Patent Application
20220370440
The present invention relates to certain 4-substituted 1H-pyrrolo[2,3-b]pyridine compounds of the formula (I) and pharmaceutically acceptable salts thereof. These compounds is useful in the treatment or prevention of a disease or medical condition mediated through certain mutated forms of ErbB receptor, especially of Exon20 Her2 and EGFR mutations.
The present invention relates to certain 4-substituted 1H-pyrrolo[2,3-b]pyridine compounds of the formula (I) and pharmaceutically acceptable salts thereof. These compounds is useful in the treatment or prevention of a disease or medical condition mediated through certain mutated forms of ErbB receptor, especially of Exon20 Her2 and EGFR mutations.
Receptor tyrosine kinases (RTKs) are cell surface receptors that transmit signals from the extracellular environment to control growth, differentiation and survival of cells. Deregulated expression of protein kinases by gene deletion, -mutation or -amplification has been found to be important for tumor initiation and -progression, involving cancer cell proliferation, -survival, -motility and -invasivity as well tumor angiogenesis and chemotherapy resistance. Because of the advanced understanding of their critical role, protein kinases are important targets for novel therapies, especially for cancer (Hananhan et al. Cell 2000, 7, 100(1): 57-70; Blume-Jensen et al., Nature 2001, 17, 411(6835): 355-65).
In humans the receptor tyrosine kinase family ErbB comprises four members: EGFR (Her1), ErbB2 (Her2), ErbB3 (Her3) and ErbB4 (Her4). The binding of a ligand induces conformational change in receptors to form homo- and heterodimerization. The extracellular domain of Her2 is already fixed in a conformation without ligand binding that resembles the other ligand-activated ErbB members and hereby acts as a preferred dimerization partner for other ligand-bound ErbBs. The dimerization of receptors activates the intrinsic kinase activity and hereby yielding to the phosphorylation of its substrates, resulting in activation of multiple downstream pathways within the cell, including the anti-apoptotic/survival PI3K-AKT-mTOR and the mitogenic RAS-RAF-MEK-ERK-MAPK pathways (Chong et al. Nature Med. 2013; 19 (11):1389-1400).
There is strong precedent for the involvement of ErbB kinase family in human cancer as overexpression and/or mutations of ErbB is commonly found in cancers (for example breast, lung, head, neck and bladder). First generation small molecule EGFR inhibitors like Tarceva (Erlotinib) and Iressa (Gefitinib), both binding reversibly to EGFR, are currently first-line therapy for non-small cell lung cancer patients with tumors harbouring EGFR mutations in exon 19 and 21 (like L858R and delE746-A750). Second and third generation small molecule EGFR inhibitors have been designed as irreversible EGFR inhibitors. These compounds (for example Afatinib, HKI-272, CI-1033, EKB-569, WZ-4002, AZ9291, CO-1686) bind irreversibly to EGFR, preferably to cysteine 797.
Approximately 10% of patients with NSCLC in the United States are reported to have tumor-associated EGFR mutations (Lynch et al. N Engl J Med. 2004, 350 (21): 2129-39). The EGFR mutations mostly occur within EGFR Exon 18-21 (Yasuda et al. Sci Transl Med. 2013, 18, 50(216): 216ra177; Leduc et al. Annals of Oncology 2017, 28, 11: 2715-2724; Arcila et al. Mol Cancer Ther. 2013, 12 (2): 220-229). These mutations increase the kinase activity of EGFR, leading to hyperactivation of downstream pro-survival signalling pathways (Pao et al. Nat Rev Cancer 2010, 10: 760-774). EGFR Exon 20 insertions reportedly comprise approximately 4-9.2% of all EGFR mutant lung tumors (Arcila et al. Mol Cancer Ther. 2013, 12 (2): 220-9; Oxnard et al. J Thorac Oncol. 2013, 8(2): 179-184; Yasuda et al. Lancet Oncol. 2012, 13 (1): e23-31). Most EGFR Exon 20 insertions occur in the region encoding amino acids 767 through 774 of exon 20 within the loop that follows the C-helix of the kinase donmain of EGFR. Analysis of patients with tumors harbouring EGFR Exon 20 insertion mutations mostly displayed progressive disease in the course of treatment with Gefitinib, Erlotinib or Afatinib (Yasuda et al. Lancet Oncol. 2012, 13 (1): e23-31; Yasuda et al. Sci Transl Med. 2013, 18, 5(216): 216ra177).
Her2 mutations are reportedly present in ˜2-4% of NSCLC (Buttitta et al. Int J Cancer. 2006, 119: 2586-2591). The most common mutation is an in-frame insertion within Exon 20. In 83% of patients having Her2 associated NSCLC, a four amino acid YVMA insertion mutation occurs at codon 775 in Exon 20 of Her2 (Arcila et al. Clin Cancer Res 2012, 18: 4910-4918). The Her2 Exon 20 insertion results in increased kinase activity and enhanced signalling through downstream pathways, resulting in increased survival, invasiveness, and tumorgenicity (Wang et al. Cancer Cell 2006; 10: 25-38). Tumors harbouring the Her2 YVMA mutation are largely resistant to known EGFR inhibitors (Arcila et al. Clin Cancer Res 2012, 18: 4910-4918).
It is object of the present invention to provide compounds as mutant-selective ErbB inhibitors, especially for the Exon 20 EGFR/Her2 mutations, and/or pharmaceutically acceptable salts thereof which can be used as pharmaceutically active agents, and use thereof especially for prophylaxis and/or treatment of cell proliferative disease, especially cancer, a combination comprising the inventive compound and at least one anticancer drug; as well as compositions comprising at least one of those compounds and/or pharmaceutically acceptable salts thereof as pharmaceutically active ingredients
The present invention provides novel compound(s) being mutant-selective ErbB inhibitors, especially for the Exon 20 EGFR/Her2 mutations, and additionally being inhibitors for other mutants like EGFR T790ML858R mutation.
The objective of the present invention is solved by the teaching of the independent claims. Further advantageous features, aspects and details of the invention are evident from the dependent claims, the description, the figures, and the examples of the present application.
The present invention provides a compound that exhibits inhibition of HER2 Exon20 A775_G776insYVMA (and similar mutations) and/or EGFR Exon20 H773_V774insNPH (and similar mutations). The present invention provides compound(s) being mutant-selective ErbB inhibitors, especially for the Exon20 EGFR/Her2 mutations, and additionally being inhibitors for other mutants like EGFR T790ML858R mutation. In certain embodiments the current invention is directed towards a compound that is mutant-specific for Exon20 of EGFR and Her2. In one aspect, the invention provides a compound comprising an irreversible kinase inhibitor. The compound covalently modifies cysteine 797/805 in EGFR/Her2.
The compound of the present invention and/or pharmaceutically acceptable salts thereof as pharmaceutical active ingredient can be used for treatment and/or prophylxis of a cell proliferative disease.
The cell proliferative disease is selected from breast cancer, colon cancer, prostate cancer, lung cancer, gastric cancer, ovarian cancer, endometrial cancer, renal cancer, hepatocellular cancer, thyroid cancer, uterine cancer, esophagus cancer, squamous cell cancer, leukemia, osteosarcoma, melanoma, glioblastoma and neuroblastoma. In an especially preferred embodiment, the disorders are selected from breast cancer, glioblastoma, renal cancer, non-small cell lung cancer (NSCLC), and melanoma. The compounds are also suitable for the prevention and/or treatment of other hyperproliferative disorders, particularly benign hyperproliferative disorders such as benign prostate hyperplasia.
Thus, the present invention is directed to a compound of the formula (I)
wherein
Z represents or
A represents
represents
B represents
R1 represents —H, —R*, —CH2—R*, —CHRa—R*, —CRaRb—R*, —CH2CH2—R*, —CRaRb—CRcRd—R*, —CH═CH—R*, —CRa═CRb—R*, —CH2CH2CH2—R* or —CRaRb—CRcRd—CReRf —R*;
Ra-Rf represent independently of each other —H, —F, —Cl, —CH3, —OCH3, —CH2CH3, —CH2CH2CH3, —CH(CH3)2, —CH2CH(CH3)2, or -cyclo-C3H5;
R* represents —H, —F, —Cl, —Br, —I, —OH, —CN, —NH2, —NHCH3, —NHC2H5, —NHC3H7, —NHCH(CH3)2, —NHC(CH3)3, —N(CH3)2, —N(C2H5)2, —N(C3H7)2, —N[CH(CH3)2]2, —N[C(CH3)3]2, —NO2, —OCH3, —OC2H5, OC3H7, —OCH(CH3)2, —OC(CH3)3, —OC4H9, —O-cyclo-C3H5, —OCH2-cyclo-C3H5, —O—C2H4-cyclo-C3H5, —CHO, —COCH3, —COC2H5, —COC3H7, —COCH(CH3)2, —COC(CH3)3, —OOC—CH3, —OOC—C2H5, —OOC—C3H7, —OOC—CH(CH3)2, —OOC-cyclo-C3H5, —OOC-cyclo-C3H5, —OCF3, —OC2F5, —NHCOCH3, —NHCOCH(CH3)2, —NHSO2CH3, —NHSO2C2H5, —NHSO2C3H7, —NHSO2CH(CH3)2, —NHSO2-cyclco-C3H5, —SOCH3, —SO2CH3, —SO2CF3, —SO2C2H5, —SO2CH2CF3, —SO2C3H7, —SO2CH(CH3)2, —SO2-cyclco-C3H5, —SO(NH)CH3, —SO(NH)C2H5, —SO(NH)C3H7, —SO(NH)CH(CH3)2, —SO(NH)-cyclco-C3H5, —SO(NCH3)CH3, —SO(NCH3)C2H5, —SO(NCH3)C3H7, —SO(NCH3)CH(CH3)2, —SO(NCH3)-cyclco-C3H5,
R2 represents —H, —F, —Cl, —Br, —I, —OH, —CN, —CH3, —OCH3, —OC2H5, —OC3H7, —OCH(CH3)2, —OC(CH3)3, —OC4H9, —O-cyclo-C3H5, —OCH2-cyclo-C3H5, or —O—C2H4-cyclo-C3H5; R3 represents —H, —CH3, —C2H40H, —OC2H40H, —NR27R28, —CH2NR27R28, —CH2CH2NR27R28, —CH2CH2CH2NR27R28, —NHCOR27, —NHSO2R27, —OCH2NR27R28, —OCH2CH2NR27R28, —OCH2CH2CH2NR27R28, —NR29CH2NR27R28, —NR29CH2CH2NR27R28, —NR29CH2CH2CH2NR27R28, —CONR27R28, —CONHCH2NR27R28, —CONHCH2CH2NR27R28, —CONHCH2CH2CH2NR27R28,
L is a bond, —CH2—, —CH(CH3)—, —CH2CH2—, —CH2CH2CH2—, —CF2—, —CF2CH2—, —OCH2—, —OCH2CH2—, —OCH2CH2CH2—, —NHCH2—, —NHCH2CH2—, —NHCH2CH2CH2—, —N(CH3)CH2—, —N(CH3)CH2CH2—, —N(CH3)CH2CH2CH2—, —NHCO—, —NHCOCH2—, —NHCOCH2CH2—, —CO—, —CH2CO—, —CH2CH2CO—, —COCH2—, —COCH2CH2—, —COCH2CO—, —COCH2CH2CO—, —CONH—, —CONHCH2—, —CONHCH2CH2—, —CONHCH2CH2CH2—, —OCO—, —SO2—, —CH2OCO— or —CH2CH2OCO—;
R4 represents —H, —CH3, or —C2H5;
R5 represents
R8-R11 represent independently of each other —H, —F, —Cl, —CN, —OCH3, —OC2H5, —OC3H7, —OCH(CH3)2, —OC(CH3)3, —OC4H9, —OCH2CH(CH3)2, —OC2H4OCH3, —CH2OCH3, —CH3, —CF3, —C2H5, or —C3H7, or R8 and R9 or R9 and R10 form together —CH2—, —CH2CH2—, —CH2CH2CH2—, —CH2CH2CH2CH2—, —CH2OCH2—, —CH2OCH2CH2—, —OCH2O—, or —OCH2CH2O—;
R12-R16 represent independently of each other —H, —F, —Cl, —CN, —OCH3, —OC2H5, —OC3H7, —OCH(CH3)2, —OC(CH3)3, —OC4H9, —OCH2CH(CH3)2, —OC2H4OCH3, —CH2OCH3, —CH3, —CF3, —C2H5, or —C3H7;
R17-R21 represent independently of each other —H, —F, —Cl, —CN, —OCH3, —OC2H5, —OC3H7, —OCH(CH3)2, —OC(CH3)3, —OC4H9, —OCH2CH(CH3)2, —OC2H4OCH3, —CH2OCH3, —CH3, —CF3, —C2H5, or —C3H7;
R22 represents —H, —CH3, —CF3, —C2H5, —C3H7, —COCH3, —COC2H5, —SO2CH3, or —SO2C2H5;
R23 represents —H, —CH3, —CF3, —C2H5, —C3H7, —CH2CH2OCH3, or —C4H9;
R24 and R25 represent independently of each other —H, —CH3, —CF3, —C2H5, —C3H7, —CH2CH2OCH3, —CH(CH3)2, —C4H9, -cyclo-C3H5, -cyclo-C4H7, -cyclo-C5H9, -cyclo-C6H11,
or R24 and R25 form together —CH2—, —CH2CH2—, —CH2CH2CH2—, —CH2CH2CH2CH2—, —CH2OCH2—, or —CH2OCH2CH2—; L1 represents a bond, —CH2—, —CH2CH2—, or —CH2CH2CH2—;
R26 represents —H, —CH3, —C2H5, —C3H7, —CH2CH2OCH3, —CH(CH3)2, —C4H9, -cyclo-C3H5, -cyclo-C4H7, -cyclo-C5H9, -cyclo-C6H11, —C(CH3)3, -Ph, or —CH2Ph;
R27-R31 represent independently of each other —H, —F, —Cl, —OH, —CN, —NH2, —OCH3, —OC2H5, —OC3H7, —OCH(CH3)2, —CH3, —CF3, —C2H5, —C3H7, —CH2CH2OCH3, —CH(CH3)2, —C4H9, -cyclo-C3H5, -cyclo-C4H7, -cyclo-C5H9, or -cyclo-C6H11;
R32, R37, R38, and R43 represent independently of each other —H, —CH3, —CF3, —C2H5, —C3H7, —CH(CH3)2, -Ph, —CH2Ph, —COCH3, —COCF3, —COC2H5, —COCH(CH3)2, —COC(CH3)3, —COPh, —CO2CH3, —CO2C2H5, —CO2CH(CH3)2, —CO2C(CH3)3, —CO2Ph, —CO2CH2Ph, —SO2CH3, —SO2C2H5, —SO2CF3, or —SO2Ph;
R33, R34, R35, and R36 represent independently of each other —H, —CH3, —CF3, —C2H5, —C3H7, —CH(CH3)2, —CN, —NO2, —COCH3, —COC2H5, —COC3H7, —COCH(CH3)2, —COC(CH3)3, —COOH, —COOCH3, —COOC2H5, —COOC3H7, —COOCH(CH3)2, or —COOC(CH3)3;
R39 represents —F, —Br, —Cl, or —I;
R40, R41, and R42 represent independently of each other —H, —F, —CI, —OH, —CN, —NH2, —CH3, —CF3, —C2H5, —C3H7, —CH(CH3)2, —OCH3, —OC2H5, —OC3H7, —OCH(CH3)2, —COCH3, —COCF3, —COC2H5, —COCH(CH3)2, —NHCH3, —NHC2H5, —N(CH3)2, —N(C2H5)2, —NHCOCH3, —NHCOCF3, —NHCOC2H5, —NHCOCH(CH3)2, —CO2H, —CO2CH3, —CO2C2H5, —CO2CH(CH3)2, —CO2Ph, —CO2CH2Ph, —CONH2, —CONHCH3, —CONHC2H5, —CONHCH(CH3)2, —CON(CH3)2, —SO2CH3, —SO2C2H5, —SO2CF3, —SO2Ph, —SO2NH2, —SO2NHCH3,
or an enantiomer, a mixture of enantiomers, a diastereomer, a mixture of diastereomers, a tautomer, a prodrug, a hydrate, a solvate, or pharmaceutically acceptable salts thereof.
In the definition of A ring, a bond “” of A ring is connected to C-3 of pyrrolo[2,3-b]pyridine backbone and a bond “
” of A ring is connected to nitrogen atom of the group NR4R5.
Similarly, in the definition of the moiety
bond “” is connected to C-3 of pyrrolo[2,3-b]pyridine backbone and a bond “
” is connected to the group R5.
R4′ represents
In the definition of B ring, a bond “” of B ring is connected to C-2 of pyrrolo[2,3-b]pyridine backbone and a bond “
” of A ring is connected to the group R3.
Preferred is the compound of the formula (I), wherein
A represents
represents
B represents
and R8-R21 have the same meanings as defined herein.
Also preferred is the compound of the formula (I), wherein
A represents R8
B represents
and R8-R11, and R16-R21 have the meanings as defined herein.
More preferred is the compound of the formula (I), wherein
A represents
B represents
and R9-R10, and R16-R21 have the meanings as defined herein.
More preferred is the compound of the formula (I), wherein
A represents
B represents
R8-R11 and R16-R21 have the meanings as defined herein.
Still more preferred is the compound of the formula (I), wherein the compound has the formula (Ia) or (Ib):
wherein
A represents
represents
B represents
and R1, R2, R3, R4, and R5 have the same meanings as defined herein.
Still more preferred is the compound of any one of the formulae (I), (Ia) and (Ib), wherein
Z represents
and is selected from
R1 represents —H, —CN, —C2H5, —OC2H5, —OCF3, —CH2OH, —COOH, —COOCH3, —COOCH2CH3, —COOCH(CH3)2, —COOCH2CH2OCH3, —COO-cyclo-C3H5, —COO-cyclo-C4H7, —COO-cyclo-C5H9, —COO-cyclo-C6H11, —CONHCH(CH3)2, —CONH-cyclo-C6H11, —CH2COOH, —CH2COOCH3, —CH2OCH(CH3)2, —CH2CONH(CH3), —CH2CON(CH3)2, —NHCOCH3, —NHCOCH(CH3)2,
R2 represents —H, —Cl, —CH3, —OCH3, —OC2H5, or —OCH(CH3)2;
B represents
R3 represents —H, —CH2N(CH3)2, —CH2CH2N(CH3)2, —OCH2CH2N(CH3)2, —OCH2CH2CH2N(CH3)2, —CH2N(CH3)2, —NHCOCH3, —NHSO2CH3, —N(CH3)CH2CH2N(CH3)2, —CONH-cyclo-C3H5, —CONH-cyclo-C6H11, —CONHCH2CH2N(CH3)CH2Ph, —CH2CH2OH, —OCH2CH2OH,
R5 represents
L is a bond, —CH2—, —OCH2CH2—, —CO—, —CONH—, —SO2—, or —CONHCH2CH2CH2—; and
R32 represents —H, —CH3, —C2H5, —CH(CH3)2, —CH2Ph, —COCH3, or —SO2C2H5.
In certain aspects, the compound described above is a compound of formula (II) and (III):
wherein B, R1, R2, R3 and R5 have the same meanings as defined herein.
Preferred is the compound of the formula (II), wherein
B represents
R3 represents —H, —CH2N(CH3)2, —CH2CH2N(CH3)2, —OCH2CH2N(CH3)2, —OCH2CH2CH2N(CH3)2, —CH2N(CH3)2, —NHCOCH3, —NHSO2CH3, —N(CH3)CH2CH2N(CH3)2, —CONH-cyclo-C3H5, —CONH-cyclo-C6H11, —CONHCH2CH2N(CH3)CH2Ph, —CH2CH2OH,
R5 represents
L is a bond, —CH2—, —OCH2CH2—, —CO—, —CONH—, —SO2—, or —CONHCH2CH2CH2—; and
R32 represents —H, —CH3, —C2H5, —CH(CH3)2, —CH2Ph, —COCH3, or —SO2C2H5.
Preferred are also compounds of formula (III):
wherein
R1, R2, R3 and R5 have the same meanings as defined above;
X represents CH2, when n is 1, or 2; or
X represents O, when n is 2;
Preferred is the compound of the formula (III), wherein
B represents
R5 represents
Also preferred is the compound of any one of the formulae (IIIa), (IIIb) and (IIIc):
wherein, B, R1, R2, R3, and R5, have the same meanings as defined in the formula (I).
Still more preferred are the compounds of any one of the formulae (II-1)-(II-6), (IIa), (IIb), (IIc), (IId) (IIe), (IIf-1)-(IIf-3), (IIIa-1)-(IIIa-5), (III-1)-(III-5 and (IIIc-1).
wherein, R1, R2, R3, R5, R20 and R21 have the meanings as defined in the formula (I).
In any one of the formulae (II-1)-(II-6), (IIa), (IIb), (IIc), (IId), (Ile), (IIf-1)-(IIf-3), (IIIa-1)-(IIIa-5), (IIIb-1)-(IIIb-5), (IIIc-1)-(IIIc-5), preferred, R1 represents —H, —CN, —C2H5, —OC2H5, —OCF3, —CH2OH, —COOH, —COOCH3, —COOCH2CH3, —COOCH(CH3)2, —COOCH2CH2OCH3, —COO-cyclo-C3H5, —COO-cyclo-C4H7, —COO-cyclo-C5H9, —COO-cyclo-C6H11, —CONHCH(CH3)2, —CONH-cyclo-C6H11, —CH2COOH, —CH2COOCH3, —CH2COOCH(CH3)2, —CH2CONH(CH3), —CH2CON(CH3)2, —NHCOCH3, —NHCOCH(CH3)2,
R2 represents —H, —Cl, —CH3, —OCH3, —OC2H5, or —OCH(CH3)2;
R3 represents —H, —CH2N(CH3)2, —CH2CH2N(CH3)2, —OCH2CH2N(CH3)2, —OCH2CH2CH2N(CH3)2, —CH2N(CH3)2, —NHCOCH3, —NHSO2CH3, —N(CH3)CH2CH2N(CH3)2, —CONH-cyclo-C3H5, —CONH-cyclo-C6H11, —CONHCH2CH2N(CH3)CH2Ph, —CH2CH2OH, —OCH2CH2OH,
R5 represents
L is a bond, —CH2—, —OCH2CH2—, —CO—, —CONH—, —SO2—, or —CONHCH2CH2CH2—; and
R32 represents —H, —CH3, —C2H5, —CH(CH3)2, —CH2Ph, —COCH3, or —SO2C2H5.
Especially preferred compounds according to the present invention include compounds presented by Table 1.
or an enantiomer, a mixture of enantiomers, a diastereomer, a mixture of diastereomers, a tautomer, a prodrug, a hydrate, a solvate of the above mentioned compounds, or pharmaceutically acceptable salts thereof.
The expression prodrug is defined as a substance, which is applied in an inactive or significantly less active form. Once applied and incorporated, the prodrug is metabolized in the body in vivo into the active compound. Conventional procedures for the selection and preparation of suitable prodrug derivatives are described, for example in “Design of Prodrugs”, ed. H. B. Bundgaard, Elsevier, 1985.
The present invention also includes within its scope N-oxides of the compounds of formula (I) above. In general, such N-oxides may be formed by conventional means, such as reacting the compound of formula (I) with oxone in the presence of wet alumina.
The expression tautomer is defined as an organic compound that is interconvertible by a chemical reaction called tautomerization. Tautomerization can be catalyzed preferably by bases or acids or other suitable compounds.
The compounds of the present invention may form salts with organic or inorganic acids or bases. Examples of suitable acids for such acid addition salt formation are hydrochloric acid, hydrobromic acid, sulfuric acid, phosphoric acid, acetic acid, citric acid, oxalic acid, malonic acid, salicylic acid, p-aminosalicylic acid, malic acid, fumaric acid, succinic acid, ascorbic acid, maleic acid, sulfonic acid, phosphonic acid, perchloric acid, nitric acid, formic acid, propionic acid, gluconic acid, lactic acid, tartaric acid, hydroxymaleic acid, pyruvic acid, phenylacetic acid, benzoic acid, p-aminobenzoic acid, p-hydroxybenzoic acid, methanesulfonic acid, ethanesulfonic acid, nitrous acid, hydroxyethanesulfonic acid, ethylenesulfonic acid, p-toluenesulfonic acid, naphthylsulfonic acid, sulfanilic acid, camphorsulfonic acid, china acid, mandelic acid, o-methylmandelic acid, hydrogen-benzenesulfonic acid, picric acid, adipic acid, D-o-tolyltartaric acid, tartronic acid, (o, m, p)-toluic acid, naphthylamine sulfonic acid, trifluoroacetic acid, and other mineral or carboxylic acids well known to those skilled in the art. The salts are prepared by contacting the free base form of the compounds of formula (I) with a sufficient amount of the desired acid to produce a salt in the conventional manner well known to those skilled in the art.
The inventive compounds may exist in a number of different polymorphic forms.
In the case the inventive compounds bear acidic groups, salts could also be formed with inorganic or organic bases. Examples for suitable inorganic or organic bases are, for example, NaOH, KOH, NH4OH, tetraalkylammonium hydroxide, lysine or arginine and the like. Salts may be prepared in a conventional manner using methods well known in the art, for example by treatment of a solution of the compound of the general formula (I) with a solution of an acid, selected out of the group mentioned above.
The inventors found that in order to obtain inhibitors which exhibit metabolic stability against liver microsomes the 2-position at the phenyl ring next to the warhead must be substituted. The warhead can be a but-2-enamide, 4-(dimethylamino)but-2-enamide, propiolamide, ethenesulfonamide, acrylamide, or 2-chloro-acetamide residue. The position 2 on the phenyl ring next to the warhead must be different from hydrogen and is preferably an alkyl or alkylenyl residue such as a methyl group (like in compounds No. 1-54, 72-82, 116-148) or can be part of a ring system preferably containing the nitrogen atom of the warhead (like in compounds No. 55-71, 83-95, 98-115).
Without this substituent and especially without this —CH3 or —CH2— substituent, no metabolic stability against liver microsomes can be achieved and consequently no pharmaceutical activity can be obtained in vivo.
The compound of formula (I) is prepared by reference to the methods illustrated in the following schemes 1-4. The compound of formula (I) is produced by Schemes 1-3 by the suitable selection of reagents with appropriate substitution. Solvents, temperatures, pressures, and other reaction conditions may readily be selected by one of ordinary skill in the art. Starting materials are commercially available or readily prepared by one of ordinary skill in the art.
As shown in Scheme 1, the present invention is directed to a method for producing the compound of formula (Ia-1) comprising:
Step A1: performing a first cross coupling reaction of pyridine compound 1* with alkyne compound 2a*
to obtain a compound 3*
in the presence of a first palladium catalyst, and a first base;
Step B1: converting a trimethylsilyl group of the compound 3* to a halide like an iodide to obtain a compound 4*
Step C1: performing a second cross coupling reaction of 4* with a compound 5*
in the presence of a second palladium catalyst, and a second base to obtain a compound 6*
Step D1: reducing nitro (NO2) group of the compound 6* to a primary amine (NH2) group to obtain a compound 7*; and
Step E1: performing a coupling reaction of the compound 7*
with a compound HO—R5 or AG-R5 to obtain a product compound of the formula (Ia-1)
The compound 1* has following formula
wherein R1, R2 have the same meanings as defined in the formula (I);
X is a leaving group and represents Cl, Br, I, or OTf.
Alternatively, the sequence of the second cross coupling reaction, reduction of nitro group and further coupling reaction may be changed and therefore the product compound 1a-1 is obtained by the following method.
A method for producing a compound of the formula (Ia-1) comprising (Scheme 2):
Step A1: performing a first cross coupling reaction of pyridine compound 1* with alkyne compound 2a*
to obtain a compound 3*
in the presence of a first palladium catalyst, and a first base;
Step D2: reducing nitro (NO2) group of the compound 3* to a primary amine (NH2) group to obtain a compound 10*
Step E2: performing a coupling reaction of the compound 10* with a compound HO—R5 or AG-R5 to obtain a compound 11*
Step B2: converting a trimethylsilyl group of the compound 11* to a halide like an iodide to obtain a compound 12*
and
Step C2: performing a second cross coupling reaction of the compound 12* with a compound 5* in the presence of a second palladium catalyst, and a second base to obtain a product compound of the formula (Ia-1)
Another aspect of the present invention is a method for producing the compound of formula (Ib) is described in Scheme 3.
A method for producing the compound of formula (Ib) comprising:
Step A3:
ii) removing a protecting group PG of a resulting compound after the step i) to obtain a compound 3b*
Step E3: performing a coupling reaction of the compound 3b* with a compound HO—R5 or AG-R5 to obtain a compound 11b*
Step B3: converting a trimethylsilyl group of the compound 11b* to a halide like an iodide to obtain a compound 12b*
and
Step C3: performing a second cross coupling reaction of the compound 12b* with a compound 5*
A further method for producing the compound of formula (Ia-1) is described in Scheme 4.
A further method for producing the compound of formula (Ia-1) comprising:
Step A4: performing a first cross coupling reaction of pyridine compound 1*
Step B4: converting a trimethylsilyl group of the compound 13* to a halide like an iodide to obtain a compound 14*
Step C4: performing a second cross coupling reaction of the compound 14* with a compound 5*
in the presence of a second palladium catalyst, and a second base to obtain a compound 15*
Step E4:
In the above-mentioned method for producing the compound of formula (Ia-1) or (Ib), and in the schemes 1 to 4, A, B, R1, R2, R3, R4, R4′, R5 and
have the same meanings as defined in the formula (I);
X is a leaving group and represents Cl, Br, I, or OTf;
AG is an activating group of carboxylic acid;
PG is an amino protecting group;
TMS is a trimethylsilyl group; and
R′ is H or an alkyl chain with 1-10 carbon atoms or a cycloalkyl chain with 3 to 12 carbon atoms or both residues R′ represent together a residue derived from pinacol.
In each of the steps A1, A3, and A4, Sonogashia coupling reaction of compound 1* and domino cyclization of the resulting coupling compound is performed in the present of the first palladium catalyst, and the base. Optionally, copper catalyst may be used as cocatalyst and is preferred Cu(I) and more preferred CuI.
The first palladium catalyst for C—C coupling reaction is Pd(0) or Pd(II) catalyst, preferred PdCl2, Pd(PPh3)4, Pd(acac)2, PdCl2(CH3CN)2, PdCl2(PCy3)2, PdCl2(PPh3)2, Pd(dppf)Cl2, [(π-ally)PdCl]2, (SIPr)PdCl2(TEA). Optionally, further phosphine ligand may be used together with the first palladium catalyst.
A ratio of the palladium catalyst to the starting material is in the range of 0.01 to 20 mol-%, preferred 0.01-10 mol-%, more preferred 0.01-5 mol-%, most preferred 0.01-1 mol-%.
The first base may be an organic base or inorganic bases. The organic base may be tertiary amine such as Et3N, and DIPEA, DABCO, DBU, pyrrolidine or piperidine. The inorganic base may be K2CO3, Cs2CO3 or K3PO4. A ratio of the first base to the starting material is in the range of 1.0 to 5.0 equivalents, preferred 1.0 to 3.0 equivalents, more preferred 1.0 to 3.0 equivalents, most preferred 1.0 to 1.5 equivalents.
Preferred, this reaction is performed in a polar aprotic solvent such as DMF or DMSO under N2 atmosphere at a temperature in a range of 80 to 200° C., preferred 100 to 180° C., more preferred 100 to 150° C., most preferred 120 to 150° C.
In each of the steps B1, B2, B3 and B4, conversion of trimethylsilyl (TMS) group to iodide group is performed by treating with N-iodosuccinimide (NIS) as an idonation reagent for 15 h at a temperature in a range of 10 to 35° C., preferred, 15 to 30° C., more preferred 20 to 30° C. A polar aprotic solvent such as dichlorormethane or chlororform is used.
In each of the steps C1, C2, C3, and C4, Suzuki coupling reaction of iodinated compound 4*, 12*, 12b*, or 14* with a compound 5* as a boronic acid derivative is performed in the present in the second palladium catalyst and the second base.
The second palladium catalyst is Pd(0) or Pd(II) catalyst. The Pd(0) catalyst may be tetrakis(triphenylphosphine)palladium(0) [Pd(PPh3)4], tris(dibenzylideneacetone)di-palladium(0) [Pd2(dba)3]. Pd(II) catalyst may be dichlorobis(triphenylphosphine)-palladium(II) [Pd(PPh3)2Cl2], palladium(II) acetate and triphenylphosphine or more preferred [1,1′-bis(diphenylphosphino)ferrocene]palladium dichloride. The reaction is preferably carried out in a mixture of a solvent like dioxane, DMF, DME, THF, or isopropanol with water and in the presence of the second base like aqueous sodium bicarbonate or K3PO4.
In each of the Steps D1 and D2, a nitro (NO2) group is reduced to a primary amine (NH2) group with the treatment of a reducing agent. Preferred, Fe, or Pd/H2 is used as a reducing agent.
In each of the Steps E1, E2, E3 and E4, R5 group is introduced by a coupling reaction with HO—R5 or AG-R5.
For performing the coupling reaction, firstly carboxylic acid or sulfonic acid group of HO—R5 is activated in situ to promote the coupling reaction with amino group of intermediate compound. If HO—R5 is a carboxylic acid, the activating group (AG) of carboxylic acid may be introduced in situ reaction. Preferably, the activating group (AG) may be selected from the group consisting of or comprising: halides such as —F, —Br, —Cl, —I, anhydride group such as —OCOCH3, N-oxy-benzotriazol group and N-oxy-succinimide.
Preferably,
HO—R5 represents
Further, a carboxylic acid of HO—R5 is coupled with the amine group of intermediate compound by a well-known amide coupling reaction. Any of the following coupling reagent can be used for amide coupling reaction: BOP, PyBOP, AOP, PyAOP, TBTU, EEDQ, Polyphosphoric Acid (PPA), DPPA, HATU, HOBt, HOAt, DCC, EDCl, BOP-CI, TFFH, Brop, PyBrop, and CIP.
For performing the coupling reaction, also an activated compound AG-R5 having activated carboxyl sulfony group can be used.
AG-R5 represents
As above described, the activating group (AG) may be selected from the group consisting of or comprising: halides such as —F, —Br, —Cl, —I, anhydride group such as —OCOCH3, N-oxy-benzotriazol group and N-oxy-succinimide, preferred AG is C1.
Preferred, AG-R5 is
In the Step A3 and E4, a protecting group (PG) is an amino protecting group. The amine protecting group may be t-butyloxycarbonyl (Boc) or benzyloxycarbonyl (Cbz) and removed under acidic condition, for example, treating with HCl, or TFA.
In an embodiment, the present invention is directed to an intermediate compound selected from the group consisting of the compounds 3*, 3b*, 4*, 7*, 10*, 11*, 11b*, 12*, 12b*, 13*, 14*, and 15*:
wherein A, B, R1, R2, R3, R4, R4′, R5, PG and
have the same meanings as defined above; and TMS is trimethyl silyl group.
The structure activity relationship (SAR) of the compounds of the present invention as represented by the following formula (IV) shows covalent inhibitors as cellular potent mutant-selective ErbB inhibitors. The covalent binding mode, obtained for example through the introduction of an acrylic moiety, is crucial for cellular activity. The direct comparison of examples from this invention having a acryl moiety for the covalent binding with corresponding molecules having a propionic moiety are showing the improved cellular activities for the covalent binder.
Table 6 shows comparison of covalent inhibitors (Example 2 and 148) with the corresponding reversible analogues (References 3 and 4). In both cases the covalent inhibitor shows (Example 2 and 148) improved cellular activities compared to the reversible analogues (References 3 and 4).
It is found that the compound of the present invention is useful for the prophylaxis and/or the treatment of cancer having activating mutation of a receptor belonging to the ErbB family of receptor, preferred, the mutation is an insertion within exon 20 of EGFR or within exon 20 of HER2.
Further aspect of the present invention relates to the use of the compound of general formula (I) for the preparation of a pharmaceutical composition useful for prophylaxis and/or treatment of a cancer having activating mutation of a receptor belonging to the ErbB family of receptor, preferred, the mutation is an insertion within exon 20 of EGFR or within exon 20 of HER2.
Another aspect of the present invention relates to a method of treatment. This method comprises administering a therapeutically effective amount of at least one compound of general formula (I) to a patient suffering from a cancer having activating mutation of a receptor belonging to the ErbB family of receptor, preferred, the mutation is an insertion within exon 20 of EGFR or within exon 20 of HER2
The compound of the present invention is a selective inhibitor of mutants of EGFR and Her2, preferred Exon 20 mutations as shown in Table 3.
Thus, the compound of the present invention is useful as a medicament. The compound of the present invention is useful for the prophylaxis and/or the treatment of cell proliferative disease, especially cancer.
Said cancer is selected from breast cancer, colon cancer, prostate cancer, lung cancer, gastric cancer, ovarian cancer, endometrial cancer, renal cancer, hepatocellular cancer, thyroid cancer, uterine cancer, esophagus cancer, squamous cell cancer, leukemia, lymphoma, osteosarcoma, mamma carcinoma, melanoma, glioblastoma and neuroblastoma.
In specific embodiment, the compound is useful for in the the prophylaxis and/or the treatment of non small cell lung cancer (NSCLC) or mamma carcinoma.
Preferred, the mutation is an insertion within exon 20 of EGFR or within exon 20 of HER2. One aspect herein are the compounds of the present invention for use in the prophylaxis and/or the treatment of cancer caused by or associated with mutations associated with EGFR TKI resistance and in particular caused by or associated with in-frame insertions and/or duplications of 3 to 21 base pairs (bp) between codons 763 and 775 of the Her2 gene or the EGFR (Her1) gene. More preferred, the mutation is selected from the group consisting of Her2 INS8 INS YVMA, EGFR D770_N771 insSVD, EGFR H773_V774insNPH, EGFR V769_D770insASV, EGFR P772_H773insPR, EGFR T790M and EGFR T790ML858R. The important sequences are shown in SEQ-ID No. 1 to SEQ:NO 7 in
The compounds of the present invention have improved stability towards hydrolysis of the acrylamide moiety in liver microsomes as summarized in Table 5.
Preferably, the following compounds have improved stability: N-(5-(4-chloro-2-(4-((4-methylpiperazin-1-yl)methyl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(4-(1-methylpiperidin-4-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(4-(2-(dimethylamino)ethyl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(4-(morpholinomethyl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(3-morpholinophenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(2-(4-(4-acetylpiperazin-1-yl)phenyl)-4-chloro-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(4-(4-methylpiperazine-1-carbonyl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(4-((dimethylamino)methyl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(4-(morpholine-4-carbonyl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(4-(3-(dimethylamino)propoxy)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(4-(4-(ethylsulfonyl)piperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(3-((4-methylpiperazin-1-yl)methyl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(3-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(4-(2-(dimethylamino)ethoxy)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(6-(4-methylpiperazin-1-yl)pyridin-3-yl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(3-(3-(dimethylamino)propoxy)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(2-methoxy-4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(2-(3-((4-acetylpiperazin-1-yl)methyl)phenyl)-4-chloro-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(4-(3-(4-ethylpiperazin-1-yl)propoxy)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(pyrimidin-5-yl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(3-(3-(4-ethylpiperazin-1-yl)propoxy)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(2-(4-methylpiperazin-1-yl)pyridin-4-yl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(3-(morpholine-4-carbonyl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(3-(2-(dimethylamino)ethoxy)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(4-(piperidin-4-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(6-morpholinopyridin-3-yl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(2-(6-(4-acetylpiperazin-1-yl)pyridin-3-yl)-4-chloro-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(2-morpholinopyridin-4-yl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(2-morpholinopyrimidin-5-yl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(3-(2-(pyrrolidin-1-yl)ethoxy)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(4-(2-(pyrrolidin-1-yl)ethoxy)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(2-(4-methylpiperazin-1-yl)pyrimidin-5-yl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(4-(4-ethylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(4-(4-isopropylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(3-fluoro-4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-chloro-2-(4-((2-(dimethylamino)ethyl)(methyl)amino)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, 1-(6-(4-chloro-2-(4-(1-methylpiperidin-4-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)indolin-1-yl)prop-2-en-1-one, 1-(6-(4-chloro-2-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)indolin-1-yl)prop-2-en-1-one, 1-(6-(4-chloro-2-(3-fluoro-4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)indolin-1-yl)prop-2-en-1-one, 1-(6-(2-(4-(4-acetylpiperazin-1-yl)phenyl)-4-chloro-1H-pyrrolo[2,3-b]pyridin-3-yl)indolin-1-yl)prop-2-en-1-one, 1-(6-(4-chloro-2-(2-(4-methylpiperazin-1-yl)pyridin-4-yl)-1H-pyrrolo[2,3-b]pyridin-3-yl)indolin-1-yl)prop-2-en-1-one, 1-(6-(4-chloro-2-(4-((4-methylpiperazin-1-yl)methyl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)indolin-1-yl)prop-2-en-1-one, 1-(6-(4-chloro-2-(4-((dimethylamino)methyl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)indolin-1-yl)prop-2-en-1-one, 1-(6-(4-chloro-2-(4-(4-isopropylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)indolin-1-yl)prop-2-en-1-one, 1-(6-(4-chloro-2-(4-(4-ethylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)indolin-1-yl)prop-2-en-1-one, 1-(6-(4-chloro-2-(3-(2-(pyrrolidin-1-yl)ethoxy)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)indolin-1-yl)prop-2-en-1-one, 1-(6-(4-chloro-2-(4-((2-(dimethylamino)ethyl)(methyl)amino)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)indolin-1-yl)prop-2-en-1-one, 1-(6-(4-chloro-2-(4-(4-methylpiperazine-1-carbonyl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)indolin-1-yl)prop-2-en-1-one, 1-(6-(4-chloro-2-(4-(2-(dimethylamino)ethoxy)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)indolin-1-yl)prop-2-en-1-one, 1-(6-(4-chloro-2-(4-(morpholinomethyl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)indolin-1-yl)prop-2-en-1-one, 1-(6-(4-chloro-2-(3-((4-methylpiperazin-1-yl)methyl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)indolin-1-yl)prop-2-en-1-one, 1-(6-(4-chloro-2-(6-(4-methylpiperazin-1-yl)pyridin-3-yl)-1H-pyrrolo[2,3-b]pyridin-3-yl)indolin-1-yl)prop-2-en-1-one, 1-(6-(4-chloro-2-(4-(3-(dimethylamino)propoxy)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)indolin-1-yl)prop-2-en-1-one, N-(5-(4-methoxy-2-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-methoxy-2-(4-(1-methylpiperidin-4-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(2-(4-(4-acetylpiperazin-1-yl)phenyl)-4-methoxy-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-methoxy-2-(4-(morpholinomethyl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-methoxy-2-(3-((4-methylpiperazin-1-yl)methyl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(4-methoxy-2-(4-((4-methylpiperazin-1-yl)methyl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(2-methyl-5-(2-(6-(4-methylpiperazin-1-yl)pyridin-3-yl)-1H-pyrrolo[2,3-b]pyridin-3-yl)phenyl)acrylamide, N-(2-methyl-5-(2-(4-(1-methylpiperidin-4-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)phenyl)acrylamide, N-(2-methyl-5-(2-(2-morpholinopyridin-4-yl)-1H-pyrrolo[2,3-b]pyridin-3-yl)phenyl)acrylamide, N-(5-(2-(3-((4-acetylpiperazin-1-yl)methyl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(2-methyl-5-(2-(3-(morpholinomethyl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)phenyl)acrylamide, 1-(6-(4-chloro-2-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2H-benzo[b][1,4]oxazin-4(3H)-yl)prop-2-en-1-one, 1-(6-(4-chloro-2-(4-((2-(dimethylamino)ethyl)(methyl)amino)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2H-benzo[b][1,4]oxazin-4(3H)-yl)prop-2-en-1-one, 1-(6-(4-chloro-2-(4-(4-isopropylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2H-benzo[b][1,4]oxazin-4(3H)-yl)prop-2-en-1-one, 1-(7-(4-chloro-2-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-3,4-dihydroquinolin-1(2H)-yl)prop-2-en-1-one, 1-(7-(4-chloro-2-(3-(2-(dimethylamino)ethoxy)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-3,4-dihydroquinolin-1 (2H)-yl)prop-2-en-1-one, 1-(7-(4-chloro-2-(4-(4-isopropylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-3,4-dihydroquinolin-1 (2H)-yl)prop-2-en-1-one, 1-(7-(4-chloro-2-(4-(2-(dimethylamino)ethoxy)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-3,4-dihydroquinolin-1 (2H)-yl)prop-2-en-1-one, 1-(7-(4-chloro-2-(6-(4-methylpiperazin-1-yl)pyridin-3-yl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-3,4-dihydroquinolin-1(2H)-yl)prop-2-en-1-one, 1-(7-(4-chloro-2-(3-((4-methylpiperazin-1-yl)methyl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-3,4-dihydroquinolin-1(2H)-yl)prop-2-en-1-one, N-(5-(4-chloro-2-(4-(piperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, N-(5-(5-cyano-2-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, 1-(6-(4-chloro-2-(2-(4-methylpiperazin-1-yl)pyridin-4-yl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2H-benzo[b][1,4]oxazin-4(3H)-yl)prop-2-en-1-one, 1-(6-(4-chloro-2-(4-((4-methylpiperazin-1-yl)methyl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2H-benzo[b][1,4]oxazin-4(3H)-yl)prop-2-en-1-one, 1-(6-(4-chloro-2-(4-((4-methylpiperazin-1-yl)methyl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2H-benzo[b][1,4]oxazin-4(3H)-yl)prop-2-en-1-one, 1-(6-(4-ethoxy-2-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)indolin-1-yl)prop-2-en-1-one, 1-(6-(4-ethoxy-2-(4-((4-methylpiperazin-1-yl)methyl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)indolin-1-yl)prop-2-en-1-one, 1-(6-(4-ethoxy-2-(3-(2-(pyrrolidin-1-yl)ethoxy)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)indolin-1-yl)prop-2-en-1-one, 1-(6-(4-methoxy-2-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)indolin-1-yl)prop-2-en-1-one, 1-(6-(4-methoxy-2-(2-(4-methylpiperazin-1-yl)pyridin-4-yl)-1H-pyrrolo[2,3-b]pyridin-3-yl)indolin-1-yl)prop-2-en-1-one, 1-(6-(4-methoxy-2-(4-(2-(pyrrolidin-1-yl)ethoxy)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)indolin-1-yl)prop-2-en-1-one, 1-(6-(4-methoxy-2-(4-((4-methylpiperazin-1-yl)methyl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)indolin-1-yl)prop-2-en-1-one, 1-(6-(4-isopropoxy-2-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)indolin-1-yl)prop-2-en-1-one, 3-(3-acrylamido-4-methylphenyl)-2-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylic acid, isopropyl 3-(3-acrylamido-4-methylphenyl)-2-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylate, 3-(3-acrylamido-4-methylphenyl)-N-isopropyl-2-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxamide, 3-(3-acrylamido-4-methylphenyl)-N-cyclohexyl-2-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxamide, methyl 3-(3-acrylamido-4-methylphenyl)-2-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylate, ethyl 3-(3-acrylamido-4-methylphenyl)-2-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylate, cyclopropyl 3-(3-acrylamido-4-methylphenyl)-2-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylate, N-(5-(4-ethoxy-2-(4-(1-methylpiperidin-4-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, isopropyl 3-(3-acrylamido-4-methylphenyl)-2-(4-((2-(dimethylamino)ethyl)(methyl)amino)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylate, N-(5-(5-chloro-4-methyl-2-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide, isopropyl 3-(3-acrylamido-4-methylphenyl)-2-(4-(4-ethylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylate, isopropyl 3-(3-acrylamido-4-methylphenyl)-2-(4-(2-(pyrrolidin-1-yl)ethoxy)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylate, isopropyl 3-(3-acrylamido-4-methylphenyl)-2-(4-(2-(dimethylamino)ethoxy)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylate, isopropyl 3-(3-acrylamido-4-methylphenyl)-2-(4-((4-methylpiperazin-1-yl)methyl)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylate, isopropyl 3-(3-acrylamido-4-methylphenyl)-2-(4-(2-(dimethylamino)ethyl)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylate, isopropyl 3-(3-acrylamido-4-methylphenyl)-2-(3-fluoro-4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylate, isopropyl 3-(3-acrylamido-5-fluoro-4-methylphenyl)-2-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylate, isopropyl 3-(3-acrylamido-4-methylphenyl)-2-(3-(2-(pyrrolidin-1-yl)ethoxy)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylate, isopropyl 3-(3-acrylamido-5-fluoro-4-methylphenyl)-2-(4-((2-(dimethylamino)ethyl)(methyl)amino)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylate, isopropyl 3-(3-acrylamido-4-methylphenyl)-2-(4-(4-isopropylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylate, isopropyl 3-(3-acrylamido-5-fluoro-4-methylphenyl)-2-(4-((dimethylamino)methyl)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylate, isopropyl 3-(3-acrylamido-5-fluoro-4-methylphenyl)-2-(4-(1-methylpiperidin-4-yl)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylate, isopropyl 3-(3-acrylamido-5-fluoro-4-methylphenyl)-2-(4-(2-(dimethylamino)ethoxy)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylate, isopropyl 3-(3-acrylamido-4-methylphenyl)-2-(3-((dimethylamino)methyl)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylate.
In an embodiment, the present invention is directed to the compound of in combination with at least one anticancer drug for use in treatment of cancer. The at least one anticancer is anticancer drug inhibting EGFR/HER2 tyrosine kinases, anticancer drug targeting the RAS/RAF/MEK/ERK signal pathway, anticancer drug targeting PI3K/AKT/mTOR signal pathway, and/or anticancer drug targeting JAK/STAT signal pathway.
The anticancer drug inhibting EGFR/HER2 tyrosine kinases is selected from the group consisting of A928605, ABT414, ABT806, AC480, Adgef (gefitinib), AEE788, AF802 (alectinib hydrochloride), Afatinib, Afinitor (everolimus), AFM21, AG1478, AGT2000, AL6802, ALL3, AMG595, Anti-Cripto-1 monoclonal antibodies PRIMA BIOMED, AP23464, AP26113, ARQ197 (tivantinib), ARRY380, ARRY543 (varlitinib tosylate), ASP7487 (linsitinib), ASP8273, AV203, AVL291, AZD4769, AZD9291, B-Peptimetics ANTYRA, BGB324, BIBW2948BS, Bispecific Anti-Her2 Zybodies ZYNGENIA (trastuzumab), Bispecific Anti-Her3 Zybodies ZYNGENIA (cetuximab), Bispecific Antibody Drug Conjugate Program AVIDBIOLOGICS, BL7030, BMS536924, BMS582664 (brivanib alaninate), BMS690514, BMSATI2, BT2111 (trastuzumab), CAB051, Canertinib, Caprelsa (vandetanib), CCX140, CDX110, CetuGEX, Cetuximab AMGEN, Cetuximab BIOXPRESS THERAPEUTICS, Cetuximab HARVEST MOON, Cetuximab ONCOBIOLOGICS, Cetuximab PANACEA BIOTECH, Cetuximab PLANTFORM, Cetuximab ZENOTECH, CGP59326A, Chemofit (gefitinib), C11033 (canertinib dihydrochloride), CIMAher (nimotuzumab), Citoprot-P, CMAB009 (cetuximab), cMet-EGFR Dual Inhibitor CRYSTALGENOMICS, CO-1686, Cometriq (cabozantinib), Conmana (icotinib hydrochloride), CTP15 (cetuximab), CTX023, CUDC101, CYC202 (seliciclib), DC101, DXL1218, EDP13, EGF816, EGFR Antibody Drug Conjugate AVIDBIOLOGICS, EGFR BiTE antibody MICROMET, EGFR Monoclonal Antibody REVO, EGFR Probody Drug Conjugate CYTOMX, EGFR-Antibody-Targeted Endostatin Payload, EGFR501, EKB569 (pelitinib), EM1-mAb GENMAB, EMD121974 (cilengitide), EMD72000 (matuzumab), Emfib (gefitinib), Epidermal Growth Factor Receptor (EGFR) humanized antibody CHINA PHARMAHUB, Erbitux (cetuximab), Erlobenz (erlotinib), Erlocip (erlotinib), Erlonat NATCO (erlotinib), Erlonat RADIANCE (erlotinib), Erlons (erlotinib hydrochloride), Erlostar (erlotinib), Erloswift (erlotinib), Erlotad (erlotinib), Erlotaz (erlotinib), Erlotinib CYNO PHARMACEUTICALS (erlotinib hydrochloride), Erlotinib hydrochloride HETERO, Erlotinib Hydrochloride MYLAN, Erlotinib hydrochloride TEVA, Erlotinib LABORATORIOS INDUQUIMICA, Erlotinib NAPROD, Erlotinib P2D BIOSCEINCE, Erlotinib SALIUS, Erlotinib SRS PHARMA, Erlotinib UNITED BIOTECH, Etk/Bmx Kinase Inhibitor ASTEX, EZN3920, Fderceptin SHANGHAI FUDAN-ZHANGJIANG, FV225, Geffy (gefitinib), Geficad (gefitinib), Gefitinib CELOGEN, Gefitinib CYNO PHARMACEUTICALS, Gefitinib HETERO, Gefitinib LABORATORIOS INDUQUIMICA, Gefitinib MARKSANS, Gefitinib MISSION VIVACARE, Gefitinib NAPROD, Gefitinib SALIUS, Gefitinib SAVA, Gefitinib SRS PHARMA, Gefitinib UNITED BIOTECH, Gefitoz (gefitinib), GefiTrust (gefitinib), Gefnib (gefitinib), Geftex (gefitinib), Geftib (gefitinib), Gefticip (gefitinib), Geftifos (gefitinib), Geftiget (gefitinib), Geftin (gefitinib), Geftinat NATCO (gefitinib), Geftinat RADIANCE (gefitinib), Geftistar (gefitinib), Genasense (oblimersen sodium), G13000, Gilotrif (aftinib), GSK2136773, HC15, HD201 (trastuzumab), HE39, HER-1 therapeutic cancer vaccine BIOVEN, HER1 Cancer Vaccine, HER2 BiTE Antibody AMGEN, Herzuma (trastuzumab), HK1357, HM60390, HM61713, HM78136B (poziotinib), HMPL309 (theliatinib), HMPL504 (volitinib), HMPL813 (epitinib), HuMax-EGFr (zalutumumab), HyERB (cetuximab), ICS283, Imatinib Ecker hydrochloride, Imbruvica (ibrutinib), IMC11F8 (necitumumab), IMCA12 (cixutumumab), IMGN289, INC280, INCB7839 (aderbasib), Inlyta (axitinib), Iressa (gefitinib), ISU101 (cetuximab), JNJ26483327, JNJ28871063, JX929, Kabigef (gefitinib), KD019, KD020, KHK2866, KRN633, KRN951 (tivozanib), KSB102, KT6587, Lapatinib AQVIDA, Lapatinib ditosylate, Lapatinib SRS PHARMA, Lefibenz (gefitinib), Lortinib (erlotinib), LY2875358 (emibetuzumab), MabionEGFR (cetuximab), MDP01, MDX214 (CD89 monoclonal antibody), MDX447, Meftinib (gefitinib), MEHD7945A, Menadione TALON, MGCD265, mir-7 mimetic SILENCE, MM121, MM151, MP412, MP470 (amuvatinib), MT062, Novel Tyrosine kinase Inhibitor MEBIOPHARM, NT004, NT113, ORIL003, ORIL007, OS1632, Panitumumab BIOXPRESS THERAPEUTICS (panitumumab), Panitumumab PANPHARMACEUTICALS, PB272 (neratinib), PB11737, PB14050, Perjeta (pertuzumab), PF00299804 (dacomitinib), PK1166, PM92102 (kahalalide F), RadioTheraCIM, RAF and HER inhibitors DECIPHERA, RBLX200, RC3095, Reglycosylated Cetuximab FOUNTAIN BIOPHARM, RG3638 (onartuzumab), RG7160 (imgatuzumab), RX1792, S222611, SAB-Y1 SYNTAB, Sai Pu Ting, SAI-EGFR-ECD MICROMET, SAR103168, SC100, Selatinib Ditosilate QILU, Selective EGFR Inhibitors VICHEM, SL175, SL176, SL433, SL461, SL634, SRXMs MAXOCARE, STIA020X, STIA050X, Stivarga (regorafenib), STP523, STP801, Stridessa (gefitinib), Surrobody Drug Conjugate SEA LANE, Sym004, Sym013, TaiXinSheng (nimotuzumab), TAK285, Tarceva (erlotinib hydrochloride), Targretin (bexarotene), TAS2913, TG03 (apricoxib), TGF therapeutic cancer vaccine BIOVEN, TGF-alpha Cancer Vaccine MICROMET, Trastuzumab ZENOTECH, Trisilensa, Trispecific Anti-Her1/Her3 Zybodies ZYNGENIA (cetuximab), Tykerb (lapatinib ditosylate), Tyrogef, Tyrokinin 100 (erlotinib hydrochloride), U31287 (partitumab), Ultragef (gefitinib), VCC395122, VCC868449, Vectibix (panitumumab), V114442, Xefta (gefitinib), YMB1005, Zefotib (gefitinib), and Zufinib (gefitinib).
The anticancer drug targeting the RAS/RAF/MEK/ERK signal pathway is selected from the group consisting of: Dabrafenib, GSK2118436, LGX818, Vemurafenib, RAF265, R05126766, Sorafenib, XL281 (Raf inhibitor); ARRY-300, AZD8330, E6201, PD-0325901, R04987655, Bimetinib (ARRY-162/MEK162), Cobimetinib (GDC-0973/XL518), Refametinib (BAY86-9766/RDEA119), Pisasertib (AS703026), Selumetinib (AZD6244/ARRY-142886), TAK-733, Trametinib (GSK1120212) (MEK inhibitor), BVD-523, and MK8553 (ERK inhibitor).
The anticancer drug targeting PI3K/AKT/mTOR signal pathway is selected from the group consisting of: BGT226, BEZ235, GDC-0980, GSK2126458, PF-04691502, PF-05212384/PKI-587, SF1126, XL765/SAR245409, BKM120, BYL719, CAL-101, GDC-0032, GDC-0941, GSK2636771, IPI-145, NVP-BEZ235, PX866, XL147 (PI3K inhibitor); Erucylphosphocholine, GSK2141795, GSK690693, Miltefosine, MK2206, PBI-05204, Perifosine, RX-0201, SR13668, and XL-418 (AKT inhibitor); AZD2014, AZD8055, CC-223, Everolimus (RAD001), Ridaforolimus (MK-8669), OSI-027, Sirolimus (Rapamycin), Temsirolmus (Torisel®, CCI-779) (mTOR inhibitor).
The anticancer drug targeting JAK/STAT signal pathway is JAK kinase inhibitor or STAT inhibitor. JAK kinase inhibitor has inhibitory activity against JAK1, JAK2, and/or JAK3 and is selected from the group consisting of ABT-494, AT9283, atiprimod dihydrochloride, AZD1480, Baricitinib, BMS-911543, CP 690550, Cucurbitacin I, Decernotinib, Filgotinib, Gandotinib, GSK2586184, Itacitinib (INCB039110), INCB018424, INCB047986, INCB052793, Lestaurtinib, Momelotinib (CYT387), NS-018, NSC 33994, Pacritinib, Peficitinib, Ruxolitinib (Jakafi), PF-04965842, SD 1008, Tofacitinib, Upadacitinib, XL019, and WP1066.
STAT inhibitor has inhibitory activity against STATs 1, 2, 3, 4, 5a, 5b, and 6, in particular STAT3 and STAT5b and is selected from the group consisting of AZD9150, Capsaicin, CPA-1, CPA-7, FLLL11, FLLL12, FLLL32, FLLL62, IS3295, JQ1, OPB-111077, OPB-31121, OPB-51602 and pimozide.
Pharmaceutical Composition
The pharmaceutical compositions according to the present invention comprise at least one compound according to the present invention as an active ingredient together with at least one pharmaceutically acceptable (i.e. non-toxic) carrier, excipient and/or diluent. The pharmaceutical compositions of the present invention can be prepared in a conventional solid or liquid carrier or diluent and a conventional pharmaceutically made adjuvant at suitable dosage level in a known way. The preferred preparations are adapted for oral application. These administration forms include, for example, pills, tablets, film tablets, coated tablets, capsules, powders and deposits.
Optionally, the pharmaceutical compositions according to the present invention comprise further at least one anticancer drug. The at least one anticancer is anticancer drug inhibting EGFR/HER2 tyrosine kinases, anticancer drug targeting the RAS/RAF/MEK/ERK signal pathway, anticancer drug targeting PI3K/AKT/mTOR signal pathway, and/or anticancer drug targeting JAK/STAT signal pathway as defined above.
Furthermore, the present invention also includes pharmaceutical preparations for parenteral application, including dermal, intradermal, intragastral, intracutaneous, intravasal, intravenous, intramuscular, intraperitoneal, intranasal, intravaginal, intrabuccal, percutan, rectal, subcutaneous, sublingual, topical, or transdermal application, which preparations in addition to typical vehicles and/or diluents contain at least one compound according to the present invention and/or a pharmaceutical acceptable salt thereof as active ingredient.
The pharmaceutical compositions according to the present invention containing at least one compound according to the present invention and/or a pharmaceutical acceptable salt thereof as active ingredient will typically be administered together with suitable carrier materials selected with respect to the intended form of administration, i.e. for oral administration in the form of tablets, capsules (either solid filled, semi-solid filled or liquid filled), powders for constitution, gels, elixirs, dispersable granules, syrups, suspensions, and the like, and consistent with conventional pharmaceutical practices. For example, for oral administration in the form of tablets or capsules, the active drug component may be combined with any oral non-toxic pharmaceutically acceptable carrier, preferably with an inert carrier like lactose, starch, sucrose, cellulose, magnesium stearate, dicalcium phosphate, calcium sulfate, talc, mannitol, ethyl alcohol (liquid filled capsules) and the like. Moreover, suitable binders, lubricants, disintegrating agents and coloring agents may also be incorporated into the tablet or capsule. Powders and tablets may contain about 5 to about 95-weight % of the derivatives according to the general formula (I) or analogues compound thereof or the respective pharmaceutically active salt as active ingredient.
Suitable binders include starch, gelatin, natural sugars, corn sweeteners, natural and synthetic gums such as acacia, sodium alginate, carboxymethylcellulose, polyethylene glycol and waxes. Among suitable lubricants there may be mentioned boric acid, sodium benzoate, sodium acetate, sodium chloride, and the like. Suitable disintegrants include starch, methylcellulose, guar gum, and the like. Sweetening and flavoring agents as well as preservatives may also be included, where appropriate. The disintegrants, diluents, lubricants, binders etc. are discussed in more detail below.
Moreover, the pharmaceutical compositions of the present invention may be formulated in sustained release form to provide the rate controlled release of any one or more of the components or active ingredients to optimise the therapeutic effect(s), e.g. anticancer activity or activity against cancer metastases and the like. Suitable dosage forms for sustained release include tablets having layers of varying disintegration rates or controlled release, polymeric matrices impregnated with the active components and shaped in tablet form or capsules containing such impregnated or encapsulated porous polymeric matrices.
Liquid form preparations include solutions, suspensions, and emulsions. As an example, there may be mentioned water or water/propylene glycol solutions for parenteral injections or addition of sweeteners and opacifiers for oral solutions, suspensions, and emulsions. Liquid form preparations may also include solutions for intranasal administration.
Aerosol preparations suitable for inhalation may include solutions and solids in powder form, which may be present in combination with a pharmaceutically acceptable carrier such as an inert, compressed gas, e.g. nitrogen.
For preparing suppositories, a low melting wax, such as a mixture of fatty acid glycerides like cocoa butter is melted first, and the active ingredient is then dispersed homogeneously therein e.g. by stirring. The molten, homogeneous mixture is then poured into conveniently sized moulds, allowed to cool, and thereby solidified.
Also included are solid form preparations, which are intended to be converted, shortly before use, to liquid form preparations for either oral or parenteral administration. Such liquid forms include solutions, suspensions, and emulsions.
The compounds according to the present invention may also be delivered transdermally. The transdermal compositions may have the form of a cream, a lotion, an aerosol and/or an emulsion and may be included in a transdermal patch of the matrix or reservoir type as is known in the art for this purpose.
The term capsule as recited herein refers to a specific container or enclosure made e.g. of methylcellulose, polyvinyl alcohols, or denatured gelatins or starch for holding or containing compositions comprising the active ingredient(s). Capsules with hard shells are typically made of blended of relatively high gel strength gelatins from bones or pork skin. The capsule itself may contain small amounts of dyes, opaquing agents, plasticisers and/or preservatives.
Under tablet a compressed or moulded solid dosage form is understood which comprises the active ingredients with suitable diluents. The tablet may be prepared by compression of mixtures or granulations obtained by wet granulation, dry granulation, or by compaction well known to a person of ordinary skill in the art.
Oral gels refer to the active ingredients dispersed or solubilised in a hydrophilic semi-solid matrix.
Powders for constitution refers to powder blends containing the active ingredients and suitable diluents which can be suspended e.g. in water or in juice.
Suitable diluents are substances that usually make up the major portion of the composition or dosage form. Suitable diluents include sugars such as lactose, sucrose, mannitol, and sorbitol, starches derived from wheat, corn, rice, and potato, and celluloses such as microcrystalline cellulose. The amount of diluent in the composition can range from about 5 to about 95% by weight of the total composition, preferably from about 25 to about 75 weight %, and more preferably from about 30 to about 60 weight %.
The term disintegrants refers to materials added to the composition to support break apart (disintegrate) and release the pharmaceutically active ingredients of a medicament. Suitable disintegrants include starches, “cold water soluble” modified starches such as sodium carboxymethyl starch, natural and synthetic gums such as locust bean, karaya, guar, tragacanth and agar, cellulose derivatives such as methylcellulose and sodium carboxymethylcellulose, microcrystalline celluloses, and cross-linked microcrystalline celluloses such as sodium croscaramellose, alginates such as alginic acid and sodium alginate, clays such as bentonites, and effervescent mixtures. The amount of disintegrant in the composition may range from about 2 to about 20 weight % of the composition, more preferably from about 5 to about 10 weight %.
Binders are substances which bind or “glue” together powder particles and make them cohesive by forming granules, thus serving as the “adhesive” in the formulation. Binders add cohesive strength already available in the diluent or bulking agent. Suitable binders include sugars such as sucrose, starches derived from wheat, corn, rice and potato, natural gums such as acacia, gelatin and tragacanth, derivatives of seaweed such as alginic acid, sodium alginate and ammonium calcium alginate, cellulose materials such as methylcellulose, sodium carboxymethylcellulose and hydroxypropylmethylcellulose, polyvinylpyrrolidone, and inorganic compounds such as magnesium aluminum silicate.
The amount of binder in the composition may range from about 2 to about 20 weight % of the composition, preferably from about 3 to about 10 weight %, and more preferably from about 3 to about 6 weight %.
Lubricants refer to a class of substances which are added to the dosage form to enable the tablet granules etc. after being compressed to release from the mould by reducing friction or wear. Suitable lubricants include metallic stearates such as magnesium stearate, calcium stearate, or potassium stearate, stearic acid, high melting point waxes, and other water soluble lubricants such as sodium chloride, sodium benzoate, sodium acetate, sodium oleate, polyethylene glycols and D,L-leucine. Lubricants are usually added at the very last step before compression, since they must be present at the surface of the granules. The amount of lubricant in the composition may range from about 0.2 to about 5 weight % of the composition, preferably from about 0.5 to about 2 weight %, and more preferably from about 0.3 to about 1.5 weight % of the composition.
Glidents are materials that prevent caking of the components of the pharmaceutical composition and improve the flow characteristics of granulate so that flow is smooth and uniform. Suitable glidents include silicon dioxide and talc. The amount of glident in the composition may range from about 0.1 to about 5 weight % of the final composition, preferably from about 0.5 to about 2 weight %.
Coloring agents are excipients that provide coloration to the composition or the dosage form. Such excipients can include food grade dyes adsorbed onto a suitable adsorbent such as clay or aluminum oxide. The amount of the coloring agent may vary from about 0.1 to about 5 weight % of the composition, preferably from about 0.1 to 1 weight %.
The compounds of the present invention are suitable for use in medicine, particularly in human medicine, but also in veterinary medicine. The dosage of the compounds may be determined by a skilled practitioner according to the type and severity of the disorder to be treated.
The compounds of the present invention may be adminstered as a monotherapy or together with further active agents, particularly chemotherapeutic agents or antitumor antibodies. Furthermore they may be used in combination with surgery and/or irradiation.
General Information:
All reactions involving air- or moisture-sensitive reagents or intermediates were carried out in flame-dried glassware under an argon atmosphere. Dry solvents (THF, toluene, MeOH, DMF, DCM) were used as commercially available. 1H-NMR and 13C-NMR were recorded on a Bruker DRX400 (400 MHz). Multiplicities are indicated as: br s (broadened singlet), s (singlet), d (doublet), t (triplet), q (quartet), quin (quintet), m (multiplet); and coupling constants (J) are given in Hertz (Hz). HPLC—electrospray mass spectra (HPLC ES-MS) were obtained using Waters Acquity Performance Liquid Chromatography (UPLC) equipped SQ 3100 Mass detector spectrometer. Column: Acquity UPLC BEH C18 1.7 um, 2.1×50 mm. Flow: 0.5 ml/min. Eluents: A: H2O with 0.05% formic acid and B: ACN with 0.05% TFA. All chemicals and solvents were purchased from commercial sources like Sigma-Aldrich, Fluka, TCI, Acros Organics, ABCR, Alfa Aesar, Enamine, VWR, Combi-Blocks, Apollo Scientific, Aquilla Pharmatech, Ark Pharm, D-L Chiral Chemicals, ChemBridge, Renno Tech, Accela, KeyOrganics, Pharmablock and Chem Impex. Unless otherwise noted, all commercially available compounds were used as received without further purifications.
ACN (acetonitrile); br (broad); CDCl3 (deuterated chloroform); cHex (cyclohexane); DCM (dichloromethane); DIPEA (di-iso-propylethylamine); DMF (dimethylformamide); DMSO (dimethyl sulfoxide); eq. (equivalent); ES (electrospray); EtOAc (ethyl acetate); EtOH (ethanol); HATU (O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate); HCl (hydrochloric acid); HOAc (acetic acid); H2O (water); K2CO3 (potassium carbonate); KOH (potassium hydroxide); MeOH (methanol); MS (mass spectrometry); Mwt (molecular weight); NaHCO3 (sodium hydrogencarbonate); NH3 (ammonia); NH4Cl (ammonium chloride); NIS (N-Iodosuccinimide); NMP (N-methyl-2-pyrrolidon); NMR (nuclear magnetic resonance); Pd(dppf)Cl2 ([1,1′-bis(diphenylphosphino)ferrocene]dichloro palladium(II) complex with dichloromethane); iPrOH (iso-propanol); PyBroP (Bromotripyrrolidinophosphonium hexafluorophosphate); RP (reversed-phase); RT (room temperature); sat. aq. (saturated aqueous); SiO2 (silica gel); TFA (trifluoroacetic acid); THF (tetrahydrofurane).
4-Chloro-3-iodopyridine-2-amine (5.0 g, 19.0 mmol, 1.0 eq.), trimethyl((4-methyl-3-nitrophenyl)ethynyl)silane (5.7 g, 25.0 mmol, 1.25 eq.), 1,4-diazabicyclo[2.2.2]octane (3.6 g, 32.3 mmol, 1.7 eq.) and dichlorobis(triphenylphosphine)palladium(II) (1.4 g, 2.0 mmol, 0.1 eq.) in dry DMF (40 mL) under N2 atmosphere was splitted in three microwave vials. Each vial was heated in the microwave at 145° C. for 2 h. EtOAc (250 mL) was added and the organic phase was washed three times with aq. sat. NaHCO3-solution. The organic phase was dried over MgSO4 and solvents were removed in vacuo. The crude product was purified by flash chromatography on silica gel (cHex/EtOAc=100:0 to 1:1) to yield the desired product A1 (3.9 g, 10.8 mmol, 57%) as a beige solid. 1H NMR (400 MHz, d6-DMSO, 300K) δ 0.11 (s, 9H), 2.58 (s, 3H), 7.12 (d, J=5.0 Hz, 1H), 7.52 (d, J=7.9 Hz, 1H), 7.63 (d, J=7.9 Hz, 1H), 7.91 (s, 1H), 8.21 (d, J=5.0 Hz, 1H), 12.04 (s, 1H). MS (ES) C17H18ClN3O2Si requires: 359, found: 360 (M+H)+.
A solution of 4-chloro-3-(4-methyl-3-nitrophenyl)-2-(trimethylsilyl)-1H-pyrrolo[2,3-b]pyridine A1 (5.6 g, 15.56 mmol, 1.0 eq.) and iron (4.3 g, 77.8 mmol, 5 eq.) in EtOH (100 mL) and aq. sat. NH4Cl-solution (10 mL) was stirred for 5 h at 80° C. The solution was filtered through a pad of Celite®. Solvents were removed in vacuo. The crude was solved in EtOAc and washed twice with aq. sat. NaHCO3-solution. The organic phase was dried over MgSO4 and solvent was removed in vacuo. The crude product was purified by flash chromatography on silica gel (cHex/EtOAc=100:0 to 0:100) to yield the desired product A2 (5.0 g, 15.2 mmol, 97%) as a beige solid. 1H NMR (400 MHz, d6-DMSO, 300K) δ 0.10 (s, 9H), 2.10 (s, 3H), 4.76 (br s, 2H), 6.44 (d, J=7.4 Hz, 1H), 6.60 (s, 1H), 6.89 (d, J=7.4 Hz, 1H), 7.04 (d, J=5.1 Hz, 1H), 8.15 (d, J=5.1 Hz, 1H), 11.71 (s, 1H). MS (ES) C17H20ClN3Si requires: 329, found: 330 (M+H)+.
A3 was prepared either by Procedure A or Procedure B:
Procedure A:
To a solution of A2 (2760 mg, 8.4 mmol, 1.0 eq.) and DIPEA (14.6 mL, 84.0 mmol, 10.0 eq.) in dry DCM (100 mL) at 0° C. was added slowly acrylolyl chloride (757 mg, 8.4 mmol, 1.0 eq.) in dry DCM (5 mL). The mixture was stirred for 5 min. The solution was diluted with EtOAc and washed twice with aq. sat. NaHCO3-solution. The organic phase was dried over MgSO4 and solvent was removed in vacuo. The crude product was purified by flash chromatography on silica gel (cHex/EtOAc=100:0 to 1:1) to yield the desired product A3 (3070 mg, 8.0 mmol, 95%) as a white solid. 1H NMR (400 MHz, d6-DMSO, 300K) δ 0.11 (s, 9H), 2.28 (s, 3H), 5.72 (dd, J=2.1 Hz, J=10.2 Hz, 1H), 6.22 (dd, J=2.1 Hz, J=16.9 Hz, 1H), 6.55 (dd, J=10.2 Hz, J=16.9 Hz, 1H), 7.07 (m, 2H), 7.22 (d, J=7.7 Hz, 1H), 7.56 (s, 1H), 8.17 (d, J=5.0 Hz, 1H), 9.42 (s, 1H), 11.83 (s, 1H). MS (ES) C20H22ClN3OSi requires: 383, found: 384 (M+H)+.
Procedure B:
To a solution of HATU (3460 mg, 9.1 mmol, 1.5 eq.) in DMF (10 mL) at 0° C. was added acrylic acid (655 mg, 9.1 mmol, 1.5 eq.) and DIPEA (1548 mg, 9.1 mmol, 2.0 eq.). The mixture was stirred for 15 min. Then A2 (2000 mg, 6.0 mmol, 1.0 eq.) was added and the mixture was stirred for 4 h at 0° C. The solution was diluted with EtOAc and washed twice with aq. sat. NaHCO3-solution. The organic phase was dried over MgSO4 and solvent was removed in vacuo. The crude product was purified by flash chromatography on silica gel (cHex/EtOAc=100:0 to 1:1) to yield the desired product A3 (890 mg, 2.3 mmol, 39%) as a white solid. MS (ES) C20H22ClN3OSi requires: 383, found: 384 (M+H)+.
N-(5-(4-chloro-2-(trimethylsilyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide A3 (890 mg, 2.32 mmol, 1.0 eq.) and N-iodosuccinimide (937 mg, 4.18 mmol, 1.8 eq.) were solved in dry dichloromethane (300 mL) and stirred for 15 h at RT. The organic phase was washed once with aq. sat. Na2S2O3-sol. and three times with aq. sat. NaHCO3-solution. The organic phase was dried over Na2SO4 and solvents were removed in vacuo yielding the desired product A4 (970 mg, 2.21 mmol, 95%) as a yellow solid. The crude was used without purification in the next step. MS (ES) C17H13ClIN3O requires: 437, found: 438 (M+H)+.
A mixture of N-(5-(4-chloro-2-iodo-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide A4 (40 mg, 0.09 mmol, 1.0 eq.), {4-[(4-methylpiperazin-1-yl)methyl]phenyl}boronic acid dihydrochloride (32 mg, 0.14 mmol, 1.5 eq.), and K3PO4 (38 mg, 0.18 mmol, 2.0 eq) in dioxane/H2O (3 mL/0.6 mL) was degassed with a stream of N2 for 5 min. [1,1′-Bis(diphenylphosphino)ferrocene]palladium dichloride dichloromethane adduct (8 mg, 0.01 mmol, 0.1 eq) was added and the reaction mixture heated to 130° C. for 2 h in the microwave oven. The reaction mixture was diluted with EtOAc, washed three times with aq. sat. NaHCO3-solution. The organic phase was dried over MgSO4 and solvents were removed in vacuo. The crude was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound A5 (5 mg, 0.01 mmol, 8%) as a yellow powder. 1H NMR (400 MHz, CDCl3, 300K) δ 12.45 (s, 1H), 9.44 (s, 1H), 8.16 (dd, J=1.3 Hz, J=5.2 Hz, 1H), 7.52 (s, 1H), 7.44 (d, J=7.9 Hz, 2H), 7.25 (d, J=7.9 Hz, 2H), 7.20 (d, J=7.8 Hz, 1H), 7.10 (dd, J=1.3 Hz, J=5.2 Hz, 1H), 7.04 (d, J=7.8 Hz, 1H), 6.51 (dd, J=10.1 Hz, J=17.1 Hz, 1H), 6.17 (d, J=17.1 Hz, 1H), 5.70 (d, J=10.1 Hz, 1H), 3.58 (s, 2H), 3.01-2.89 (m, 4H), 2.74 (s, 3H), 2.65 (m, 2H), 2.31 (m, 2H), 2.25 (s, 3H). MS (ES) C29H30ClN5O requires: 500, found: 501 (M+H)+.
The Examples in the following table were prepared according to the procedure described for A5 (Example 1).
A mixture of N-(5-(4-chloro-2-iodo-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide A4 (500 mg, 1.14 mmol, 1.0 eq.), 3-carboxyphenylboronic acid (284 mg, 1.71 mmol, 1.5 eq.), and K3PO4 (483 mg, 2.28 mmol, 2.0 eq) in dioxane/H2O (15 mL/3 mL) was degassed with a stream of N2 for 5 min. [1,1′-Bis(diphenylphosphino)ferrocene]palladium dichloride dichloromethane adduct (93 mg, 0.11 mmol, 0.1 eq) was added and the reaction mixture heated to 130° C. for 2 h in the microwave oven. Solvents were removed and the crude was purified by flash chromatography on silica gel (DCM/MeOH=100:0 to 0:100) to yield the desired product B1 (200 mg, 0.46 mmol, 41%) as a beige solid. MS (ES) C24H18ClN3O3 requires: 431, found: 432 (M+H)+.
To a solution of B1 (10 mg, 0.02 mmol, 1.0 eq.) and HATU (18 mg, 0.05 mmol, 2.0 eq.) in DMF (2 mL) at 0° C. was added 1-methylpiperazine (4 mg, 0.03 mmol, 1.5 eq.) and DIPEA (20 uL, 0.11 mmol, 5.0 eq.). The mixture was stirred for 1 h. The reaction mixture was diluted with EtOAc, washed three times with aq. sat. NaHCO3-solution. The organic phase was dried over MgSO4 and solvents were removed in vacuo. The crude was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound B2 (3 mg, 0.003 mmol, 14%) as a yellow powder. 1H NMR (400 MHz, MeOD, 300K) δ 8.17 (d, J=5.3 Hz, 1H), 7.77 (d, J=7.9 Hz, 1H), 7.57 (t, J=7.7 Hz, 1H), 7.46 (d, J=7.7 Hz, 1H), 7.40 (m, 2H), 7.25 (d, J=7.7 Hz, 1H), 7.12 (m, 2H), 6.50 (dd, J=10.2 Hz, J=17.0 Hz, 1H), 6.35 (d, J=17.0 Hz, 1H), 5.80 (d, J=10.2 Hz, 1H), 3.54-2.80 (m, 8H), 2.95 (s, 3H), 2.32 (s, 3H). MS (ES) C29H28ClN5O2 requires: 513, found: 514 (M+H)+.
The Examples in the following table were prepared according to the procedure described for B2 (Example 44).
C1 (1.0 g, 2.26 mmol, 76%, beige solid) was prepared from 4-chloro-3-iodopyridine-2-amine and tert-butyl 6-((trimethylsilyl)ethynyl)indoline-1-carboxylate following the general procedure reported in Preparative Example 1 Step 1. MS (ES) C23H28ClN3O2Si requires: 441, found: 442 (M+H)+.
Tert-butyl 6-(4-chloro-2-(trimethylsilyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)indoline-1-carboxylate C1 (1.0 g, 2.26 mmol) in 30% TFA in DCM (60 mL) at RT was stirred for 2 h. Evaporation of the solvents yielded the desired product C2 as beige solid, which was used in the next step without purification. MS (ES) C18H20ClN3Si requires: 341, found: 342 (M+H)+.
C3 (50 mg, 0.13 mmol, 6%, beige solid) was prepared from C2 following the general procedure reported in Preparative Example 1 Step 3 Procedure A. MS (ES) C21H22ClN3OSi requires: 395, found: 396 (M+H)+.
C4 (51 mg, 0.11 mmol, 84%, yellow solid) was prepared from C3 following the general procedure reported in Preparative Example 1 Step 4. MS (ES) C18H13ClIN3O requires: 448, found: 449 (M+H)+.
C5 was prepared from C4 following the general procedure reported in Preparative Example 1 Step 5. The crude was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound C5 (10 mg, 0.01 mmol, 12%) as a yellow solid. 1H NMR (400 MHz, d4-MeOD, 300K) δ 1.92 (m, 3H), 2.10 (d, J=13.6 Hz, 2H), 2.85 (m, 1H), 2.91 (s, 3H), 3.15 (m, 3H), 3.59 (d, J=10.3 Hz, 2H), 4.31 (t, J=8.5 Hz, 2H), 5.82 (d, J=10.6 Hz, 1H), 6.33 (d, J=16.8 Hz, 1H), 6.76 (dd, J=10.6 Hz, J=16.8 Hz, 1H), 7.05 (d, J=7.7 Hz, 1H), 7.10 (d, J=5.2 Hz, 1H), 7.30-7.19 (m, 3H), 7.46 (d, J=8.1 Hz, 2H), 7.71 (d, J=8.1 Hz, 1H), 8.12 (d, J=5.2 Hz, 1H), 8.25 (s, 1H). MS (ES) C30H29ClN4O requires: 496, found: 497 (M+H)+.
The Examples in the following table were prepared according to the procedure described for C5 (Example 55).
D1 (3.50 g, 9.86 mmol, 38%, beige solid) was prepared from 3-iodo-4-methoxypyridin-2-amine and trimethyl((4-methyl-3-nitrophenyl)ethynyl)silane following the general procedure reported in Preparative Example 1 Step 1. MS (ES) C18H21N3O3Si requires: 355, found: 356 (M+H)+.
A solution of D1 (2.5 g, 7 mmol, 1 eq.) and iron (1.9 g, 35 mmol, 5 eq.) in EtOH (100 mL) and aq. sat. NH4Cl-solution (10 mL) was stirred for 5 h at 80° C. The solution was filtered through a pad of Celite®. Solvents were removed in vacuo. The crude was solved in EtOAc and washed twice with aq. sat. NaHCO3-solution. The organic phase was dried over MgSO4 and solvent was removed in vacuo. The crude product was purified by flash chromatography on silica gel (cHex/EtOAc=100:0 to 0:100) to yield the desired product D2 (1.0 g, 3.1 mmol, 44%) as a beige solid. MS (ES) C18H23N3OSi requires: 325, found: 326 (M+H)+.
D3 (712 mg, 1.87 mmol, 40%, white solid) was prepared from D2 following the general procedure reported in Preparative Example 1 Step 3 Procedure A. MS (ES) C21H25N3O2Si requires: 379, found: 380 (M+H)+.
D4 (512 mg, 1.18 mmol, 66%, yellow solid) was prepared from D3 following the general procedure reported in Preparative Example 1 Step 4. MS (ES) C18H16IN3O2 requires: 433, found: 434 (M+H)+.
D5 was prepared from D4 following the general procedure reported in Preparative Example 1 Step 5. The crude was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound D5 (2 mg, 0.01 mmol, 3%) as a yellow solid. 1H NMR (400 MHz, d4-MeOD, 300K) δ 2.30 (s, 3H), 2.96 (s, 3H), 3.08 (m, 2H), 3.26 (m, 2H), 3.57 (m, 2H), 3.91 (m, 2H), 3.98 (s, 3H), 5.78 (dd, J=10.2 Hz, J=1.5 Hz, 1H), 6.34 (dd, J=17.0 Hz, J=1.5 Hz, 1H), 6.51 (dd, J=10.2 Hz, J=17.0 Hz, 1H), 6.99 (d, J=8.8 Hz, 2H), 7.03 (d, J=6.7 Hz, 1H), 7.08 (d, J=8.1 Hz, 1H), 7.19 (d, J=7.8 Hz, 1H), 7.38 (d, J=8.8 Hz, 2H), 7.46 (s, 1H), 8.22 (d, J=7.6 Hz, 1H). MS (ES) C29H31N5O2 requires: 481, found: 482 (M+H)+.
The Examples in the following table were prepared according to the procedure described for D5 (Example 72).
2-Amino-3-iodopyridine (5.65 g, 25.71 mmol, 1.2 eq.), trimethyl((4-methyl-3-nitrophenyl)ethynyl)silane (5.00 g, 21.43 mmol, 1.0 eq.), 1,4-diazabicyclo[2.2.2]octane (4.08 g, 32.3 mmol, 1.7 eq.) and dichlorobis(triphenylphosphine)palladium(II) (1.51 g, 2.14 mmol, 0.1 eq.) in dry DMF (40 mL) under N2 atmosphere was splitted in three microwave vials. Each vial was heated in the microwave at 145° C. for 2 h. EtOAc (250 mL) was added and the organic phase was washed three times with aq. sat. NaHCO3-solution. The organic phase was dried over MgSO4 and solvents were removed in vacuo. The crude product was purified by flash chromatography on silica gel (DCM/MeOH=100:0 to 10:1) to yield the desired product E1 (4.96 g, 10.25 mmol, 71%) as an orange solid. MS (ES) C17H19N3O2Si requires: 325, found: 326 (M+H)+.
A solution of 3-(4-methyl-3-nitrophenyl)-2-(trimethylsilyl)-1H-pyrrolo[2,3-b]pyridine E1 (4.96 g, 15.24 mmol, 1.0 eq.) and iron (8.51 g, 152.4 mmol, 10 eq.) in EtOH (100 mL) and aq. sat. NH4Cl-solution (20 mL) was stirred for 15 h at 80° C. The solution was filtered through a pad of Celite®. Solvents were removed in vacuo. The crude was solved in EtOAc and washed twice with aq. sat. NaHCO3-solution. The organic phase was dried over MgSO4 and solvent was removed in vacuo. The crude product (3.04 g, 10.3 mmol, 68%, orange solid) was used without further purification in the next step. MS (ES) C17H21N3Si requires: 295, found: 296 (M+H)+.
To a solution of E2 (1000 mg, 3.38 mmol, 1.0 eq.) and DIPEA (2.96 mL, 16.92 mmol, 5.0 eq.) in dry DCM (100 mL) at 0° C. was added slowly acrylolyl chloride (306 mg, 3.38 mmol, 1.0 eq.) in dry DCM (5 mL). The mixture was stirred for 30 min. The solution was diluted with EtOAc and washed twice with aq. sat. NaHCO3-solution. The organic phase was dried over MgSO4 and solvent was removed in vacuo. The crude product was purified by flash chromatography on silica gel (cHex/EtOAc=100:0 to 1:2) to yield the desired product E3 (498 mg, 1.43 mmol, 42%) as a white solid. MS (ES) C20H23N3OSi requires: 349, found: 350 (M+H)+.
N-(2-methyl-5-(2-(trimethylsilyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)phenyl)acrylamide E3 (497 mg, 1.42 mmol, 1.0 eq.) and N-iodosuccinimide (576 mg, 2.56 mmol, 1.8 eq.) were solved in dry dichloromethane (100 mL) and stirred for 15 h at RT. The organic phase was washed once with aq. sat. Na2S2O3-solution and three times with aq. sat. NaHCO3-solution. The organic phase was dried over Na2SO4 and solvents were removed in vacuo yielding the desired product E4 (337 mg, 0.84 mmol, 59%) as a yellow solid. The crude was used without purification in the next step. MS (ES) C17H14IN3O requires: 403, found: 404 (M+H)+.
A mixture of N-(5-(2-iodo-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide E4 (50 mg, 0.12 mmol, 1.0 eq.), 2-(4-methylpiperazino)pyridine-5-boronic acid pinacol ester (49 mg, 0.16 mmol, 1.3 eq.), and K3PO4 (53 mg, 0.24 mmol, 2.0 eq) in dioxane/H2O (3 mL/0.6 mL) was degassed with a stream of N2 for 5 min. [1,1′-Bis(diphenylphosphino)-ferrocene]palladium dichloride dichloromethane adduct (10 mg, 0.01 mmol, 0.1 eq) was added and the reaction mixture heated to 110° C. for 1 h in the microwave oven. The crude solution was directly purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound E5 (22 mg, 0.03 mmol, 23%) as a yellow powder. 1H NMR (400 MHz, d6-DMSO, 300K) δ 2.27 (s, 3H), 2.85 (s, 3H), 3.12 (m, 4H), 3.51 (d, J=11.3 Hz, 2H), 4.46 (d, J=12.3 Hz, 2H), 5.76 (d, J=10.3 Hz, 1H), 6.24 (d, J=17.0 Hz, 1H), 6.57 (dd, J=10.3 Hz, J=17.0 Hz, 1H), 6.99 (m, 2H), 7.12 (dd, J=4.7 Hz, J=7.9 Hz, 1H), 7.24 (d, J=7.9 Hz, 1H), 7.67 (s, 1H), 7.72 (dd, J=2.4 Hz, J=8.7 Hz, 1H), 7.89 (d, J=7.9 Hz, 1H), 8.26 (d, J=4.7 Hz, 1H), 8.33 (d, J=2.4 Hz, 1H), 9.51 (s, 1H), 12.14 (s, 1H). MS (ES) C27H28N6O requires: 452, found: 453 (M+H)+.
The Examples in the following table were prepared according to the procedure described for E5 (Example 78).
F1 (632 mg, 1.37 mmol, 40%, beige solid) was prepared from 4-chloro-3-iodopyridine-2-amine (867 mg, 3.41 mmol, 1.0 eq.) and tert-butyl 6-((trimethylsilyl)ethynyl)-2H-benzo[b][1,4]oxazine-4(3H)-carboxylate (1.131 mg, 3.41 mmol, 1.0 eq.) following the general procedure reported in Preparative Example 1 Step 1. MS (ES) C23H28ClN3O3Si requires: 458, found: 459 (M+H)+.
Tert-butyl 6-(4-chloro-2-(trimethylsilyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2H-benzo[b][1,4]oxazine-4(3H)-carboxylate F1 (300 mg, 0.65 mmol) and N-iodosuccinimide (264 mg, 1.17 mmol, 1.8 eq.) were solved in dry dichloromethane (100 mL) and stirred for 5 h at RT. The organic phase was washed once with aq. sat. Na2S2O3-solution and three times with aq. sat. NaHCO3-solution. The organic phase was dried over Na2SO4 and solvents were removed in vacuo yielding the desired product F2 (341 mg, 0.65 mmol, 100%) as a brown solid. The crude was used without purification in the next step. MS (ES) C20H19ClIN3O3 requires: 511, found: 512 (M+H)+.
A mixture of tert-butyl 6-(4-chloro-2-iodo-1H-pyrrolo[2,3-b]pyridin-3-yl)-2H-benzo[b][1,4]oxazine-4(3H)-carboxylate F2 (341 mg, 0.65 mmol, 1.0 eq.), 4-(4-methylpiperazin-1-yl)phenylboronic acid (186 mg, 0.85 mmol, 1.3 eq.), and K3PO4 (275 mg, 1.30 mmol, 2.0 eq) in dioxane/H2O (10 mL/1 mL) was degassed with a stream of N2 for 5 min. [1,1′-Bis(diphenylphosphino)ferrocene]palladium dichloride dichloromethane adduct (53 mg, 0.06 mmol, 0.1 eq) was added and the reaction mixture heated to 130° C. for 2 h in the microwave oven. The reaction mixture was diluted with EtOAc, washed three times with aq. sat. NaHCO3-solution. The organic phase was dried over MgSO4 and solvents were removed in vacuo. The crude was solved in 30% TFA in DCM (60 mL) and stirred for 2 h at RT. Solvents were removed in vacuo. The crude product was purified by flash chromatography on silica gel (DCM/MeOH with 0.1% NEt3=100:0 to 5:1) to yield the desired product F3 (145 mg, 0.31 mmol, 49%) as a white solid. MS (ES) C26H26ClN5O requires: 459, found: 460 (M+H)+.
To a solution of F3 (29 mg, 0.063 mmol, 1.0 eq.) and DIPEA (110 uL, 0.63 mmol, 10.0 eq.) in dry DCM (4 mL) at 0° C. was added slowly acrylolyl chloride (5.1 mg, 0.057 mmol, 0.9 eq.) in dry DCM (5 mL). The mixture was stirred for 5 min. The solution was diluted with EtOAc and washed twice with aq. sat. NaHCO3-solution. The organic phase was dried over MgSO4 and solvent was removed in vacuo. The crude solution was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound F4 (24 mg, 0.03 mmol, 51%) as a yellow powder. 1H NMR (400 MHz, d4-MeOH, 300K) δ 2.96 (s, 3H), 3.06 (m, 2H), 3.25 (m, 4H), 3.59 (m, 2H), 3.92 (m, 2H), 4.34 (m, 2H), 5.38 (d, J=10.4 Hz, 1H), 6.16 (dd, J=2.0 Hz, J=16.8 Hz, 1H), 6.36 (m, 1H), 6.98 (d, J=8.3 Hz, 1H), 7.02 (d, J=8.9 Hz, 2H), 7.12 (d, J=5.4 Hz, 1H), 7.22 (d, J=8.3 Hz, 1H), 7.37 (d, J=8.9 Hz, 2H), 8.10 (d, J=5.4 Hz, 1H). MS (ES) C23H28ClN3O3Si requires: 513, found: 514 (M+H)+.
The Examples in the following table were prepared according to the procedure described for F4 (Example 83).
4-Chloro-3-iodopyridine-2-amine (1175 mg, 4.6 mmol, 1.0 eq.), tert-butyl 7-((trimethylsilyl)ethynyl)-3,4-dihydroquinoline-1(2H)-carboxylate (1522 mg, 4.6 mmol, 1.0 eq.), 1,4-diazabicyclo[2.2.2]octane (876 mg, 7.8 mmol, 1.7 eq.) and dichlorobis(triphenylphosphine)palladium(II) (351 mg, 0.4 mmol, 0.1 eq.) in dry DMF (30 mL) under N2 atmosphere was splitted in three microwave vials. Each vial was heated in the microwave at 145° C. for 2 h. The solvent was removed in vacuo. The crude product was purified by flash chromatography on silica gel (cHex/EtOAc=100:0 to 1:1) to yield the desired product G1 (1010 mg, 2.2 mmol, 48%) as a beige solid. 1H NMR (400 MHz, d6-DMSO, 300K) δ 0.09 (s, 9H), 1.39 (s, 9H), 1.87 (m, 2H), 2.79 (7, J=6.5 Hz, 2H), 3.65 (m, 2H), 6.94 (dd, J=1.7 Hz, J=7.7 Hz, 1H), 7.06 (d, J=5.1 Hz, 1H), 7.09 (d, J=7.7 Hz, 1H), 7.61 (d, J=1.7 Hz, 1H), 8.17 (d, J=5.1 Hz, 1H), 11.82 (s, 1H). MS (ES) C24H30ClN3O2Si requires: 455, found: 456 (M+H)+.
Tert-butyl 7-(4-chloro-2-(trimethylsilyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-3,4-dihydroquinoline-1(2H)-carboxylate G1 (1.0 g, 2.19 mmol) in 50% TFA in DCM (20 mL) at RT was stirred for 2 h. Evaporation of the solvents yielded the desired product G2 as brown solid, which was used in the next step without purification. MS (ES) C19H22ClN3Si requires: 355, found: 356 (M+H)+.
To a solution of G2 (2.19 mmol, 1.0 eq.) and DIPEA (2.5 mL, 14.5 mmol, 5.0 eq.) in dry DCM (40 mL) at 0° C. was added slowly acrylolyl chloride (235 mg, 2.6 mmol, 1.0 eq.) in dry DCM (5 mL). The mixture was stirred for 10 min. The solution was diluted with EtOAc and washed twice with aq. sat. NaHCO3-solution. The organic phase was dried over MgSO4 and solvent was removed in vacuo. The crude product was purified by flash chromatography on silica gel (cHex/EtOAc=100:0 to 1:1) to yield the desired product G3 (581 mg, 1.42 mmol, 65%) as a white solid. MS (ES) C22H24ClN3OSi requires: 409, found: 410 (M+H)+.
1-(7-(4-chloro-2-(trimethylsilyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-3,4-dihydroquinolin-1(2H)-yl)prop-2-en-1-one G3 (371 mg, 0.91 mmol, 1.0 eq.) and N-iodosuccinimide (366 mg, 1.63 mmol, 1.8 eq.) were solved in dry dichloromethane (300 mL) and stirred for 15 h at RT. The organic phase was washed once with aq. sat. Na2S2O3-solution and three times with aq. sat. NaHCO3-solution. The organic phase was dried over Na2SO4 and solvents were removed in vacuo yielding the desired product G4 as a yellow solid. The crude was used without purification in the next step. MS (ES) C19H15ClIN3O requires: 462, found: 463 (M+H)+.
A mixture of 1-(7-(4-chloro-2-iodo-1H-pyrrolo[2,3-b]pyridin-3-yl)-3,4-dihydroquinolin-1(2H)-yl)prop-2-en-1-one G4 (50 mg, 0.10 mmol, 1.0 eq.), 4-(4-methylpiperazin-1-yl)phenylboronic acid (31 mg, 0.14 mmol, 1.5 eq.), and K3PO4 (38 mg, 0.18 mmol, 2.0 eq) in dioxane/H2O (3 mL/0.6 mL) was degassed with a stream of N2 for 5 min. [1,1′-Bis(diphenylphosphino)ferrocene]palladium dichloride dichloromethane adduct (8 mg, 0.01 mmol, 0.1 eq) was added and the reaction mixture heated to 130° C. for 2 h in the microwave oven. The crude reaction mixture was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound G5 (22 mg, 0.03 mmol, 30%) as a yellow powder. 1H NMR (400 MHz, d6-DMSO, 300K) δ 1.92 (q, J=6.5 Hz, 2H), 2.52 (m, 2H), 2.79 (t, J=6.5 Hz, 2H), 2.85 (s, 3H), 2.96 (t, J=12.2 Hz, 2H), 3.12 (m, 2H), 3.51 (d, J=12.2 Hz, 2H), 3.75 (m, 2H), 5.22 (dd, J=2.4 Hz, J=10.2 Hz, 1H), 6.03 (dd, J=2.4 Hz, J=16.7 Hz, 1H), 6.25 (dd, J=10.2 Hz, J=16.7 Hz, 1H), 6.88 (s, 1H), 6.99 (d, J=9.0 Hz, 2H), 7.12 (d, J=5.2 Hz, 1H), 7.21 (dd, J=1.6 Hz, J=7.6 Hz, 1H), 7.28 (d, J=7.6 Hz, 1H), 7.31 (d, J=9.0 Hz, 2H), 8.15 (d, J=5.2 Hz, 1H), 12.40 (s, 1H). MS (ES) C30H30ClN5O requires: 511, found: 512 (M+H)+.
The Examples in the following table were prepared according to the procedure described for G5 (Example 86).
A mixture of N-(5-(4-chloro-2-iodo-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methylphenyl)acrylamide A4 (100 mg, 0.22 mmol, 1.0 eq.), 4-(4-boc-piperazino)phenylboronic acid (105 mg, 0.34 mmol, 1.5 eq.), and K3PO4 (97 mg, 0.44 mmol, 2.0 eq) in dioxane/H2O (3 mL/0.6 mL) was degassed with a stream of N2 for 5 min. [1,1′-bis(diphenylphosphino)ferrocene]palladium dichloride dichloromethane adduct (19 mg, 0.02 mmol, 0.1 eq) was added and the reaction mixture heated to 130° C. for 2 h in the microwave oven. The reaction mixture was diluted with EtOAc, washed three times with aq. sat. NaHCO3-solution. The organic phase was dried over MgSO4 and solvents were removed in vacuo. The crude product was purified by flash chromatography on silica gel (cHex/EtOAc=100:0 to 0:100) to yield the desired product H1 (41 mg, 0.07 mmol, 32%) as a beige solid. MS (ES) C32H34ClN5O3 requires: 571, found: 572 (M+H)+.
Tert-butyl 4-(4-(3-(3-acrylamido-4-methylphenyl)-4-chloro-1H-pyrrolo[2,3-b]pyridin-2-yl)phenyl)piperazine-1-carboxylate H1 (41 mg, 0.07 mmol) in 30% TFA in DCM (5 mL) at RT was stirred for 2 h. After evaporation of the solvents, the crude was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound H2 (18 mg, 0.02 mmol, 37%) as a yellow powder. 1H NMR (400 MHz, d4-MeOH, 300K) δ 2.11 (s, 3H), 3.14 (m, 4H), 3.22 (m, 4H), 5.57 (dd, J=1.3 Hz, J=10.2 Hz, 1H), 6.13 (dd, J=1.3 Hz, J=16.9 Hz, 1H), 6.30 (dd, J=10.2 Hz, J=16.9 Hz, 1H), 6.75 (d, J=8.8 Hz, 2H), 6.90 (m, 2H), 7.03 (d, J=7.8 Hz, 1H), 7.23 (m, 3H), 7.89 (d, J=5.4 Hz, 1H). MS (ES) C27H26ClN5O requires: 471, found: 472 (M+H)+.
I1 (2.6 g, 7.43 mmol, 40%, yellow solid) was prepared from 6-amino-5-bromonicotinonitrile (3.6 g, 18.2 mmol, 1.00 eq.) and trimethyl((4-methyl-3-nitrophenyl)ethynyl)silane (4.5 g, 19.0 mmol, 1.05 eq.) following the general procedure reported in Preparative Example 1 Step 1. MS (ES) C18H18N4O2Si requires: 350, found: 351 (M+H)+.
3-(4-Methyl-3-nitrophenyl)-2-(trimethylsilyl)-1H-pyrrolo[2,3-b]pyridine-5-carbonitrile 11 (270 mg, 0.8 mmol, 1.0 eq.) and N-iodosuccinimide (208 mg, 0.96 mmol, 1.2 eq.) were solved in dry dichloromethane (40 mL) and stirred for 15 h at RT. The organic phase was washed once with aq. sat. Na2S2O3-solution and three times with aq. sat. NaHCO3-solution. The organic phase was dried over Na2SO4 and solvents were removed in vacuo yielding the desired product 12 (123 mg, 0.30 mmol, 38%) as a brown solid. The crude was used without purification in the next step. MS (ES) C15H9IN4O2 requires: 403, found: 404 (M+H)+.
A mixture of 3-(4-methyl-3-nitrophenyl)-2-(trimethylsilyl)-1H-pyrrolo[2,3-b]pyridine-5-carbonitrile 12 (1.41 g, 3.5 mmol, 1.0 eq.), 4-(4-methylpiperazin-1-yl)phenylboronic acid (1.14 mg, 5.2 mmol, 1.5 eq.), and K3PO4 (1.47 g, 7.0 mmol, 2.0 eq) in dioxane/H2O (40 mL/4 mL) was degassed with a stream of N2 for 5 min. [1,1′-Bis(diphenylphosphino)ferrocene]palladium dichloride dichloromethane adduct (284 mg, 0.35 mmol, 0.1 eq.) was added and the reaction mixture heated to 130° C. for 2 h in the microwave oven. The reaction mixture was diluted with EtOAc, washed three times with aq. sat. NaHCO3-solution. The organic phase was dried over MgSO4 and solvents were removed in vacuo. The crude product was purified by flash chromatography on silica gel (DCM/MeOH with 0.1% NEt3=100:0 to 1:1) to yield the desired product 13 (500 mg, 1.10 mmol, 32%) as a yellow solid. MS (ES) C26H24N6O2 requires: 452, found: 453 (M+H)+.
14 (93 mg, 0.22 mmol) was prepared from 13 following the general procedure reported in Preparative Example 1 Step 2. MS (ES) C18H18N4O2Si requires: 350, found: 351 (M+H)+.
To a solution of I4 (30 mg, 0.071 mmol, 1.0 eq.) and DIPEA (92 mg, 0.71 mmol, 10.0 eq.) in dry DCM (2 mL) at 0° C. was added slowly acrylolyl chloride (32 mg, 0.355 mmol, 5.0 eq.) in dry DCM (1 mL). The mixture was stirred for 5 min. The crude solution was directly purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound 16 (3 mg, 0.004 mmol, 5%) as a yellow powder. 1H NMR (400 MHz, d4-MeOH, 300K) δ 2.31 (s, 3H), 2.95 (s, 3H), 3.30-3.48 (m, 8H), 5.79 (dd, J=1.6 Hz, J=10.2 Hz, 1H), 6.36 (dd, J=1.6 Hz, J=17.0 Hz, 1H), 6.52 (dd, J=10.2 Hz, J=17.0 Hz, 1H), 7.02 (d, J=9.0 Hz, 2H), 7.09 (d, J=8.1 Hz, 1H), 7.27 (d, J=7.8 Hz, 1H), 7.50 (m, 3H), 8.23 (d, J=1.9 Hz, 1H), 8.51 (d, J=1.9 Hz, 1H). MS (ES) C29H28N6O requires: 476, found: 477 (M+H)+.
Tert-butyl 6-(4-chloro-2-(trimethylsilyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-2H-benzo[b][1,4]oxazine-4(3H)-carboxylate F1 (3489 mg, 7.62 mmol) in 30% TFA in DCM (20 mL) at RT was stirred for 2 h. Evaporation of the solvents yielded a brown solid, which was purified by flash chromatography on silica gel (DCM/MeOH=100:0 to 5:1) to yield the desired product J1 (2726 mg, 7.62 mmol, 100%) as a yellow solid. MS (ES) C18H20ClN3OSi requires: 357, found: 358 (M+H)+.
J2 (635 mg, 1.54 mmol, 55%, white solid) was prepared from J1 following the general procedure reported in Preparative Example 1 Step 3 Procedure A. MS (ES) C21H22ClN3O2Si requires: 411, found: 412 (M+H)+.
J3 (465 mg, 1.00 mmol, 100%, yellow solid) was prepared from J2 following the general procedure reported in Preparative Example 1 Step 4. MS (ES) C18H13ClN3O2 requires: 465, found: 466 (M+H)+.
J4 (7.4 mg, 0.01 mmol, 9%, yellow solid) was prepared from J3 and 2-(4-methylpiperazino)pyridine-4-boronic acid pinacol ester following the general procedure reported in Preparative Example 1 Step 5. 1H NMR (400 MHz, d6-DMSO, 300K) δ 2.86 (s, 3H), 3.06 (m, 4H), 3.50 (d, J=10.3 Hz, 2H), 4.27-4.40 (m, 6H), 5.52 (d, J=10.6 Hz, 1H), 6.15 (dd, J=1.9 Hz, J=16.9 Hz, 1H), 6.59 (m, 1H), 6.66 (d, J=5.3 Hz, 1H), 7.00 (d, J=8.3 Hz, 1H), 7.03 (s, 1H), 7.12 (d, J=7.6 Hz, 1H), 7.20 (d, J=5.1 Hz, 1H), 8.10 (d, J=5.3 Hz, 1H), 8.26 (d, J=5.1 Hz, 1H), 9.73 (s, 1H), 12.66 (s, 1H). MS (ES) C28H27ClN6O2 requires: 514, found: 515 (M+H)+.
The Examples in the following table were prepared according to the procedure described for J4 (Example 98).
K1 (3.74 g, 8.29 mmol, 73%, yellow solid) was prepared from 4-ethoxy-3-iodopyridin-2-amine and tert-butyl 6-((trimethylsilyl)ethynyl)indoline-1-carboxylate following the general procedure reported in Preparative Example 1 Step 1. MS (ES) C25H33N3O3Si requires: 451, found: 452 (M+H)+.
Tert-butyl 6-(4-ethoxy-2-(trimethylsilyl)-1H-pyrrolo[2,3-b]pyridin-3-yl)indoline-1-carboxylate K1 (1.5 g, 3.3 mmol) in 30% TFA in DCM (60 mL) at RT was stirred for 2 h. Evaporation of the solvents yielded a brown solid. To the crude was added aq. sat. NaHCO3-solution and the mixture were extracted three times with DCM. The organic phase was dried over MgSO4 and solvent was removed in vacuo. The desired product K2 which has an impurity of 4-ethoxy-3-(indolin-6-yl)-1H-pyrrolo[2,3-b]pyridine was used without further purification in the next step. MS (ES) C20H25N3OSi requires: 351, found: 352 (M+H)+.
K3 (371 mg, 0.91 mmol, 32%, white solid) was prepared from K2 following the general procedure reported in Preparative Example 1 Step 3 Procedure A. MS (ES) C23H2N3O2Si requires: 405 found: 406 (M+H)+.
K4 (380 mg, 0.83 mmol, yellow solid) was prepared from K3 following the general procedure reported in Preparative Example 1 Step 4. MS (ES) C20H18IN3O2 requires: 459, found: 460 (M+H)+.
K5 (14 mg, 0.019 mmol, 17%, yellow solid) was prepared from K4 and 4-(4-methylpiperazin-1-yl)phenylboronic acid following the general procedure reported in Preparative Example 1 Step 5. 1H NMR (400 MHz, d6-DMSO, 300K) δ 1.09 (t, J=6.9 Hz, 3H), 2.85 (s, 3H), 2.97 (t, J=12.6 Hz, 2H), 3.12 (m, 2H), 3.21 (t, J=8.5 Hz, 2H), 3.51 (d, J=11.9 Hz, 2H), 3.91 (d, J=13.3 Hz, 2H), 4.11 (quart., J=6.9 Hz, 2H), 4.26 (t, J=8.5 Hz, 2H), 5.80 (d, J=10.3 Hz, 1H), 6.25 (d, J=16.5 Hz, 1H), 6.76 (m, 2H), 6.91 (d, J=7.6 Hz, 1H), 6.96 (d, J=8.5 Hz, 2H), 7.17 (d, J=7.6 Hz, 1H), 7.34 (d, J=8.5 Hz, 2H), 8.19 (d, J=6.0 Hz, 1H), 8.25 (s, 1H), 9.79 (s, 1H), 12.39 (s, 1H). MS (ES) C31H33N5O2 requires: 507, found: 508 (M+H)+.
The Examples in the following table were prepared according to the procedure described for K5 (Example 104).
The Examples in the following table were prepared according to the procedure described for K5 (Example 104) using 4-methoxy-3-iodopyridin-2-amine as a starting material in the step 1.
L1 (15 mg, 0.2 mmol, yellow solid) was prepared according to the procedure described for K5 (Example 104) using 3-iodo-4-isopropoxypyridin-2-amine as a starting material in the step 1. 1H NMR (400 MHz, d6-DMSO, 300K) δ 1.13 (d, J=6.0 Hz, 6H), 2.85 (s, 3H), 3.00 (m, 2H), 3.12 (m, 2H), 3.22 (t, J=8.3 Hz, 2H), 3.50 (m, 2H), 3.92 (m, 2H), 4.27 (t, J=8.3 Hz, 2H), 4.85 (quint., J=6.0 Hz, 1H), 5.80 (d, J=10.3 Hz, 1H), 6.25 (d, J=16.6 Hz, 1H), 6.77 (d, J=10.3 Hz, J=16.6 Hz, 1H), 6.90 (d, J=7.6 Hz, 1H), 6.94 (d, J=6.5 Hz, 1H), 6.98 (d, J=8.5 Hz, 2H), 7.18 (d, J=7.6 Hz, 1H), 7.35 (d, J=8.5 Hz, 2H), 8.27 (m, 2H), 10.02 (s, 1H), 12.81 (s, 1H). MS (ES) C32H35N5O2 requires: 521, found: 522 (M+H)+.
A mixture of 3-(4-methyl-3-nitrophenyl)-2-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carbonitrile 13 (3.0 g, 6.6 mmol) in conc. aq. HCl-solution (50 mL) was heated for 3 h at 100° C. Solvent was removed in vacuo yielding the desired product M1 as a brown solid (3.1 g, 6.6 mmol). MS (ES) C26H25N5O4 requires: 471, found: 472 (M+H)+.
A mixture of 3-(4-methyl-3-nitrophenyl)-2-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylic acid M1 (3.0 g, 6.6 mmol, 1.0 eq.) and iron (1.8 g, 31.8 mmol, 5 eq.) in EtOH (100 mL) and sat. aq. NH4Cl-solution (20 mL) was heated for 15 h at 80° C. Solvents were removed in vacuo and the crude was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound M2 (1.7 g, 4.0 mmol, 60%) as a yellow powder. MS (ES) C26H27N5O2 requires: 441, found: 442 (M+H)+.
To a solution of 3-(3-amino-4-methylphenyl)-2-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylic acid M2 (580 mg, 1.31 mmol, 1.0 eq.) and DIPEA (2.3 mL, 13.1 mmol, 10 eq.) in dry THF (10 ml) at 0° C. was added slowly acryloyl chloride (0.11 mL, 1.31 mmol, 1.0 eq.) in dry THF (1 mL). After 10 min a drop of water was added and solvents were removed in vacuo. The crude was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound M3 (170 mg, 0.34 mmol, 26%) as a yellow powder. 1H NMR (400 MHz, d6-DMSO, 300K) δ 2.27 (s, 3H), 2.85 (s, 3H), 3.01 (t, J=12.5 Hz, 2H), 3.13 (m, 2H), 3.51 (d, J=12.0 Hz, 2H), 3.93 (d, J=13.3 Hz, 2H), 5.74 (dd, J=10.1 Hz, J=2.0 Hz, 1H), 6.22 (dd, J=17.1 Hz, J=2.0 Hz, 1H), 6.56 (dd, J=17.1 Hz, J=10.1 Hz, 1H), 7.03 (m, 3H), 7.27 (d, J=7.9 Hz, 1H), 7.47 (d, J=6.4 Hz, 2H), 7.60 (s, 1H), 8.26 (d, J=2.0 Hz, 1H), 8.80 (d, J=2.0 Hz, 1H), 9.55 (s, 1H), 9.72 (br s, 1H), 12.41 (s, 1H), 12.86 (br s, 1H). MS (ES) C29H29N5O3 requires: 495, found: 496 (M+H)+.
A mixture of 3-(4-methyl-3-nitrophenyl)-2-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carbonitrile 13 (100 mg, 0.2 mmol) and conc. H2SO4 (1 mL) in isopropyl alcohol (2 mL) was heated for 48 h at 80° C. After cooling to RT, EtOAc and sat. aq. NaHCO3-solution was added. The aq. phase was extracted with EtOAc (3×) and the combined organic phase was dried over MgSO4. Evaporation of solvents yielded the crude product of N1 (28 mg, 0.05 mmol, 27%) as a yellow solid. The crude was used in the next step without further purification. MS (ES) C29H31N5O4 requires: 513, found: 514 (M+H)+.
Isopropyl 3-(4-methyl-3-nitrophenyl)-2-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylate N1 (28 mg, 0.05 mmol, 1.0 eq.) and iron (15 mg, 0.3 mmol, 5 eq.) in EtOH (5 mL) and sat. aq. NH4Cl-solution (1 mL) was heated for 3 h at 80° C. Sat. aq. NaHCO3-solution was added and the aq. phase was extracted with DCM (3×). The organic phase was dried over MgSO4 and solvents were removed in vacuo. The crude product was purified by flash chromatography on silica gel (DCM/MeOH with 0.1% NEt3=100:0 to 1:1) to yield the desired product N2 (25 mg, 0.05 mmol, 94%) as a brown solid. MS (ES) C29H33N5O2 requires: 483, found: 484 (M+H)+.
N3 (2 mg, 0.003 mmol, 4%, yellow solid) was prepared from N2 following the general procedure reported in Preparative Example 98 Step 3. The crude product was purified reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound N3 as a yellow solid. 1H NMR (400 MHz, d6-DMSO, 300K) δ 1.31 (d, J=6.2 Hz, 6H), 2.26 (s, 3H), 2.85 (s, 3H), 2.98 (t, J=13.0 Hz, 2H), 3.10 (m, 2H), 3.50 (d, J=12.0 Hz, 2H), 3.92 (d, J=13.0 Hz, 2H), 5.14 (quint., J=6.2 Hz, 1H), 5.72 (dd, J=10.2 Hz, J=2.0 Hz, 1H), 6.21 (dd, J=17.1 Hz, J=2.0 Hz, 1H), 6.55 (dd, J=10.2 Hz, J=17.1 Hz, 1H), 6.99 (d, J=8.6 Hz, 2H), 7.25 (d, J=7.9 Hz, 1H), 7.45 (d, J=8.6 Hz, 2H), 7.64 (s, 1H), 8.31 (d, J=2.0 Hz, 1H), 8.79 (d, J=2.0 Hz, 1H), 9.50 (s, 1H), 9.58 (br. s, 1H), 12.43 (s, 1H). MS (ES) C32H35N5O3 requires: 537 found: 538 (M+H)+.
A solution of 3-(3-acrylamido-4-methylphenyl)-2-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylic acid M3 (30 mg, 0.06 mmol, 1.0 eq.), DIPEA (0.1 mL, 0.60 mmol, 10 eq.) and HATU (46 mg, 0.12 mmol, 2.0 eq.) in dry DMF (1 mL) was stirred for 5 min at 0° C. Then benzyl amine (13 mg, 0.12 mmol, 2.0 eq.) was added and the mixture was stirred for 30 min at 0° C. Sat. aq. NaHCO3-solution was added and the mixture was extracted with EtOAc. The combined organic phase was dried over MgSO4 and and solvents were removed in vacuo. The crude was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound O1 (10 mg, 0.01 mmol, 21%) as a yellow powder. 1H NMR (400 MHz, d4-MeOH, 300K) δ 2.30 (s, 3H), 2.97 (s, 3H), 3.07 (t, J=12.4 Hz, 2H), 3.26 (m, 2H), 3.61 (d, J=12.4 Hz, 2H), 3.93 (d, J=13.7 Hz, 2H), 4.59 (s, 2H), 5.77 (dd, J=10.2 Hz, J=1.7 Hz, 1H), 6.32 (dd, J=17.0 Hz, J=1.7 Hz, 1H), 6.50 (dd, J=10.2 Hz, J=17.0 Hz, 1H), 7.01 (d, J=8.9 Hz, 2H), 7.12 (d, J=8.1 Hz, 1H), 7.20-7.37 (m, 6H), 7.50 (d, J=8.9 Hz, 2H), 7.54 (s, 1H), 8.48 (d, J=2.1 Hz, 1H), 8.75 (d, J=2.1 Hz, 1H). MS (ES) C36H36N6O2 requires: 584 found: 585 (M+H)+.
The Examples in the following table were prepared according to the procedure described for 01 (Example 118).
A solution of 3-(3-acrylamido-4-methylphenyl)-2-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylic acid M3 (40 mg, 0.08 mmol, 1.0 eq.), DMAP (5 mg, 0.04 mmol, 0.5 eq.), N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride (17 mg, 0.09 mmol, 1.1 eq.) and dry methanol (7 mg, 0.2 mmol, 2.5 eq.) in DCM (2 mL) was stirred for 15 h at RT. The crude solution was directly purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound P1 (20 mg, 0.03 mmol, 34%) as a yellow powder. 1H NMR (400 MHz, d6-DMSO, 300K) δ 2.26 (s, 3H), 2.84 (s, 3H), 2.98 (t, J=12.0 Hz, 2H), 3.11 (m, 2H), 3.50 (t, J=12.0 Hz, 2H), 3.84 (s, 3H), 3.92 (d, J=13.3 Hz, 2H), 5.72 (dd, J=10.2 Hz, J=2.0 Hz, 1H), 6.21 (dd, J=17.0 Hz, J=2.0 Hz, 1H), 6.54 (dd, J=17.0 Hz, J=10.2 Hz, 1H), 6.99 (d, J=9.0 Hz, 2H), 7.02 (m, 1H), 7.26 (d, J=7.9 Hz, 1H), 7.44 (d, J=9.0 Hz, 2H), 7.58 (s, 1H), 8.26 (d, J=2.1 Hz, 1H), 8.80 (d, J=2.1 Hz, 1H), 9.52 (s, 1H), 9.72 (s, 1H), 12.45 (s, 1H). MS (ES) C30H31N5O3 requires: 509 found: 510 (M+H)+.
The Examples in the following table were prepared according to the procedure described for P1 (Example 134).
Q1 was prepared from 4-chloro-3-(4-methyl-3-nitrophenyl)-2-(trimethylsilyl)-1H-pyrrolo[2,3-b]pyridine A1 following the procedure reported in Preparative Example 97 Step 2-4. MS (ES) C25H26ClN5 requires: 431 found: 432 (M+H)+.
To a solution of Q1 (20 mg, 0.05 mmol, 1.0 eq.) and DIPEA (60 mg, 0.46 mmol, 10.0 eq.) in dry THF (2 mL) at 0° C. was added slowly crotonoyl chloride (5 mg, 0.05 mmol, 1.1 eq.) in dry THF (0.5 mL). The mixture was stirred for 10 min. The solution was diluted with EtOAc and washed twice with aq. sat. NaHCO3-solution. The organic phase was dried over MgSO4 and solvent was removed in vacuo. The crude product was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound Q2 (13 mg, 0.02 mmol, 36%) as a yellow powder. 1H NMR (400 MHz, d6-DMSO, 300K) δ 1.82 (dd, J=7.0 Hz, J=1.7 Hz, 3H), 2.23 (s, 3H), 2.82 (s, 3H), 2.95 (t, J=12.4 Hz, 2H), 3.07 (m, 2H), 3.43 (m, 2H), 3.90 (d, J=13.3 Hz, 2H), 6.21 (d, J=15.2 Hz, 1H), 6.70 (dq, J=7.0 Hz, J=15.2 Hz, 1H), 6.92 (d, J=9.0 Hz, 2H), 7.00 (dd, J=7.5 Hz, J=1.8 Hz, 1H), 7.06 (d, J=5.2 Hz, 1H), 7.18 (d, J=7.9 Hz, 1H), 7.35 (d, J=9.0 Hz, 2H), 7.52 (s, 1H), 8.12 (d, J=5.2 Hz, 1H), 9.21 (s, 1H), 9.69 (s, 1H), 12.30 (s, 1H). MS (ES) C29H30ClN5O requires: 500, found: 501 (M+H)+.
To a solution of trans-4-dimethylaminocrotonic acid hydrochlorid (46 mg, 0.28 mmol, 3 eq.) and a drop of dry DMF in dry DCM (1 mL) at 0° C. was added slowly oxalyl chloride (20 uL, 0.23 mmol, 2.5 eq.) in dry DCM (0.2 mL). After 1 h this mixture was added to a solution of Q1 (40 mg, 0.09 mmol, 1.0 eq.) in dry DCM (1 mL) and dry NMP (1 mL). The mixture was stirred for 10 min. The solution was diluted with DCM and washed twice with aq. sat. NaHCO3-solution. The organic phase was dried over MgSO4 and solvent was removed in vacuo. The crude product was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound R1 (26 mg, 0.03 mmol, 33%) as a yellow powder. 1H NMR (400 MHz, d6-DMSO, 300K) δ 2.28 (s, 3H), 2.80 (s, 6H), 2.84 (s, 3H), 2.97 (t, J=12.6 Hz, 2H), 3.09 (m, 2H), 3.48 (m, 2H), 3.93 (m, 2H), 6.57 (d, J=15.4 Hz, 1H), 6.68 (dt, J=7.0 Hz, J=15.4 Hz, 1H), 6.94 (d, J=9.0 Hz, 2H), 7.05 (d, J=7.7 Hz, 1H), 7.08 (d, J=5.2 Hz, 1H), 7.23 (d, J=7.7 Hz, 1H), 7.36 (d, J=9.0 Hz, 2H), 7.56 (s, 1H), 8.14 (d, J=5.2 Hz, 1H), 9.65 (s, 1H), 9.74 (s, 1H), 12.34 (s, 1H). MS (ES) C31H35ClN6O requires: 543, found: 544 (M+H)+.
To a solution of Q1 (70 mg, 0.16 mmol, 1.0 eq.) and DIPEA (0.28 mL, 1.62 mmol, 10.0 eq.) in dry THF (2 mL) at 0° C. was added slowly 3-(trimethylsilyl)propioloyl chloride (29 mg, 0.18 mmol, 1.1 eq.) in dry THF (0.5 mL). The mixture was stirred for 10 min. Then K2CO3 (223 mg, 1.62 mmol, 10 eq.) was added and the solution was stirred for 30 min at at 0° C. The mixture was directly purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound S1 (30 mg, 0.04 mmol, 26%) as a yellow powder. 1H NMR (400 MHz, d6-DMSO, 300K) δ 2.25 (s, 3H), 2.85 (s, 3H), 2.98 (t, J=12.4 Hz, 2H), 3.10 (m, 2H), 3.48 (d, J=12.0 Hz, 2H), 3.92 (d, J=13.3 Hz, 2H), 4.32 (s, 1H), 6.93 (d, J=8.8 Hz, 2H), 7.08 (m, 2H), 7.23 (d, J=7.8 Hz, 1H), 7.31 (s, 1H), 7.35 (d, J=8.8 Hz, 2H), 8.14 (d, J=5.2 Hz, 1H), 9.78 (s, 1H), 10.23 (s, 1H), 12.35 (s, 1H). MS (ES) C28H26ClN5O requires: 483, found: 484 (M+H)+.
To a solution of Q1 (25 mg, 0.06 mmol, 1.0 eq.) and triethylamine (0.10 mL, 0.58 mmol, 10.0 eq.) in dry THF (2 mL) at −10° C. was added slowly 2-chloroethanesulfonyl chloride (10 mg, 0.06 mmol, 1.1 eq.) in dry THF (0.5 mL). After 2 h stirring at −10° C., the mixture was directly purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound T1 (18 mg, 0.02 mmol, 40%) as a yellow powder. 1H NMR (400 MHz, d6-DMSO, 300K) δ 2.32 (s, 3H), 2.82 (s, 3H), 2.95 (m, 2H), 3.08 (m, 2H), 3.42 (m, 2H), 3.90 (m, 2H), 5.79 (d, J=9.8 Hz, 1H), 5.80 (d, J=16.4 Hz, 1H), 6.64 (dd, J=9.8 Hz, J=16.4 Hz, 1H), 6.91 (d, J=9.0 Hz, 2H), 7.07 (d, J=5.2 Hz, 1H), 7.08 (d, J=1.8 Hz, 1H), 7.13 (d, J=1.8 Hz, 1H), 7.21 (d, J=7.7 Hz, 1H), 7.27 (d, J=9.0 Hz, 2H), 8.12 (d, J=5.2 Hz, 1H), 9.22 (s, 1H), 9.85 (s, 1H), 12.33 (s, 1H). MS (ES) C27H28ClN5O2S requires: 522, found: 523 (M+H)+.
To a solution of Q1 (30 mg, 0.07 mmol, 1.0 eq.) and DIPEA (0.12 mL, 0.69 mmol, 10.0 eq.) in dry THF (2 mL) at 0° C. was added slowly chloroacetyl chloride (39 mg, 0.35 mmol, 5.0 eq.) in dry THF (0.5 mL). The mixture was stirred for 10 min. Then sat. aq. NaHCO3-solution was added and the aq. phase was extracted with DCM. The combined organic phase was dried over MgSO4 and solvents were removed in vacuo. The crude product was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound U1 (13 mg, 0.02 mmol, 25%) as a yellow powder. 1H NMR (400 MHz, d6-DMSO, 300K) δ 2.25 (s, 3H), 2.81 (s, 3H), 2.96 (t, J=12.6 Hz, 2H), 3.08 (m, 2H), 3.46 (d, J=12.0 Hz, 2H), 3.90 (d, J=13.2 Hz, 2H), 4.26 (s, 2H), 6.91 (d, J=8.9 Hz, 2H), 7.04 (d, J=7.6 Hz, 1H), 7.07 (d, J=5.2 Hz, 1H), 7.20 (d, J=7.6 Hz, 1H), 7.34 (d, J=8.9 Hz, 2H), 7.43 (s, 1H), 8.12 (d, J=5.2 Hz, 1H), 9.62 (s, 1H), 9.73 (s, 1H), 12.32 (s, 1H). MS (ES) C27H27Cl2N5O requires: 507, found: 508 (M+H)+.
V1 was prepared from 3-iodo-4-ethoxypyridin-2-amine, trimethyl((4-methyl-3-nitrophenyl)ethynyl)silane and 4-(1-methyl-4-piperidyl)phenylboronic acid pinacol Ester following the general procedure reported in Preparative Example 72 Step 1-5. MS (ES) C31H34N4O2 requires: 494, found: 495 (M+H)+.
To a solution of trans-4-dimethylaminocrotonic acid hydrochlorid (30 mg, 0.18 mmol, 3.5 eq.) and a drop of dry DMF in dry THF (1 mL) at 0° C. was added slowly oxalyl chloride (14 uL, 0.16 mmol, 3.0 eq.) in dry THF (0.2 mL). After 90 min the mixture was added to a solution of N2 (25 mg, 0.05 mmol, 1.0 eq.) in dry NMP (1 mL). The mixture was stirred for 10 min. The solution was diluted with DCM and washed twice with aq. sat. NaHCO3-solution. The organic phase was dried over MgSO4 and solvent was removed in vacuo. The crude product was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound W1 (13 mg, 0.01 mmol, 28%) as a yellow powder. 1H NMR (400 MHz, d6-DMSO, 300K) δ 1.34 (d, J=6.3 Hz, 6H), 2.29 (s, 3H), 2.81 (s, 6H), 2.86 (s, 3H), 3.04 (m, 2H), 3.13 (m, 2H), 3.43 (m, 2H), 3.90 (m, 2H), 3.94 (d, J=7.0 Hz, 2H), 5.16 (sept., J=6.3 Hz, 1H), 6.62 (d, J=15.4 Hz, 1H), 6.73 (dt, J=15.4 Hz, J=7.0 Hz, 1H), 7.02 (m, 3H), 7.27 (d, J=7.9 Hz, 1H), 7.47 (d, J=8.9 Hz, 2H), 7.67 (s, 1H), 8.33 (d, J=2.0 Hz, 1H), 8.82 (d, J=2.0 Hz, 1H), 9.75 (s, 1H), 10.02 (s, 1H), 12.47 (s, 1H). MS (ES) C35H42N6O3 requires: 594, found: 595 (M+H)+.
AA1 was prepared following the procedure reported in Preparative Example 97 and 117. The crude product was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound AA1 as a yellow solid. 1H-NMR (400 MHz, d6-DMSO, 300K) δ 1.34 (d, J=6.2 Hz, 6H), 1.82 (q, J=13.2 Hz, 2H), 2.05 (d, J=13.2 Hz, 2H), 2.28 (s, 3H), 2.82 (m, 4H), 3.08 (q, J=12.0 Hz, 2H), 5.15 (septet, J=6.2 Hz, 1H), 5.75 (dd, J=2.0 Hz, J=10.2 Hz, 1H), 6.21 (dd, J=2.0 Hz, J=17.0 Hz, 1H), 6.58 (dd, J=10.2 Hz, J=17.0 Hz, 1H), 7.00 (d, J=7.8 Hz, 1H), 7.27 (m, 3H), 7.54 (d, J=8.1 Hz, 2H), 7.66 (s, 1H), 8.40 (d, J=1.9 Hz, 1H), 8.85 (d, J=1.9 Hz, 1H), 9.41 (br s, 1H), 9.53 (s, 1H), 12.56 (s, 1H). MS (ES) C33H36N4O3 requires: 536 found: 537 (M+H)+.
The Example in the following table was prepared according to the procedure described for AA1 (Example 149).
AB1 was prepared was prepared from 4-chloro-3-iodopyridine-2-amine and ((3,4-dimethyl-5-nitrophenyl)ethynyl)trimethylsilane following the general procedure reported in Preparative Example 1. The crude product was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound AB1 as a yellow solid. 1H-NMR (400 MHz, d6-DMSO, 300K) δ 2.14 (s, 3H), 2.26 (s, 3H), 2.84 (s, 3H), 2.87 (m, 2H), 3.01 (m, 2H), 3.12 (m, 2H), 3.91 (m, 2H), 5.70 (dd, J=2.0 Hz, J=10.1, 1H), 6.18 (dd, J=2.0 Hz, J=17.2 Hz, 1H), 6.52 (dd, J=10.1 Hz, J=17.2 Hz, 1H), 6.93 (d, J=8.7 Hz, 2H), 7.0 (s, 1H), 7.05 (d, J=5.2 Hz, 1H), 7.26 (s, 1H), 7.41 (d, J=8.7 Hz, 2H), 8.12 (d, J=5.2 Hz, 1H), 9.54 (s, 1H), 9.81 (br s, 1H), 12.28 (s, 1H). MS (ES) C29H30ClN5O requires: 500 found: 501 (M+H)+.
The Example in the following table was prepared according to the procedure described for AB1 (Example 150).
AC1 was prepared was prepared following the general procedure reported in Preparative Example 97 and 116. The crude product was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound AC1 as a yellow solid. 1H-NMR (400 MHz, d6-DMSO, 300K) δ 2.27 (s, 3H), 2.83 (s, 3H), 2.84 (s, 3H), 2.94 (s, 3H), 3.23 (m, 2H), 3.66 (m, 2H), 5.74 (dd, J=2.1 Hz, J=10.2 Hz, 1H), 6.22 (d, J=2.1 Hz, J=17.1 Hz, 1H), 6.55 (dd, J=10.2 Hz, 17.1 Hz, 1H), 6.79 (d, J=9.1 Hz, 2H), 7.04 (d, J=7.9 Hz, 1H), 7.28 (d, J=7.9 Hz, 1H), 7.44 (d, J=9.1 Hz, 2H), 7.58 (s, 1H), 8.23 (d, J=2.0 Hz, 1H), 8.79 (d, J=2.0 Hz, 1H), 9.34 (br s, 1H), 9.56 (s, 1H), 12.34 (s, 1H), 12.81 (br s, 1H). MS (ES) C29H31N5O3 requires: 497 found: 498 (M+H)+.
AD1 (8 mg, 0.01 mmol, 26%) was prepared from AC1 and isopropanol following the general procedure reported in Preparative Example 98 Step 3. The crude product was purified reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound AD1 as a yellow solid. 1H NMR (400 MHz, d6-DMSO, 300K) δ 1.33 (d, J=6.3 Hz, 6H), 2.28 (s, 3H), 2.80 (s, 6H), 2.95 (s, 3H), 3.19 (m, 2H), 3.68 (t, J=7.4 Hz, 2H), 5.15 (septet, J=6.3 Hz, 1H), 5.75 (dd, J=1.9 Hz, J=10.0 Hz, 1H), 6.23 (dd, J=1.9 Hz, J=17.0 Hz, 1H), 6.57 (dd, J=10.0 Hz, J=17.0 Hz, 1H), 6.79 (d, J=8.8 Hz, 2H), 7.03 (d, J=7.8 Hz, 1H), 7.27 (d, J=7.8 Hz, 1H), 7.44 (d, J=8.8 Hz, 2H), 7.63 (s, 1H), 8.29 (d, J=2.0 Hz, 1H), 8.79 (d, J=2.0 Hz, 1H), 9.55 (s, 1H), 9.75 (br s, 1H), 12.39 (s, 1H). (ES) C32H37N5O3 requires: 539, found: 540 (M+H)+.
AE1 was prepared was prepared from 3-bromo-5-chloro-4-methylpyridin-2-amine and trimethyl((4-methyl-3-nitrophenyl)ethynyl)silane following the general procedure reported in Preparative Example 1. The crude product was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound AE1 as a yellow solid. 1H-NMR (400 MHz, d6-DMSO, 300K) δ 2.07 (s, 3H), 2.28 (s, 3H), 2.82/2.83 (s, 3H), 2.94 (t, J=12.6 Hz, 2H), 3.08 (m, 2H), 3.45 (m, 2H), 3.88 (d, J 13.2 Hz, 2H), 5.71 (dd, J=2.0 Hz, J=10.1 Hz, 1H), 6.20 (dd, J=2.0 Hz, J=17.1 Hz, 1H), 6.52 (dd, J=10.1 Hz, J=17.1 Hz, 1H), 6.90 (d, J=8.8 Hz, 2H), 7.02 (d, J=7.8 Hz, 1H), 7.24 (d, 7.8 Hz, 1H), 7.34 (d, J=8.8 Hz, 2H), 7.56 (s, 1H), 8.14 (s, 1H), 9.46 (s, 1H), 9.54 (br s, 1H), 12.09 (s, 1H). MS (ES) C29H30ClN5O requires: 500 found: 501 (M+H)+.
Isopropyl 6-amino-5-iodonicotinate (11.4 g, 37.2 mmol, 1.0 eq.), trimethyl((4-methyl-3-nitrophenyl)ethynyl)silane (8.7 g, 37.2 mmol, 1.0 eq.), 1,4-diazabicyclo[2.2.2]octane (7.1 g, 63.2 mmol, 1.7 eq.) and dichlorobis(triphenylphosphine)palladium(II) (2.6 g, 3.7 mmol, 0.1 eq.) in dry DMF (120 mL) under N2 atmosphere was splitted in six microwave vials. Each vial was heated at 145° C. for 5 h. The solvent was removed in vacuo and the crude product was purified by flash chromatography on silica gel (cHex/EtOAc=100:0 to 1:1) to yield the desired product AF1 (7.1 g, 17.3 mmol, 46%) as a beige solid. 1H-NMR (400 MHz, d6-DMSO, 300K) δ 0.23 (s, 9H), 1.33 (d, J=6.2 Hz, 6H), 2.60 (s, 3H), 5.15 (septet, J=6.2 Hz, 1H), 7.63 (d, J=7.8 Hz, 1H), 7.71 (dd, J=1.9 Hz, J=7.8 Hz, 1H), 7.97 (d, J=1.9 Hz, 1H), 8.25 (d, J=1.9 Hz, 1H), 8.88 (d, J=1.9 Hz, 1H), 12.17 (s, 1H). MS (ES) C21H25N3O4Si requires: 411, found: 412 (M+H)+.
A solution of isopropyl 3-(4-methyl-3-nitrophenyl)-2-(trimethylsilyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylate AF1 (7.1 g, 17.3 mmol, 1.0 eq.) and iron (2 g, 36.4 mmol, 2.1 eq.) in EtOH (360 mL) and aq. sat. NH4Cl-solution (36 mL) was stirred for 8 h at 80° C. The solution was filtered through a pad of Celite®. Solvents were removed in vacuo. The crude product was purified by flash chromatography on silica gel (cHex/EtOAc=100:0 to 0:100) to yield the desired product AF2 (5.4 g, 14.2 mmol, 82%) as a beige solid. MS (ES) C21H27N3O2Si requires: 381, found: 382 (M+H)+.
To a solution of AF2 (5.4 g, 14.2 mmol, 1.0 eq.) and DIPEA (24.7 mL, 141.7 mmol, 10.0 eq.) in dry THF (200 mL) at −78° C. was added acrylolyl chloride (1.53 g, 17.0 mmol, 1.2 eq.) in dry THF (20 mL). The mixture was stirred for 20 min at −40° C. and then a few drops of water were added. Solvents were removed in vacuo. The crude product was purified by flash chromatography on silica gel (cHex/EtOAc=100:0 to 1:1) to yield the desired product AF3 (6.2 g, 14.2 mmol, quant.) as a yellow solid. MS (ES) C24H29N3O3Si requires: 435, found: 436 (M+H)+.
Isopropyl 3-(3-acrylamido-4-methylphenyl)-2-(trimethylsilyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylate AF3 (6.2 g, 14.2 mmol, 1.0 eq.) and N-iodosuccinimide (4.2 g, 18.5 mmol, 1.3 eq.) were solved in dry dichloromethane (700 mL) and stirred for 15 h at RT. The organic phase was washed once with aq. sat. Na2S2O3-solution and twice with aq. sat. NaHCO3-solution. The organic phase was dried over Na2SO4 and solvents were removed in vacuo. The crude was stirred in DCM (30 mL) for 1 h at RT, the precipitate was filtered off and dried in vacuo yielding desired product AF4 (3.9 g, 8.0 mmol, 56%) as a beige solid. The crude was used without purification in the next step. 1H-NMR (400 MHz, d6-DMSO, 300K) δ 1.33 (d, J=6.2 Hz, 6H), 2.31 (s, 3H), 5.16 (septet, J=6.2 Hz, 1H), 5.77 (dd, J=2.2 Hz, J=10.1 Hz, 1H), 6.27 (dd, J=2.2 Hz, 17.0 Hz, 1H), 6.60 (dd, J=10.1 Hz, J=17.0 Hz, 1H), 7.32 (J=1.8 Hz, J=7.8 Hz, 1H), 7.39 (d, J=7.8 Hz, 1H), 7.78 (s, 1H), 8.43 (d, J=2.0 Hz, 1H), 8.79 (d, J=2.0 Hz, 1H), 9.57 (s, 1H), 12.84 (s, 1H). MS (ES) C21H20IN3O3 requires: 489, found: 490 (M+H)+.
A mixture of isopropyl 3-(3-acrylamido-4-methylphenyl)-2-iodo-1H-pyrrolo[2,3-b]pyridine-5-carboxylate AF4 (30 mg, 0.06 mmol, 1.0 eq.), 2-(4-methylpiperazino)pyridine-4-boronic acid pinacol ester (24 mg, 0.08 mmol, 1.3 eq.) and K3PO4 (26 mg, 0.12 mmol, 2.0 eq.) in dioxane/H2O (5 mL, 10/1) was degassed with a stream of N2 for 5 min. [1,1′-Bis(diphenylphosphino)ferrocene]palladium dichloride dichloromethane adduct (5 mg, 0.006 mmol, 0.1 eq.) was added and the reaction mixture heated to 130° C. for 2 h under N2 atmosphere in the microwave oven. The reaction mixture was diluted with EtOAc, washed three times with aq. sat. NaHCO3-solution. The organic phase was dried over MgSO4 and solvents were removed in vacuo. The crude was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound AF5 (8 mg, 0.01 mmol, 17%) as a yellow powder. 1H-NMR (400 MHz, d6-DMSO, 300K) δ 1.34 (d, J=6.2 Hz, 6H), 2.31 (s, 3H), 2.85 (s, 3H), 3.07 (m, 2H), 3.13 (m, 2H), 3.50 (d, J=11.7 Hz, 2H), 4.35 (d, J=13.8 Hz, 2H), 5.17 (septet, J=6.2 Hz, 1H), 5.76 (dd, J=2.1 Hz, J=10.2 Hz, 1H), 6.23 (dd, J=2.1 Hz, J=17.1 Hz, 1H), 6.56 (dd, J=10.2 Hz, J=17.1 Hz, 1H), 6.78 (dd, J=1.3 Hz, J=5.3 Hz, 1H), 7.10 (dd, J=1.8 Hz, J=7.8 Hz, 1H), 7.16 (s, 1H), 7.35 (d, J=7.8 Hz, 1H), 7.64 (s, 1H), 8.10 (d, J=5.3 Hz, 1H), 8.38 (d, J=2.0 Hz, 1H), 8.91 (d, J=2.0 Hz, 1H), 9.58 (s, 1H), 9.78 (br s, 1H), 12.75 (s, 1H). MS (ES) C31H34N6O3 requires: 538, found: 539 (M+H)+.
The Example in the following table was prepared according to the procedure described for AF5 (Example 156).
AG1 was prepared from isopropyl 6-amino-5-iodonicotinate and ((3-fluoro-4-methyl-5-nitrophenyl)ethynyl)trimethylsilane following the general procedure reported in Preparative Example 156. The crude product was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound AG1 as a yellow solid. 1H-NMR (400 MHz, d6-DMSO, 300K) δ 1.34 (d, J=6.2 Hz, 6H), 2.18 (s, 3H), 2.85/2.87 (s, 3H), 3.02 (t, J=12.4 Hz, 2H), 3.14 (q, J=12.4 Hz, 2H), 3.51 (m, 2H), 3.96 (d, J=13.3 Hz, 2H), 5.17 (septet, J=6.2 Hz, 1H), 5.87 (dd, J=2.0 Hz, J=10.2 Hz, 1H), 6.25 (dd, J=2.0 Hz, J=17.1 Hz, 1H), 6.57 (dd, J=10.2 Hz, J=17.1 Hz, 1H), 6.87 (d, J=10.4 Hz, 1H), 7.05 (d, J=8.8 Hz, 2H), 7.47 (d, J=8.8 Hz, 2H), 7.54 (s, 1H), 8.38 (d, J=2.0 Hz, 1H), 8.83 (d, J=2.0 Hz, 1H), 9.64 (br s, 1H), 9.72 (s, 1H), 12.53 (s, 1H). MS (ES) C32H34FN5O3 requires: 555 found: 556 (M+H)+.
The Example in the following table was prepared according to the procedure described for AG1 (Example 165).
AH1 was prepared from 3-bromo-5-(trifluoromethoxy)pyridin-2-amine and trimethyl((4-methyl-3-nitrophenyl)ethynyl)silane following the general procedure reported in Preparative Example 1. The crude product was purified by reverse phase RP-HPLC (column: 018), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound AH1 as a yellow solid. 1H-NMR (400 MHz, d6-DMSO, 300K) δ 2.26 (s, 3H), 2.86/2.87 (s, 3H), 3.00 (t, J=12.8 Hz, 2H), 3.13 (m, 2H), 3.52 (d, J=12.0 Hz, 2H), 3.96 (d, J=13.3 Hz, 2H), 5.75 (dd, J=2.0 Hz, J=10.0 Hz, 1H), 6.25 (dd, J=2.0 Hz, J=17.1 Hz, 1H), 6.57 (dd, J=10.0 Hz, J=17.1 Hz, 1H), 6.98 (d, J=7.8 Hz, 1H), 7.02 (d, J=9.0 Hz, 2H), 7.23 (d, J=7.8 Hz, 1H), 7.46 (d, J=9.0 Hz, 2H), 7.63 (s, 1H), 7.78 (d, J=1.9 Hz, 1H), 8.29 (d, J=1.9 Hz, 1H), 9.51 (s, 1H), 9.66 (br s, 1H), 12.36 (s, 1H). MS (ES) C29H28F3N5O2 requires: 535 found: 536 (M+H)+.
AI1 was prepared from tert-butyl 2-(6-amino-5-bromopyridin-3-yl)acetate and trimethyl((4-methyl-3-nitrophenyl)ethynyl)silane following the general procedure reported in Preparative Example 1. The crude product was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound AI1 as a yellow solid. MS (ES) C34H39N5O3 requires: 565 found: 566 (M+H)+.
A solution of AI1 (245 mg, 0.31 mmol) and TFA (2.5 mL) in DCM (7.5 mL) was stirred for 3 h at RT. Solvents were removed in vacuo. The crude product was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound AI2 (172 mg, 0.23 mmol, 74%) as a yellow solid. 1H-NMR (400 MHz, d6-DMSO, 300K) δ 2.26 (s, 3H), 2.86/2.87 (s, 3H), 2.98 (t, J=12.1 Hz, 2H), 3.13 (m, 2H), 3.52 (m, 2H), 3.65 (s, 2H), 3.92 (d, J=13.3 Hz, 2H), 5.73 (dd, J=2.0 Hz, J=10.2 Hz, 1H), 6.22 (dd, J=2.0 Hz, J=17.1 Hz, 1H), 6.55 (dd, J=10.2 Hz, J=17.1 Hz, 1H), 6.99 (m, 3H), 7.24 (d, J=7.9 Hz, 1H), 7.45 (d, J=8.9 Hz, 2H), 7.56 (s, 1H), 7.67 (d, J=2.1 Hz, 1H), 8.11 (d, J=2.1 Hz, 1H), 9.50 (s, 1H), 9.60 (br s, 1H), 11.95 (s, 1H), 12.30 (br s, 1H). MS (ES) C30H31N5O3 requires: 509 found: 510 (M+H)+.
AD1 (2 mg, 0.003 mmol, 26%) was prepared from AI2 and isopropanol following the general procedure reported in Preparative Example 134. The crude product was purified reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound AD1 as a yellow solid. 1H NMR (400 MHz, d4-MeOD, 300K) δ 1.22 (d, J=6.3 Hz, 6H), 2.30 (s, 3H), 2.98 (s, 3H), 3.07 (m, 2H), 3.27 (m, 2H), 3.60 (m, 2H), 3.73 (s, 2H), 3.93 (m, 2H), 4.98 (septet, J=6.3 Hz, 1H), 5.79 (dd, J=1.7 Hz, 10.0 Hz, 1H), 6.35 (dd, J=1.7 Hz, J=17.0 Hz, 1H), 6.51 (dd, J=10.0 Hz, J=17.0 Hz, 1H), 7.01 (d, J=9.0 Hz, 2H), 7.09 (d, J=7.9 Hz, 1H), 7.23 (d, J=7.9 Hz, 1H), 7.50 (m, 3H), 7.91 (d, J=1.9 Hz, 1H), 8.13 (d, J=1.9 Hz, 1H). MS (ES) C33H37N5O3 requires: 551 found: 552 (M+H)+.
The Examples in the following table were prepared according to the procedure described for AJ1 (Example 190).
AK1 was prepared from 3-bromo-5-ethylpyridin-2-amine and trimethyl((4-methyl-3-nitrophenyl)ethynyl)silane following the general procedure reported in Preparative Example 1. The crude product was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound AK1 as a yellow solid. 1H-NMR (400 MHz, d6-DMSO, 300K) δ 1.23 (t, J=7.6 Hz, 3H), 2.27 (s, 3H), 2.69 (q, J=7.6 Hz, 2H), 2.86/2.87 (s, 3H), 3.00 (t, J=12.7 Hz, 2H), 3.14 (m, 2H), 3.51 (m, 2H), 3.93 (d, J=13.5 Hz, 2H), 5.75 (dd, J=2.0 Hz, J=10.0 Hz, 1H), 6.24 (dd, J=2.0 Hz, J=17.0 Hz, 1H), 6.57 (dd, J=10.0 Hz, J=17.0 Hz, 1H), 7.00 (m, 3H), 7.23 (d, J=7.7 Hz, 1H), 7.44 (d, J=7.0 Hz, 2H), 7.61 (s, 1H), 7.68 (d, J=2.0 Hz, 1H), 8.13 (d, J=2.0 Hz, 1H), 9.51 (s, 1H), 9.70 (br s, 1H), 11.90 (s, 1H). MS (ES) C30H33N5O requires: 479 found: 480 (M+H)+.
AL1 was prepared from isopropyl 6-amino-5-iodonicotinate and tert-butyl 6-((trimethylsilyl)ethynyl)indoline-1-carboxylate following the general procedure reported in Preparative Example 104. The crude product was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound AL1 as a yellow solid. 1H NMR (400 MHz, d4-MeOD, 300K) δ 1.30 (d, J=6.1 Hz, 6H), 2.84 (s, 3H), 2.98 (t, J=12.6 Hz, 2H), 3.10 (m, 2H), 3.23 (m, 2H), 3.48 (d, J=12.0 Hz, 2H), 3.92 (d, J=13.4 Hz, 2H), 4.27 (m, 2H), 5.13 (septet, J=6.1 Hz, 1H), 5.79 (d, J=10.2 Hz, 1H), 6.24 (d, J=16.6 Hz, 1H), 6.74 (dd, J=10.2 Hz, J=16.6 Hz, 1H), 6.98 (m, 3H), 7.29 (d, J=7.7 Hz, 1H), 7.44 (d, J=8.7 Hz, 2H), 8.21 (s, 1H), 8.25 (s, 1H), 8.80 (d, J=2.0 Hz, 1H), 9.65 (br s, 1H), 12.44 (s, 1H). MS (ES) C33H35N5O3 requires: 549 found: 550 (M+H)+.
AM1 was prepared from 3-bromo-5-ethoxypyridin-2-amine and trimethyl((4-methyl-3-nitrophenyl)ethynyl)silane following the general procedure reported in Preparative Example 1. The crude product was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound AM1 as a yellow solid. 1H NMR (400 MHz, d4-MeOD, 300K) δ 1.32 (t, J=7.0 Hz, 3H), 2.24 (s, 3H), 2.84 (s, 3H), 2.97 (t, J=12.6 Hz, 2H), 3.12 (m, 2H), 3.50 (d, J=12.0 Hz, 2H), 3.88 (d, J=13.4 Hz, 2H), 4.05 (q, J=7.0 Hz, 2H), 5.72 (dd, J=2.0 Hz, J=10.1 Hz, 1H), 6.22 (dd, J=2.0 Hz, J=17.1 Hz, 1H), 6.55 (dd, J=10.1 Hz, J=17.1 Hz, 1H), 6.94 (d, J=8.0 Hz, 1H), 6.98 (d, J=9.0 Hz, 2H), 7.18 (d, J=8.0 Hz, 1H), 7.42 (m, 3H), 7.62 (s, 1H), 7.96 (d, J=2.7 Hz, 1H), 9.49 (s, 1H), 9.73 (br s, 1H), 11.79 (s, 1H). MS (ES) C30H33N5O2 requires: 495 found: 496 (M+H)+.
AN1 (2 mg, 0.003 mmol, 26%) was prepared from A12 and dimethylamine following the general procedure reported in Preparative Example Example 118. The crude product was purified reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound AN1 as a yellow solid. 1H NMR (400 MHz, d4-MeOD, 300K) δ 2.26 (s, 3H), 2.81 (s, 3H), 2.86 (s, 3H), 2.99 (t, J=12.6 Hz, 2H), 3.04 (s, 3H), 3.13 (m, 2H), 3.51 (m, 2H), 3.76 (s, 2H), 3.92 (d, J=13.3 Hz, 2H), 5.74 (dd, J=2.0 Hz, J=10.1 Hz, 1H), 6.22 (dd, J=2.0 Hz, J=17.0 Hz, 1H), 6.55 (dd, J=10.1 Hz, J=17.0 Hz, 1H), 6.99 (m, 3H), 7.23 (d, J=7.8 Hz, 1H), 7.43 (d, J=8.9 Hz, 2H), 7.57 (s, 1H), 7.62 (d, J=2.0 Hz, 1H), 8.08 (d, J=2.0 Hz, 1H), 9.50 (s, 1H), 9.65 (br s, 1H), 11.93 (s, 1H). MS (ES) C32H36N6O2 requires: 536 found: 537 (M+H)+.
The Example in the following table was prepared according to the procedure described for AN1 (Example 194).
AO1 was prepared from isopropyl 6-amino-5-iodo-4-methylnicotinate and trimethyl((4-methyl-3-nitrophenyl)ethynyl)silane following the general procedure reported in Preparative Example 1. The crude product was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound AO1 as a yellow solid. 1H NMR (400 MHz, d6-DMSO, 300K) δ 1.32 (d, J=6.2 Hz, 6H), 2.27 (s, 3H), 2.30 (s, 3H), 2.84/2.85 (s, 3H), 2.96 (t, J=12.8 Hz, 2H), 3.08 (m, 2H), 3.49 (m, 2H), 3.90 (d, J=13.4 Hz, 2H), 5.12 (septet, J=6.2 Hz, 1H), 5.73 (dd, J=2.0 Hz, J=10.1 Hz, 1H), 6.20 (dd, J=2.0 Hz, J=17.0 Hz, 1H), 6.55 (dd, J=10.1 Hz, J=17.0 Hz, 1H), 6.93 (d, J=9.0 Hz, 2H), 7.05 (d, J=7.9 Hz, 1H), 7.26 (d, J=7.9 Hz, 1H), 7.36 (d, J=9.0 Hz, 2H), 7.58 (s, 1H), 8.60 (s, 1H), 9.49 (s, 1H), 9.59 (br s, 1H), 12.28 (s, 1H). MS (ES) C33H37N5O3 requires: 551 found: 552 (M+H)+.
The Examples in the following table were prepared according to the procedure described for AO1 (Example 198).
To a solution of 3-(3-amino-4-methylphenyl)-2-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylic acid M2 (800 mg, 1.8 mmol, 1.0 eq.) in dry methanol (12 mL) was added thionyl chloride (0.4 mL). The mixture was stirred at 70° C. for 15 h. Solvent were removed and the crude was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound AP1 (306 mg, 0.45 mmol, 25%) as a yellow powder. 1H NMR (400 MHz, d6-DMSO, 300K) δ 2.15 (s, 3H), 2.84 (s, 3H), 2.98 (t, J=12.6 Hz, 2H), 3.11 (m, 2H), 3.49 (d, J=11.8 Hz, 2H), 3.84 (s, 3H), 3.91 (d, J=13.2 Hz, 2H), 6.61 (m, 1H), 6.86 (s, 1H), 6.99 (d, J=9.0 Hz, 2H), 7.06 (d, J=7.6 Hz, 1H), 7.45 (d, J=9.0 Hz, 2H), 8.23 (d, J=2.1 Hz, 1H), 8.80 (d, J=2.1 Hz, 1H), 9.70 (br s, 1H), 12.39 (s, 1H). MS (ES) C27H29N5O2 requires: 455, found: 456 (M+H)+.
To a solution of AP1 (306 mg, 0.45 mmol, 1.0 eq.) in dry THF (24 mL) at 0° C. was added LiAlH4-solution (1M, 1.34 mL, 1.34 mmol, 3.0 eq.). The mixture was stirred 2 h at 0° C. and 0.5 h at RT. The mixture was cooled to 0° C. and again LiAlH4-solution (1M, 0.45 mL, 0.45 mmol, 1.0 eq.) was added. After 1 h aq. sat. NaHCO3-solution was carefully added and then EtOAc was added. The precipitate was filtered off and dried in vacuo yielding the title compound AP2 (25 mg, 0.06 mmol, 13%) as a beige powder. MS (ES) C26H29N50 requires: 427, found: 428 (M+H)+.
To a solution of AP2 (25 mg, 0.06 mmol, 1.0 eq.), DIPEA (30 uL, 0.18 mmol, 3.0 eq.) and HATU (34 mg, 0.09 mmol, 1.5 eq.) in dry DMF (1.5 mL) at 0° C. was added a solution of acrylic acid (4 mg, 0.06 mmol, 1.0 eq.) in dry DMF (0.5 mL). The mixture was stirred for 1 h at 0° C. The mixture was diluted with EtOAc and then was washed with with aq. sat. NaHCO3-solution and brine. The organic phase was dried over MgSO4 and solvents were removed in vacuo. The crude product was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound AP3 (3 mg, 0.004 mmol, 73%) as a yellow solid. 1H NMR (400 MHz, d6-DMSO, 300K) δ 2.24 (s, 3H), 2.84 (s, 3H), 2.97 (t, J=12.6 Hz, 2H), 3.13 (m, 2H), 3.48 (m, 2H), 3.90 (d, J=13.4 Hz, 2H), 4.54 (s, 2H), 5.72 (dd, J=2.0 Hz, J=10.1 Hz, 1H), 6.20 (dd, J=2.0 Hz, J=17.1 Hz, 1H), 6.53 (dd, J=10.1 Hz, J=17.1 Hz, 1H), 6.97 (m, 3H), 6.22 (d, J=7.8 Hz, 1H), 7.43 (d, J=8.9 Hz, 2H), 7.56 (s, 1H), 7.73 (d, J=2.0 Hz, 1H), 8.17 (d, J=2.0 Hz, 1H), 9.50 (s, 1H), 9.65 (br s, 1H), 11.93 (s, 1H). MS (ES) C29H31N5O2 requires: 481 found: 482 (M+H)+.
AQ1 was prepared from 3-iodo-5-nitropyridin-2-amine and tert-butyl (2-methyl-5-((trimethylsilyl)ethynyl)phenyl)carbamate following the general procedure reported in Preparative Example 1. The crude product was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound AQ1 as an orange solid. 1H NMR (400 MHz, d6-DMSO, 300K) δ 1.42 (s, 9H), 2.24 (s, 3H), 2.84 (s, 3H), 3.00 (m, 2H), 3.11 (m, 2H), 3.48 (m, 2H), 3.94 (d, J=13.2 Hz, 2H), 6.95 (dd, J=1.8 Hz, J=7.7 Hz, 1H), 7.01 (d, J=8.9 Hz, 2H), 7.20 (d, J=7.7 Hz, 1H), 7.44 (m, 1H), 7.46 (d, J=8.9 Hz, 2H), 8.47 (d, J=2.4 Hz, 1H), 8.61 (s, 1H), 9.09 (d, J=2.4 Hz, 1H), 9.75 (br s, 1H), 12.83 (s, 1H). MS (ES) C30H34N6O4 requires: 542 found: 543 (M+H)+.
A solution of tert-butyl (2-methyl-5-(2-(4-(4-methylpiperazin-1-yl)phenyl)-5-nitro-1H-pyrrolo[2,3-b]pyridin-3-yl)phenyl)carbamate AQ1 (40 mg, 0.05 mmol, 1.0 eq.) and iron (15 mg, 0.26 mmol, 5.0 eq.) in EtOH (1 mL) and aq. sat. NH4Cl-solution (0.1 mL) was stirred for 3 h at 80° C. The solution was filtered through a pad of Celite®. Solvents were removed in vacuo. The crude was solved in DCM and was washed twice with aq. sat. NaHCO3-solution and once with brine. The organic phase was dried over MgSO4 and solvents were removed in vacuo yielding the desired product AQ2 (23 mg, 0.04 mmol, 85%) as a beige solid. MS (ES) C30H36N6O2 requires: 512, found: 513 (M+H)+.
To a solution of AQ2 (20 mg, 0.04 mmol, 1.0 eq.) and DIPEA (17 uL, 0.10 mmol, 2.50 eq.) in dry DCM (1 mL) at 0° C. was added isobutyryl chloride (4 mg, 0.04 mmol, 1.0 eq.) in dry DCM (0.5 mL). The mixture was stirred for 1 h at 0° C. and 1 h at RT. The mixture was diluted with DCM and then was washed with with aq. sat. NaHCO3-solution and brine. The organic phase was dried over MgSO4 and solvents were removed in vacuo. The crude product was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound AQ3 (20 mg, 0.02 mmol, 63%) as a yellow solid. MS (ES) C34H42N6O3 requires: 582, found: 583 (M+H)+.
A solution of AQ3 (19 mg, 0.02 mmol) and TFA (1 mL) in DCM (4 mL) was stirred for 0.5 h at RT. Solvents were removed in vacuo yielding the title compound AQ4 (23 mg, 0.03 mmol, quant.) as a yellow solid. MS (ES) C29H34N6O requires: 482, found: 483 (M+H)+.
To a solution of AQ4 (23 mg, 0.03 mmol, 1.0 eq.) and DIPEA (47.4 uL, 0.28 mmol, 10.0 eq.) in dry DCM (2 mL) at −78° C. was added acrylolyl chloride (3 mg, 0.03 mmol, 1.0 eq.) in dry DCM (0.5 mL). The mixture was stirred for 15 min at −78° C. and then 15 min at 0° C. Again acrylolyl chloride (3 mg, 0.03 mmol, 1.0 eq.) in dry DCM (0.5 mL) was added. After 15 min a few drops of water were added and the mixture was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound AQ5 (4 mg, 0.005 mmol, 19%) as a yellow solid. 1H NMR (400 MHz, d6-DMSO, 300K) δ 1.10 (d, J=6.8 Hz, 6H), 2.27 (s, 3H), 2.58 (septet, J=6.8 Hz, 1H), 2.85/2.86 (s, 3H), 2.98 (t, J=13.0 Hz, 2H), 3.13 (m, 2H), 3.51 (d, J=12.1 Hz, 2H), 3.91 (d, J=13.3 Hz, 2H), 5.73 (dd, J=2.0 Hz, J=10.2 Hz, 1H), 6.20 (dd, J=2.0 Hz, J=17.0 Hz, 1H), 6.55 (dd, J=10.2 Hz, J=17.0 Hz, 1H), 6.98 (d, J=9.0 Hz, 2H), 7.00 (m, 1H), 7.26 (d, J=8.8 Hz, 1H), 7.43 (d, J=9.0 Hz, 2H), 7.53 (s, 1H), 8.06 (d, J=2.3 Hz, 1H), 8.36 (d, J=2.3 Hz, 1H), 9.51 (s, 1H), 9.67 (br s, 1H), 9.82 (s, 1H), 11.87 (s, 1H). MS (ES) C33H36N6O2 requires: 536 found: 537 (M+H)+.
The Example in the following table was prepared according to the procedure described for AQ5 (Example 200).
AR1 was prepared from isopropyl 6-amino-5-iodonicotinate and ((2,4-dimethyl-5-nitrophenyl)ethynyl)trimethylsilane following the general procedure reported in Preparative Example 1. The crude product was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound AR1 as a yellow solid. 1H NMR (400 MHz, d6-DMSO, 300K) δ 1.31 (d, J=6.2 Hz, 3H), 1.32 (d, J=6.2 Hz, 3H), 1.86 (s, 3H), 2.29 (s, 3H), 2.86/2.87 (s, 3H), 2.99 (t, J=12.8 Hz, 2H), 3.10 (m, 2H), 3.50 (d, J=12.1 Hz, 2H), 3.95 (d, J=13.6 Hz, 2H), 5.15 (septet, J=6.2 Hz, 1H), 5.73 (dd, J=2.0 Hz, J=10.0 Hz, 1H), 6.20 (dd, J=2.0 Hz, J=17.0 Hz, 1H), 6.54 (dd, J=10.0 Hz, J=17.0 Hz, 1H), 7.00 (d, J=8.6 Hz, 2H), 7.22 (s, 1H), 7.43 (d, J=8.6 Hz, 2H), 7.46 (s, 1H), 7.96 (d, J=2.1 Hz, 1H), 8.81 (d, J=2.1 Hz, 1H), 9.51 (s, 1H), 9.68 (br s, 1H), 12.51 (s, 1H). MS (ES) C33H37N5O3 requires: 551 found: 552 (M+H)+.
AS1 was prepared from isopropyl 6-amino-5-iodonicotinate and tert-butyl 3-((trimethylsilyl)ethynyl)benzylcarbamate following the general procedure reported in Preparative Example 83. The crude product was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound AS1 as a yellow solid. 1H NMR (400 MHz, d6-DMSO, 300K) δ 1.34 (d, J=6.2 Hz, 6H), 2.87/2.88 (s, 3H), 3.00 (t, J=12.6 Hz, 2H), 3.13 (m, 2H), 3.51 (m, 2H), 3.94 (d, J=13.5 Hz, 2H), 4.39 (d, J=5.8 Hz, 2H), 5.16 (septet, J=6.2 Hz, 1H), 5.61 (dd, J=2.2 Hz, J=10.2 Hz, 1H), 6.11 (dd, J=2.2 Hz, J=17.0 Hz, 1H), 6.26 (dd, J=10.2 Hz, J=17.0 Hz, 1H), 7.00 (d, J=9.2 Hz, 2H), 7.23 (d, J=7.6 Hz, 1H), 7.27 (d, J=7.6 Hz, 1H), 7.34 (s, 1H), 7.42 (m, 3H), 8.24 (d, J=2.1 Hz, 1H), 8.64 (t, J=5.8 Hz, 1H), 8.83 (d, J=2.1 Hz, 1H), 9.66 (br s, 1H), 12.51 (s, 1H). MS (ES) C32H35N5O3 requires: 537 found: 538 (M+H)+.
AT1 was prepared from isopropyl 6-amino-5-iodonicotinate and ((4-ethyl-3-nitrophenyl)ethynyl)trimethylsilane following the general procedure reported in Preparative Example 1. The crude product was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound AT1 as a yellow solid. 1H NMR (400 MHz, d6-DMSO, 300K) δ 1.18 (t, J=7.5 Hz, 3H), 1.34 (d, J=6.3 Hz, 6H), 2.67 (q, J=7.5 Hz, 2H), 2.87 (s, 3H), 3.01 (t, J=12.6 Hz, 2H), 3.11 (m, 2H), 3.54 (m, 2H), 3.96 (d, J=13.4 Hz, 2H), 5.17 (septet, J=6.3 Hz, 1H), 5.76 (d, J=10.2 Hz, 1H), 6.24 (d, J=17.1 Hz, 1H), 6.58 (dd, J=10.2 Hz, J=17.1 Hz, 1H), 7.02 (d, J=8.5 Hz, 2H), 7.08 (d, J=7.8 Hz, 1H), 7.29 (d, J=7.8 Hz, 1H), 7.46 (d, J=8.5 Hz, 2H), 7.61 (s, 1H), 8.38 (d, J=2.0 Hz, 1H), 8.82 (d, J=2.0 Hz, 1H), 9.95 (s, 1H), 9.69 (br s, 1H), 12.49 (s, 1H). MS (ES) C32H37N5O3 requires: 551 found: 552 (M+H)+.
AU1 was prepared from isopropyl 6-amino-5-iodonicotinate and trimethyl((2-methyl-3-nitrophenyl)ethynyl)silane following the general procedure reported in Preparative Example 1. The crude product was purified by reverse phase RP-HPLC (column: C18), using H2O (0.1% TFA) and ACN (0.1% TFA) as eluents. The desired fractions were lyophilized to yield the title compound AU1 as a yellow solid. 1H NMR (400 MHz, d6-DMSO, 300K) δ 1.31 (d, J=6.2 Hz, 6H), 1.88 (s, 3H), 2.85 (s, 3H), 2.98 (t, J=12.6 Hz, 2H), 3.10 (m, 2H), 3.50 (m, 2H), 3.93 (d, J=13.4 Hz, 2H), 5.14 (septet, J=6.2 Hz, 1H), 5.75 (dd, J=2.0 Hz, J=10.1 Hz, 1H), 6.26 (dd, J=2.0 Hz, J=17.0 Hz, 1H), 6.55 (dd, J=10.1 Hz, J=17.0 Hz, 1H), 6.98 (d, J=9.0 Hz, 2H), 7.10 (d, J=7.8 Hz, 1H), 7.30 (t, J=7.8 Hz, 1H), 7.39 (d, J=9.0 Hz, 2H), 7.61 (d, J=7.8 Hz, 1H), 7.88 (d, J=2.0 Hz, 1H), 8.81 (d, J=2.0 Hz, 1H), 9.58 (s, 1H), 9.68 (br s, 1H), 12.52 (s, 1H). MS (ES) C32H35N5O3 requires: 537 found: 538 (M+H)+.
The Examples in the following table were prepared according to the procedure described for AU1 (Example 207).
The exemplified compounds described herein were tested for activity and were found to have an IC50 value less than 10 uM, particularly less than 500 nM, in one of the following assays:
1. Measurement of HER2 INS YVMA Kinase Activity
This protocol describes how the Lance Kinase Activity Assay was performed to determine IC50 values of compounds of general formula (I) against HER2 INS YVMA. The principle behind this enzymatic assay is based upon the phosphorylation of the Ulight-peptide substrate. It is detected by using a specific EU-labeled anti-phospho peptide antibody. The binding of the Eu labeled anti-phospho peptide antibody to the phosphorylated ULight labeled peptide gives rise to a FRET-signal.
Binding of an inhibitor to the kinase prevents phosphorylation of the Ulight-substrate, resulting in a loss of FRET. In table 2 is summarized the relevant information for the LANCE assay.
The compounds of general formula (I) summarized in Table 3 were serial diluted from a 10 mM DMSO stock solution 1:3 over 8 steps in a total volume of 20 μl.
For every sample, 8 μl of kinase-substrate mix was transferred into a suitable assay plate (e.g. Corning #3673). Compound was added via pintool transfer (10 nl/well) using a Biomek FX robot (BeckmanCoulter). Reaction was started by addition of 2 μl ATP working solution and mixed using variomag teleshaker (Thermo Fischer Scientific). After 1 h incubation at room temperature the reaction was stopped with 10 μl detection mix containing the Eu-labeled phosphospecific antibody and 10 mM EDTA. After a second incubation period of 1 h at room temperature the FRET signal was measured at 340 nm excitation, 665 nm and 615 nm emission (for the ULight-substrate and Eu-AB, respectively) with an Envision spectrophotometer (Perkin Elmer, Waltham, Mass., USA) with 50 μs delay and 300 μs integration time. IC50 values were determined from the sigmoidal dose response curves with the software Quattro Workflow (Quattro GmbH, Munich, Germany).
2. Measurement of Cellular Activity
The CellTiter-Glo Luminescent Cell Viability Assay (Promega) is a homogeneous method of determining the number of viable cells in culture. It is based on quantification of ATP, indicating the presence of metabolically active cells. Cells are seeded on day 1 at cell numbers that assure assay linearity and optimal signal intensity. After incubation for 24 h in humidified chambers at 37° C. and 5% CO2, compounds in DMSO are added at different concentrations. Cells are further incubated for 72 h at 37° C. and 5% CO2. Cells treated with the compound vehicle DMSO are used as positive controls and cells treated with 10 μM Staurosporine serve as negative controls. At day 5 the CellTiter Glo Reagent is prepared according to the instructions of the kit (Promega Inc.): Reagent is mixed 1:1 with cell culture medium. Thereon, mixture and assay plates are equilibrated at room temperature for 20 min. Equal volumes of the reagent-medium-mixture is added to the volume of culture medium present in each well. The plates are mixed at ˜200 rpm for 2 minutes on an orbital shaker. The microplates are then incubated at room temperature for 10 minutes for stabilization of the luminescent signal. Following incubation the luminescence is recorded on a Victor microplate reader (Perkin Elmer) using a 200 ms integration time. The data is then analyzed with Excel using the XLFIT Plugin (dose response Fit 205) for IC50-determination. As quality control the Z′-factor is calculated from 16 positive and negative control values. Only assay results showing a Z′-factor ≥0.5 are used for further analysis.
Table 3 shows activity data in the biochemical Her2 Exon 20 INSYVMA Lance assay and cellular Her2 Exon 20 INSYVMA Ba/F3 CellTiter-Glo and EGFR Exon 20 INSNPH Ba/F3 CellTiter-Glo assays. Inhibition is indicated as IC50 [nM] (“−”=not measured). Compounds having an activity designated as “A” provided an IC50≤100 nM; compounds having an activity designated as “B” provided an 100 nM<IC50≤500 nM; compounds having an activity designated as “C” provided an 500 nM<IC50≤1000 nM; compounds having an activity designated as “D” provided an 1000 nM<IC50≤10000 nM; and compounds having an activity designated as “E” provided an IC50>10000 nM.
Table 4 shows activity data in the biochemical EGFR T790ML858R Lance and EGFR wt Lance assays and the cellular H1975 CellTiter-G, H1781 CellTiter-G and A431 CellTiter-G1 assays. Inhibition is indicated as 1M50 [nM] (“−”=not measured). Compounds having an activity designated as “A” provided an IC50≤100 nM; compounds having an activity designated as “B” provided an 100 nM<IC50≤500 nM; compounds having an activity designated as “C” provided an 500 nM<IC50≤1000 nM; compounds having an activity designated as “D” provided an 1000 nM<IC50≤100000 nM; and compounds having an activity designated as “E” provided an IC50>10000 nM.
3. Metabolic Stability
There are two major groups of enzyme reactions catalyzed by drug metabolizing enzymes, the so called Phase I and Phase II reactions. The basic processes in phase I reactions are oxidation, reduction and/or hydrolysis mostly catalyzed by the cytochrome P450 (CYP) family of enzymes. Exploring the metabolic stability of reference 1 we have observed as a major metabolite the hydrolysis of the acrylamide moiety in the presence of mouse liver microsomes with and without the cofactor NADPH.
The following procedures describe the determination of the in vitro Phase I metabolic stability of test compounds using liver microsomes by measuring compound depletion over time. Test compound at the concentration of 3 μM was incubated with the liver microsomes from the mouse species and the experiment was performed without NADPH. The depletion of the test compounds was measured over time up to 50 minutes at 37° C. by LC-MS/MS. Different compounds were tested under these conditions for microsomal stability (see Table 5). Prevention of hydrolysis of the acrylamide moiety was achieved either by the introduction of substituents like a methyl group (as in Example 1) next to the acrylamide moiety or by modifying the secondary acrylamide of reference 1 to a tertiary acrylamide (like Example 55).
4. SAR
The structure activity relationship (SAR) of the compounds of the present invention as represented by the Formula (Ia and Ib) shows covalent inhibitor as cellular potent mutant-selective ErbB inhibitors. The covalent binding mode, obtained for example through the introduction of an acrylic moiety, is crucial for improved biochemical and cellular activity. The direct comparison of examples from this invention having a acryl moiety for the covalent binding with corresponding molecules having a propionic moiety are showing the improved cellular activities for the covalent binder.
Table 6 shows comparison of covalent inhibitors with the corresponding reversible analogues. In all cases the covalent inhibitor shows improved cellular activities compared to the reversible analogues.
| Number | Date | Country | Kind |
|---|---|---|---|
| 18190603.3 | Aug 2018 | EP | regional |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/EP2019/072564 | 8/23/2019 | WO |
