.24 (t, J =
1H NMR (400 MHZ, DMSO-d6) & 10.88 (s, 1H), 9.47 (s,
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.24 (s,
1H NMR (400 MHZ, DMSO-d6) δ 10.91 (s, 1H), 9.41 (t, J =
1H NMR (400 MHz, DMSO-d6) δ 10.88 (s, 1H), 9.23 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.36 (d, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.87 (s, 1H), 9.39-
1H NMR (400 MHz, DMSO-d6) δ 10.78 (s, 1H), 9.10 (s,
1HNMR(400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.24 (t, J =
1H NMR (400 MHz, DMSO-d6) δ 10.88 (s, 1H), 9.39-9.34
1H NMR (400 MHZ, DMSO-d6) δ 10.89 (s, 1H), 9.25-9.20
1H NMR (400 MHZ, DMSO-d6) δ 11.03 (s, 1H), 9.42 (s,
1H NMR (400 MHZ, DMSO-d6) δ 10.95 (s, 1H), 9.43 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.91-10.86 (m, 1H),
1H NMR (400 MHZ, DMSO) 8 10.88 (s, 1H), 9.46-9.38
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.84-
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.40 (d, J =
1H NMR (400 MHz, DMSO-d6) δ 10.89-10.85 (m, 1H),
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.46-
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.48-
1H NMR(400 MHZ, DMSO-d6) δ 10.89 (s, 1H), 9.35-
1H NMR (400 MHz, DMSO-d6) δ 10.90-10.85 (m, 1H),
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.45 (t, J =
1H NMR (400 MHZ, DMSO-d6) & 10.88 (s, 1H), 9.48-
1H NMR (400 MHZ, DMSO-d6) & 10.88 (s, 1H), 9.38 (s,
1H NMR (400 MHZ, DMSO-d6) δ 10.92 (s, 1H), 9.80-
1H NMR(400 MHZ, DMSO-d6) δ 10.87 (s, 1H), 9.40 (t, J =
1H NMR (400 MHZ, DMSO-d6) δ 10.88 (s, 1H), 9.45-
1H NMR (400 MHZ, DMSO-d6) δ 11.74 (s, 1H), 10.88 (s,
The binding potency of the compounds to P300 and CBP were determined using HTRF assay technology. This assay uses full-length p300 expressed in baculovirus expression system with an N-terminal FLAG tag (Active Motif cat #81858). A 4× protein solution was prepared in an assay buffer consisting of 50 mM HEPES pH 7.5, 50 mM NaCl, 0.1% BSA, 1 mM TCEP, and 0.01% Brij-35. A 4× detection solution (MAb Anti FLAG M2-Tb cryptate, Cisbio, Cat #61FG2TLA) was also prepared in the same assay buffer. A fluorescent probe solution consisting of 5-(8-(7-acetyl-3-(tetrahydro-2H-pyran-4-yl)-5,6,7,8-tetrahydroimidazo[1,5-a]pyrazin-1-yl)isoquinolin-3-yl)-N-(2-(2-(2-(3-(3′,6′-dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9′-xanthen]-5-yl)thioureido)ethoxy)ethoxy)ethyl)picolinamide was made at 2× in the same assay buffer. The final concentrations in the assay were 2 nM of p300, 0.4 nM of Anti-FLAG Tb and 30 nM of the fluorescein probe.
Recombinant CREBBP (CBP), residues 1081-1197, was purchased from Active Motif (Cat #31373). This construct consists of an N-terminal His-tag and a C-terminal FLAG-tag, and is expressed in E. coli. Detection solution in this case consisted of Anti-6His Tb cryptate gold (Cisbio, Cat #61HI2TLB). The final concentrations in the assay were 0.2 nM of CBP (1081-1197), 0.4 nM of Anti-6His Tb and 15 nM of 5-(8-(7-acetyl-3-(tetrahydro-2H-pyran-4-yl)-5,6,7,8-tetrahydroimidazo[1,5-a]pyrazin-1-yl)isoquinolin-3-yl)-N-(2-(2-(2-(3-(3′,6′-dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9′-xanthen]-5-yl)thioureido)ethoxy)ethoxy)ethyl)picolinamide as a fluorescent probe.
To a 384-well assay plate (Perkin Elmer, Catalog #6008289) was added 5 μL of 4× p300 using a Dragonfly Discovery liquid dispenser (SPT Labtech). The plate was centrifuged at 211×g for 1 min. The plate was sealed and incubated for 15 min at room temperature. Next, 5 μL of 4× Anti-FLAG antibody was added into the assay plate using the Dragonfly Discovery liquid dispenser. Finally, 10 μL of 2× fluorescent probe was added to the assay plate using the same dispenser. The plate was centrifuged at 211×g for 1 min. The plate was resealed and incubated for 60 min at room temperature. Fluorescence values of the solutions were measured at an excitation wavelength of 495 nm and an emission wavelength of 520 nm using an Envision Multilabel Plate Reader (Perkin Elmer).
The CREBBP/CBP assay was performed in similar conditions to the p300 experiments described above.
p300 and CBP degradation potency and Dmax were determined using in cell western (ICW) assay technology in H1299 cells or HiBit technology in A549 HiBit cells.
H1299 cell line was plated in Poly-L-Lysine coated and tissue culture treated 384-well flat, clear bottom microplate. Cells were plated at a cell density of 1.0×105 cells per well in assay media comprised of RPMI 1640, 10% FBS, and 1% penicillin/streptomycin. Cells were placed in a 37° C., 5% CO2, tissue culture incubator and left to equilibrate overnight. The next day cells were treated with serial dilutions of test compound made up of 10 mM stock solutions in DMSO. 384-well plates containing treated cells were then placed back into a 37° C., 5% CO2, tissue culture incubator and incubated for 16 hrs. After treatment, cell supernatant was removed from each plate and cells were fixed with PBS containing 30% Glyoxal for 1 hour at room temperature. Cell supernatant was then discarded, and cells were permeabilized with PBS containing 0.1% Triton X for 10 minutes at room temperature. Cell supernatant was removed and the cell permeabilization step was repeated two additional times with supernatant removed after each incubation. PBS containing 0.5% SDS was added to each well and incubated for 30 minutes at room temperature. Supernatant was removed and cells were blocked by adding LI-COR Blocking Buffer (LI-COR, catalog number: 927-60001) for 1 hour at room temperature. Cells supernatant was discarded, and LI-COR blocking buffer was added containing 1:1000 dilution of anti-p300 or anti-CBP primary antibody (Cell Signaling: anti-human p300 clone D8Z4E, catalog number 86377S; anti-human CBP clone D6C5, catalog number 7389S). Plates were covered with aluminum foil and incubated overnight at 4° C. Cell supernatant was discarded, and each plate washed 3 times with PBS containing 0.5% Tween with supernatant discarded after each wash. LI—COR blocking buffer was added containing IRDye 800CW goat anti-rabbit IgG secondary antibody (LI-COR; catalog number: 926-32211; 1:1000 dilution) and CellTag 700 stain (LI-COR; catalog number: 926-41090; 1:500 dilution) then incubated for 1 hour at room temperature. Cell supernatant was discarded, and each plate washed 3 times with PBS containing 0.5% Tween with supernatant discarded after each wash. Plates were left to air dry before being scanned with the LI-COR Odyssey CLx instrument.
A549 P300 HiBit and A549 CBP HiBit cells were plated in separate 384-well, TC treated, white-opaque, flat-bottomed microplate. Cells were plated at a cell density of 0.2×104 cells per well in assay media comprised of F-12K, 10% heat inactivated FBS, and 1% penicillin/streptomycin. Assay microplates containing HiBit cells were placed in a 37° C., 5% CO2, tissue culture incubator and left to equilibrate overnight. The next day cells were treated with serial dilutions of test compound made up of 10 mM stock solutions in DMSO. 384-Well plates containing treated cells were then placed back into a 37° C., 5% CO2, tissue culture incubator. Assay microplates containing A549 P300 HiBit cells were incubated for 2 hrs post treatment before P300 destruction was assessed, while microplates containing A549 CBP HiBit cells were incubated for 24 hrs post treatment before CBP destruction was determined. On the day of each assay time point, microplates were removed from the tissue culture incubator and prepared HiBit Lytic detection buffer (Promega, cat #N3O40) was added to each plate. Plates were covered with aluminum foil and incubated for ten minutes at room temperature on an orbital shaker. After incubation, luminescent signal of each plate was measured using the Envision instrument (Perkin Elmer).
Antiproliferative potencies were determined using Cell-Titer Glo (CTG) assay technology in H1299 cells. H1299 wild type, H1299 p300 knock out, and H1299 CBP knock out lines were seeded in 384-well black, tissue culture treated plates at 100 cells per well in assay media comprised of RPMI 1640, 10% FBS, and 1% penicillin/streptomycin. Seeded assay plates were placed in a 37° C., 5% CO2 incubator and left to equilibrate overnight. The next day, cells were treated with serial dilutions of test compound made up of 10 mM stock solutions in DMSO, with Staurosporine used as a positive control. The 384-well plates containing treated cells were then placed back into a 37° C., 5% CO2, tissue culture incubator and incubated for 6 days. In addition, an assay plate containing untreated cells was used as the Day 0 control plate and assessed by addition of Cell Titer-Glo Luminescent Cell Viability reagent (Promega, catalog number: G7573) and signal captured using the Perkin Elmer Envision instrument. On day 6, assay plates were removed from the TC incubator and left to equilibrate at room temperature for 10-15 minutes. Cell Titer-Glo Luminescent Cell Viability reagent (Promega, catalog number: G7573) was added to each well and signal captured using the Perkin Elmer Envision instrument.
All publications and patents mentioned herein are hereby incorporated by reference in their entirety as if each individual publication or patent was specifically and individually indicated to be incorporated by reference. In case of conflict, the present application, including any definitions herein, will control.
As used herein and in the appended claims, the singular forms “a,” “an,” and “the” include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to “an agent” includes a plurality of such agents, and reference to “the cell” includes reference to one or more cells (or to a plurality of cells) and equivalents thereof known to those skilled in the art, and so forth.
While specific embodiments of the subject invention have been discussed, the above specification is illustrative and not restrictive. Many variations of the invention will become apparent to those skilled in the art upon review of this specification and the claims below. The full scope of the invention should be determined by reference to the claims, along with their full scope of equivalents, and the specification, along with such variations.
This application claims the benefit of and priority to U.S. Provisional Application No. 63/579,540, filed Aug. 30, 2023, the contents of which are incorporated herein by reference in their entireties.
Number | Date | Country | |
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63579540 | Aug 2023 | US |