Patent Application
20140378492
The present invention relates to novel sulfur derivatives, processes for preparing them, pharmaceutical compositions containing them and their use as pharmaceuticals as modulators of chemokine receptors. The invention relates specifically to the use of these compounds and their pharmaceutical compositions to treat disorders associated with chemokine receptor (CCR) modulation.
Chemokines are a group of 7- to 14-kd peptides that play an important role in orchestrating leukocyte recruitment and migration during inflammation, and therefore represent an important target for anti-inflammatory therapies (Wells et al., 2006). They act by binding to seven-transmembrane, G protein-coupled receptors, the chemokine receptors. The chemokine system is complex, with about ˜50 chemokines and 20 chemokine receptors identified in humans, often acting with redundancy, making selection of specific antagonists difficult (Gerard and Rollins, 2001). Genetic knockout strategies have confirmed the importance of chemokines as regulators of immune function, but the deletion of specific chemokines has led to only specific and relatively mild defects in the inflammatory response further emphasizing the complex redundancy of the system. Selectivity is crucial for use of chemokine receptor antagonists in systemic diseases where a single chemokine-receptor system is implicated such as atheroscelorsis where the macrophage/monocyte system is the major player in order to allow a subtle and specific control over immune function (Weisberg et al., 2006; Feria and Diaz Gonzalez et al., 2006).
Many ocular conditions are characterized by inappropriate migration and infiltration of cells such as leukocytes and endothelial cells into the eye with deleterious effects to ocular structures (Wallace et al., 2004). Chemokines have been identified in such diseases and misregulation of the chemokine system is apparent in corneal graft rejection, diabetic retinopathy, age-related macular degeneration (ARMD), chronic inflammatory diseases such as uveitis, dry eye etc. Mice lacking CCR2 or MCP-1 develop features of ARMD with age, including drusen deposits, choroidal neovascularization and photoreceptor atrophy indicating a crucial role for this chemokine and its receptor signaling (Amabati et al., 2003). Thus CCR2 receptor-specific inhibitor might have potential therapeutic benefit in ocular diseases like ARMD. In contrast, various human and animal studies have identified several chemokines in different forms of uveitis, produced both by resident and infiltrating cells, that strongly suggests a prominent role for these molecules in its pathogenesis. Studies in rat and mice models of uveitis have demonstrated up-regulation of monocyte chemoattractant protein-1 (MCP-1), macrophage inflammatory protein-1 (MIP-1), RANTES, stromal derived factor-1 (SDF-1) which are powerful chemoattractants for monocytes and T-cells (Fang et al., 2004; Keino et al., 2003). Similar findings have been reported in peripheral blood mononuclear cells in patients with acute anterior uveitis (AAU), the most common form of human uveitis (Klitgaard et al., 2004). MCP-1 knockout mice and CCR5 knockout mice show reduced endotoxin-induced uveitis, which is the animal model for AAU (Takeuchi et al., 2005; Tuallion et al., 2002). It has also been demonstrated that blocking the chemokine system upstream with the use of NF-κB blockers significantly attenuates experimental AAU in rats (Yang et al., 2005). Blockage of NF-κB results in transcriptional inhibition of multiple chemokines. Given the complexity of pathogenesis in uveitis it is unlikely that a selective inhibition of a chemokine receptor in monotherapy will offer therapeutic benefit. A similar role of multiple chemokines have been shown to be correlated with clinical stage of disease in diabetic retinopathy and dry eye (Meleth et al., 2005; Yamagami et al., 2005). In these ocular diseases the use of broad spectrum chemokine receptor inhibitor which inhibits the function of a wide range of chemokines may be beneficial.
The first broad spectrum chemokine inhibitor (BSCI) to be reported was termed Peptide 3, which was derived from the sequence of human chemokine MCP-1 and was shown to block the migration of monocytes in response to MCP-1, MIP-1, RANTES and SDF-1 (Reckless and Grainger. 1999). A cyclic retro inverse analogue of Peptide 3, constructed of D-amino acids in the reverse sequence, called NR58-3.14.3 was observed to be a more potent chemokine inhibitor (Beech et al., 2001). NR58-3.14.3 has been used to test for anti-inflammatory activities in animal models of atherosclerosis, lung inflammation, irritable bowel syndrome etc (Beech et al., 2001; Grainger and Reckless. 2003; Tokuyama et al., 2005). However there are several disadvantages to using these BSCI as a long-term therapeutic strategy. The known BSCIs which are peptides which have relatively low potency, poor pharmacokinetics, and are unstable in vivo. In addition, systemic use of broad spectrum chemokine receptor inhibitors could potentially lead to deleterious side effects due to their systemic anti-inflammatory activity. However in ocular diseases, a local or topical application would prevent the broad spectrum inhibitor to be taken up systemically. Identification of a small molecule inhibitor of several chemokine receptors could be very useful for treatment of inflammatory ocular diseases. Given the evidence for the role of multiple chemokines in several ocular diseases and these results, we propose that the use of small and large molecule broad spectrum chemokine receptor inhibitors will have utility in the local treatment of ocular inflammatory diseases including, but not limited to, uveitis, dry eye, diabetic retinopathy, allergic eye disease and proliferative retinopathies. Manipulation of multiple chemokines therefore represents a novel therapeutic approach in treating ocular diseases.
WO2008008374 discloses CCR2 inhibitors and methods of use thereof.
WO03/099773 discloses CCR9 inhibitors and methods of use thereof.
U.S. Pat. No. 7,622,583 discloses heteroaryl sulfonamides as antagonists of the CCR2 receptor.
US 2008/0293720 discloses pyridinyl sulfonamide modulators of chemokine receptors.
U.S. Pat. No. 7,393,873 discloses arylsulfonamide derivatives.
We have now discovered a group of novel sulphur derivatives which are potent and selective chemokine receptor modulators. As such, the compounds described herein are useful in treating a wide variety of disorders associated with modulation of chemokine receptors. The term “modulator” as used herein, includes but is not limited to: receptor agonist, antagonist, inverse agonist, inverse antagonist, partial agonist, partial antagonist.
This invention describes compounds of Formula I, which have chemokine receptor biological activity. The compounds in accordance with the present invention are thus of use in medicine, for example in the treatment of humans with diseases and conditions that are alleviated by CCR modulation.
In one aspect, the invention provides a compound having Formula I or a pharmaceutically acceptable salt thereof or stereoisomeric forms thereof, or the individual geometrical isomers, enantiomers, diastereoisomers, tautomers, zwitterions and pharmaceutically acceptable salts thereof:
wherein:
R2 is substituted or unsubstituted C1-6 alkyl, substituted or unsubstituted C3-8 cycloalkyl or is substituted or unsubstituted C3-8 cycloalkenyl;
R6 is substituted or unsubstituted heterocycle, substituted or unsubstituted C3-8 cycloalkyl, substituted or unsubstituted C3-8 cycloalkenyl or is substituted or unsubstituted C6-10 aryl;
R17 is H, substituted or unsubstituted C1-6 alkyl, halogen, substituted or unsubstituted —OC1-6 alkyl, CN, C(O)R19, NR20R21 or hydroxyl;
R18 is H, substituted or unsubstituted C1-6 alkyl, halogen, substituted or unsubstituted —OC1-6 alkyl, CN, C(O)R22, NR23R24 or hydroxyl;
R7 is H, halogen, CN, substituted or unsubstituted —OC1-6 alkyl, substituted or unsubstituted C1-6 alkyl or is substituted or unsubstituted C3-8 cycloalkyl;
R8 is H, substituted or unsubstituted C1-6 alkyl, halogen, substituted or unsubstituted —OC1-6 alkyl, or hydroxyl;
R19 is H, OH or substituted or unsubstituted C1-6 alkyl R20 is H or substituted or unsubstituted C1-6 alkyl;
R21 is H or substituted or unsubstituted C1-6 alkyl;
R22 is H, OH or substituted or unsubstituted C1-6 alkyl
R23 is H or substituted or unsubstituted C1-6 alkyl;
R24 is H or substituted or unsubstituted C1-6 alkyl; and including compounds:
In another aspect, the invention provides a compound having Formula I wherein
R2 is substituted or unsubstituted C1-6 alkyl, substituted or unsubstituted C3-8 cycloalkyl or substituted or unsubstituted C3-8 cycloalkenyl;
R6 is substituted or unsubstituted heterocycle, substituted or unsubstituted C3-8 cycloalkyl, substituted or unsubstituted C3-8 cycloalkenyl or substituted or unsubstituted C6-10 aryl;
R17 is H, substituted or unsubstituted C1-6 alkyl, halogen, substituted or unsubstituted —OC1-6 alkyl, CN, C(O)R19, NR20R21 or hydroxyl;
R18 is H, C1-6 alkyl, halogen, substituted or unsubstituted —OC1-6 alkyl, CN, C(O)R22, NR23R24 or hydroxyl;
R7 is H, halogen, CN, substituted or unsubstituted —OC1-6 alkyl, substituted or unsubstituted C1-6 alkyl or substituted or unsubstituted C3-8 cycloalkyl;
R8 is H, substituted or unsubstituted C1-6 alkyl, halogen, substituted or unsubstituted —OC1-6 alkyl, or hydroxyl;
R19 is H, OH or substituted or unsubstituted C1-6 alkyl;
R20 is H or substituted or unsubstituted C1-6 alkyl;
R21 is H or substituted or unsubstituted C1-6 alkyl;
R22 is H, OH or substituted or unsubstituted C1-6 alkyl;
R23 is H or substituted or unsubstituted C1-6 alkyl; and
R24 is H or substituted or unsubstituted C1-6 alkyl; and
with the provisos that
a). R7, R8, R17 and R18 cannot all be H in same time;
b). when R8 is substituted or unsubstituted C1-6 alkyl, the alkyl group does not contain a carbonyl group directly attached to the phenyl ring;
c). the compound is not of the following structures:
In another aspect, the invention provides a compound having Formula I wherein:
R2 is substituted or unsubstituted C1-6 alkyl, substituted or unsubstituted C3-8 cycloalkyl or substituted or unsubstituted C3-8 cycloalkenyl;
R6 is substituted or unsubstituted heterocycle, substituted or unsubstituted C3-8 cycloalkyl, substituted or unsubstituted C3-8 cycloalkenyl or substituted or unsubstituted C6-10 aryl;
R17 is H, substituted or unsubstituted C1-6 alkyl, halogen, substituted or unsubstituted —OC1-6 alkyl, CN, C(O)R19, NR20R21 or hydroxyl;
R18 is H, substituted or unsubstituted C1-6 alkyl, halogen, substituted or unsubstituted —OC1-6 alkyl, CN, C(O)R22, NR23R24 or hydroxyl;
R7 is H, halogen, CN, substituted or unsubstituted —OC1-6 alkyl, substituted or unsubstituted C1-6 alkyl or substituted or unsubstituted C3-8 cycloalkyl;
R8 is H, substituted or unsubstituted C1-6 alkyl, halogen, substituted or unsubstituted —OC1-6 alkyl, or hydroxyl;
R19 is H, OH or substituted or unsubstituted C1-6 alkyl;
R20 is H or substituted or unsubstituted C1-6 alkyl;
R21 is H or substituted or unsubstituted C1-6 alkyl;
R22 is H, OH or substituted or unsubstituted C1-6 alkyl;
R23 is H or substituted or unsubstituted C1-6 alkyl; and
R24 is H or substituted or unsubstituted C1-6 alkyl; and
with the provisos that
a). R7, R8, R17 and R18 cannot all be H in same time;
b). when R8 is substituted or unsubstituted C1-6 alkyl, the alkyl group does not contain a carbonyl group directly attached to the phenyl ring;
c). the compound is not of the following structure:
In another aspect, the invention provides a compound having Formula I wherein:
R2 is substituted or unsubstituted C1-6 alkyl, substituted or unsubstituted C3-8 cycloalkyl or substituted or unsubstituted C3-8 cycloalkenyl;
R6 is heterocycle, substituted or unsubstituted C3-8 cycloalkyl, substituted or unsubstituted C3-8 cycloalkenyl or substituted or unsubstituted C6-10 aryl;
R17 is H, substituted or unsubstituted C1-6 alkyl, halogen, —OC1-6 alkyl, CN, C(O)R19, NR20R21 or hydroxyl;
R18 is H, substituted or unsubstituted C1-6 alkyl, halogen, substituted or unsubstituted —OC1-6 alkyl, CN, C(O)R22, NR23R24 or hydroxyl;
R7 is H, halogen, CN, substituted or unsubstituted —OC1-6 alkyl, substituted or unsubstituted C1-6 alkyl or substituted or unsubstituted C3-8 cycloalkyl;
R8 is H, substituted or unsubstituted C1-6 alkyl, halogen, —OC1-6 alkyl, or hydroxyl;
R19 is H, OH or substituted or unsubstituted C1-6 alkyl;
R20 is H or substituted or unsubstituted C1-6 alkyl;
R21 is H or substituted or unsubstituted C1-6 alkyl;
R22 is H, OH or substituted or unsubstituted C1-6 alkyl;
R23 is H or substituted or unsubstituted C1-6 alkyl; and
R24 is H or substituted or unsubstituted C1-6 alkyl; and
with the provisos that
a). R7, R8, R17 and R18 cannot all be H. in same time;
b). when R8 is substituted or unsubstituted C1-6 alkyl, the alkyl group does not contain a carbonyl group directly attached to the phenyl ring;
c). the compound is not of the following structures:
In another aspect, the invention provides a compound having Formula I wherein:
R2 is substituted or unsubstituted C1-6 alkyl, substituted or unsubstituted C3-8 cycloalkyl or substituted or unsubstituted C3-8 cycloalkenyl;
R6 is substituted or unsubstituted heterocycle or substituted or unsubstituted C6-10 aryl;
R17 is H, substituted or unsubstituted C1-6 alkyl or halogen;
R18 is H, substituted or unsubstituted C1-6 alkyl or halogen;
R7 is halogen, CN, —OC1-6 alkyl, substituted or unsubstituted C1-6 alkyl or substituted or unsubstituted C3-8 cycloalkyl;
R8 is H, substituted or unsubstituted C1-6 alkyl or halogen; and
with the provisos that:
b). when R8 is substituted or unsubstituted C1-6 alkyl, the alkyl group does not contain a carbonyl group directly attached to the phenyl ring;
c). the compound is not of the following structures:
In another aspect, the invention provides a compound having Formula I wherein:
R2 is substituted or unsubstituted C1-6 alkyl, substituted or unsubstituted C3-8 cycloalkyl or substituted or unsubstituted C3-8 cycloalkenyl;
R6 is substituted or unsubstituted heterocycle or substituted or unsubstituted C6-10 aryl;
R17 is H, substituted or unsubstituted C1-6 alkyl or halogen;
R18 is H, substituted or unsubstituted C1-6 alkyl or halogen;
R7 is halogen, CN, substituted or unsubstituted —OC1-6 alkyl, substituted or unsubstituted C1-6 alkyl or substituted or unsubstituted C3-8 cycloalkyl;
R8 is H, substituted or unsubstituted C1-6 alkyl or halogen.; and
with the provisos that
b). when R8 is substituted or unsubstituted C1-6 alkyl, the alkyl group does not contain a carbonyl group directly attached to the phenyl ring;
c). the compound is not of the following structures:
In another aspect, the invention provides a compound having Formula I wherein:
R2 is substituted or unsubstituted C1-6 alkyl, substituted or unsubstituted C3-8 cycloalkyl or substituted or unsubstituted C3-8 cycloalkenyl;
R6 is substituted or unsubstituted heterocycle or substituted or unsubstituted C6-10 aryl;
R17 is H, substituted or unsubstituted C1-6 alkyl or halogen;
R18 is H, substituted or unsubstituted C1-6 alkyl or halogen;
R7 is halogen, CN, —OC1-6 alkyl, substituted or unsubstituted C1-6 alkyl or substituted or unsubstituted C3-8 cycloalkyl;
R8 is H, substituted or unsubstituted C1-6 alkyl or halogen; and with the proviso that
b). when R8 is substituted or unsubstituted C1-6 alkyl, the alkyl group does not contain a carbonyl group directly attached to the phenyl ring.
In another aspect, the invention provides a compound having Formula I wherein:
R2 is substituted or unsubstituted C1-6 alkyl, substituted or unsubstituted C3-8 cycloalkyl or substituted or unsubstituted C3-8 cycloalkenyl;
R6 is substituted or unsubstituted heterocycle or substituted or unsubstituted C6-10 aryl;
R17 is H, substituted or unsubstituted C1-6 alkyl or halogen;
R18 is H, substituted or unsubstituted C1-6 alkyl or halogen;
R7 is halogen, CN, substituted or unsubstituted —OC1-6 alkyl, substituted or unsubstituted C1-6 alkyl or substituted or unsubstituted C3-8 cycloalkyl;
R8 is H, substituted or unsubstituted C1-6 alkyl or halogen; and with the proviso that
b). when R8 is substituted or unsubstituted C1-6 alkyl, the alkyl group does not contain a carbonyl group directly attached to the phenyl ring.
In another aspect, the invention provides a compound having Formula I wherein:
R2 is substituted or unsubstituted C1-6 alkyl;
R6 is substituted or unsubstituted heterocycle or substituted or unsubstituted phenyl;
R7 is halogen, CN, substituted or unsubstituted —OC1-6 alkyl;
with the proviso that
c). the compound is not of the following structures:
In another aspect, the invention provides a compound having Formula I wherein:
R2 is C1-6 alkyl;
R6 is substituted or unsubstituted heterocycle or substituted or unsubstituted phenyl;
R7 is halogen, CN or substituted or unsubstituted —OC1-6 alkyl;
with the proviso that
c). the compound is not of the following structures:
In another aspect, the invention provides a compound having Formula I wherein:
R2 is substituted or unsubstituted C1-6 alkyl;
R6 is substituted or unsubstituted heterocycle or substituted or unsubstituted phenyl;
R7 is halogen, CN or —OC1-6 alkyl;
In another aspect, the invention provides a compound having Formula I wherein:
R2 is substituted or unsubstituted C1-6 alkyl;
R6 is substituted or unsubstituted heterocycle or substituted or unsubstituted phenyl;
R7 is halogen, CN or —OC1-6 alkyl;
In another aspect, the invention provides a compound having Formula I wherein:
R2 is methyl, isopropyl, 2-hydroxyethyl, methylpropionate, 2-methylpyridine, ethylacetate, N,N-dimethylpropanamide, N-isopropylpropanamide, propamide, hydroxycyclopentyl, ethyl, N,N-dimethylacetamide, N-methylacetamide, 2-aminoethyl, H-imidazol-2-ylmethyl, 1H-imidazol-4-ylmethyl, 2-[(aminocarbonyl)amino]ethyl, tert-butyl pyridin-2-yl-carbamate, 6-aminopyridin-2-yl, 2-oxo-1,3-oxazolidin-5-yl-methyl, 2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)methyl, 3-aminopropyl, N,N-dimethylbutanamide, 1H-pyrazol-3-ylmethyl, methyl-1,3-thiazol-2-yl-acetamide, tert-butyl-1,3-thiazol-2-yl-carbamate, 2-amino-1,3-thiazol-4-yl)methyl, 3-methylpyridine, 3-nitrobenzyl, 3-methoxybenzyl, 5-nitro-1H-pyrazol-3-yl-methyl, 5-amino-1H-pyrazol-3-yl-methyl, 1-propyl-1H-imidazol-4-yl)methyl, tert-butyl-1-oxidopyridin-2-yl-carbamate, 3-hydroxybenzyl, 5-amino-4H-1,2,4-triazol-3-yl)methyl, 2-pyridin-2-ylethyl, 2-(1H-pyrazol-4-yl)ethyl, 2-(3,5-dimethyl-1H-pyrazol-4-yl)ethyl, (2-fluoropyridin-3-yl)methyl, trifluoromethyl, benzyl, 3-nitrobenzyl, 4-nitrobenzyl, 2-aminobenzyl, 3-aminobenzyl or pyrimidin-2-ylmethyl;
R6 is 4-chloro-3-trifluoromethyl-phenyl, 3,4-dichlorophenyl, 3-methoxyphenyl, 4-methyl-3-nitrophenyl, 4-chlorophenyl, 4-chloro-3-methylphenyl, 4-nitro-3-trifluoromethylphenyl, 2,4-difluorophenyl, 4-chloro-2-fluorophenyl, 3-chloro-2-fluorophenyl, 4-isopropylphenyl, 4-bromophenyl, 4-iodophenyl, 3-chlorophenyl, 2-benzofuran, 5-methyl-2-furan, 2-furan or phenyl;
R7 is chlorine, cyano, methoxy or fluorine;
The term “alkyl”, as used herein, refers to saturated, monovalent or divalent hydrocarbon moieties having linear or branched moieties or combinations thereof and containing 1 to 6 carbon atoms. One or more methylene (—CH2—) groups, of the alkyl can be replaced by oxygen, sulfur, carbonyl, sulfoxide, nitrogen, sulfonyl, or by a divalent C3-6 cycloalkyl. Hydrogen atoms on alkyl groups can be substituted by groups including, but not limited to: halogen, —OH, C3-8 cycloalkyl, non-aromatic heterocycles, aromatic heterocycles, C6-10 aryl, —O(C1-6 alkyl), amine groups, amino groups, NO2, amide groups, sulfonamide groups, ester groups, aldehyde groups, carboxylic acids, ketone groups.
The term “cycloalkyl”, as used herein, refers to a monovalent or divalent group of 3 to 8 carbon atoms, derived from a saturated cyclic hydrocarbon. Cycloalkyl groups can be monocyclic or polycyclic. Cycloalkyl can be substituted by groups including, but not limited to: halogen, —OH, C3-8 cycloalkyl, non-aromatic heterocycles, aromatic heterocycles, C6-10 aryl, —O(C1-6 alkyl), amine groups, amino groups, NO2, amide groups, carboxylic acids, sulfonamide groups, ester groups, aldehyde groups, ketone groups.
The term “cycloalkenyl”, as used herein, refers to a monovalent or divalent group of 3 to 8 carbon atoms, derived from a saturated cycloalkyl having one or more double bonds. Cycloalkenyl groups can be monocyclic or polycyclic. Cycloalkenyl groups can be substituted by groups including, but not limited tohalogen, —OH, C3-8 cycloalkyl, non-aromatic heterocycles, aromatic heterocycles, C6-10 aryl, —O(C1-6 alkyl), amine groups, amino groups, NO2, amide groups, sulfonamide groups, carboxylic acids, ester groups, aldehyde groups, ketone groups.
The term “halogen”, as used herein, refers to an atom of chlorine, bromine, fluorine, iodine.
The term “alkenyl”, as used herein, refers to a monovalent or divalent hydrocarbon radical having 2 to 6 carbon atoms, derived from a saturated alkyl, having at least one double bond. C2-6 alkenyl can be in the E or Z configuration. Alkenyl groups can be substituted by C1-3 alkyl.
The term “alkynyl”, as used herein, refers to a monovalent or divalent hydrocarbon radical having 2 to 6 carbon atoms, derived from a saturated alkyl, having at least one triple bond.
The term “heterocycle” as used herein, refers to a 3 to 10 membered ring, which can be aromatic or non-aromatic, saturated or non-saturated, containing at least one heteroatom selected form O or N or S or combinations of at least two thereof, interrupting the carbocyclic ring structure. The heterocyclic ring can be interrupted by a C═O; the S heteroatom can be oxidized. Heterocycles can be monocyclic or polycyclic. Heterocyclic ring moieties can be substituted groups including, but not limited to: halogens, —OH, C3-8 cycloalkyl, non-aromatic heterocycles, aromatic heterocycles, —OC1-6 alkyl, —NH2, —NO2, amides, ethers, esters, ketones, carboxylic acids, aldehydes, sulfonamides groups.
Preferred substituted heterocycle groups are, but not limited to: pyridine, furan, azetidine, thiazol, thiophene, oxazol, pyrazol, isoxazole, 2-oxoindoline, 2-oxo-2,3-dihydro-1,3-benzoxazole, 2-oxo-2H-chromene, imidazole[2,1-b]thiazole, 1-H-pyrazole, indole, imidazole, quinoline, 2-thiophene, 2-benzofuran, 5-methyl-2-furan, 5-oxazolidine-2-one, pyrimidine-2,4(1H,3H)-dione, pyrimidine.
The term “aryl” as used herein, refers to an organic moiety derived from an aromatic hydrocarbon consisting of a ring containing 6 to 10 carbon atoms by removal of one hydrogen. Aryl can be substituted by groups including, but not limited to: halogens, —OH, C3-8 cycloalkyl, non-aromatic heterocycles, aromatic heterocycles, —OC1-6 alkyl, —NH2, —NO2, amides, ethers, esters, carboxylic acids, aldehydes, ketones, sulfonamides groups. Aryl can be monocyclic or bicyclic. Preferred substituted phenyl groups are, but not limited to: 4-chloro-3-trifluoromethyl-phenyl, 3,4-dichlorophenyl, 3-methoxyphenyl, 4-methyl-3-nitrophenyl, 4-chlorophenyl, 4-chloro-3-methylphenyl, nitro-3-trifluoromethylphenyl, 2,4-difluorophenyl, 4-chloro-2-fluorophenyl, 3-chloro-2-fluorophenyl, 4-isopropylphenyl, 4-bromophenyl, 4-iodophenyl, 3-chlorophenyl.
The term “amine” as used herein, represents a group of formula “—NRxRy”, wherein Rx and Ry can be the same or independently H, alkyl, aryl, cycloalkyl, cycloalkenyl, heterocycle as defined above.
The term “amide” as used herein, represents a group of formula “—C(O)NRxRy,” or “—C(O)N(Rx)(Ry)” or “NRxC(O)Ry” wherein Rx and Ry can be the same or independently H, alkyl, aryl, cycloalkyl, cycloalkenyl, heterocycle as defined above.
The term “sulfonamide” as used herein, represents a group of formula “—S(O)2NRxRy” or “NRxRyS(O)2” or “—NRxS(O)2Ry” wherein Rx and Ry can be the same or independently H, alkyl, aryl, cycloalkyl, cycloalkenyl, heterocycle as defined above.
The term “ester” as used herein, represents a group of formula “—C(O)O(Rx)”, wherein Rx is alkyl, aryl, cycloalkyl, cycloalkenyl, heterocycle as defined above.
The term “aldehyde” as used herein, represents a group of formula “—C(O)H”.
The term “ketone” as used herein, represents a group of formula “—C(O)Rx” wherein Rx is C1-6 alkyl.
The term “hydroxyl” as used herein, represents a group of formula “—OH”.
The term “amino” as used herein, represents a group of formula “—NH2”.
The term “carbonyl” as used herein, represents a group of formula “—C(O)”.
The term “carboxyl” as used herein, represents a group of formula “—C(O)O—”.
The term “sulfonyl” as used herein, represents a group of formula “—SO2”.
The term “sulfate” as used herein, represents a group of formula “—O—S(O)2—O—”.
The term “carboxylic acid” as used herein, represents a group of formula “—C(O)ON”.
The term “sulfoxide” as used herein, represents a group of formula “—S═O”.
The term “phosphonic acid” as used herein, represents a group of formula “—P(O)(OH)2”.
The term “phosphoric acid” as used herein, represents a group of formula “—(O)P(O)(OH)2”.
The term “sulphonic acid” as used herein, represents a group of formula “—S(O)2OH”.
The formula “H”, as used herein, represents a hydrogen atom.
The formula “O”, as used herein, represents an oxygen atom.
The formula “N”, as used herein, represents a nitrogen atom.
The formula “S”, as used herein, represents a sulfur atom.
Some compounds of the invention are:
Some compounds of Formula I and some of their intermediates have at least one stereogenic center in their structure. This stereogenic center may be present in an R or S configuration, said R and S notation is used in correspondence with the rules described in Pure Appli. Chem. (1976), 45, 11-13.
The term “pharmaceutically acceptable salts” refers to salts or complexes that retain the desired biological activity of the above identified compounds and exhibit minimal or no undesired toxicological effects. The “pharmaceutically acceptable salts” according to the invention include therapeutically active, non-toxic base or acid salt forms, which the compounds of Formula I are able to form.
The acid addition salt form of a compound of Formula I that occurs in its free form as a base can be obtained by treating the free base with an appropriate acid such as an inorganic acid, for example, a hydrohalic acid, such as hydrochloric acid, hydrobromic acid, sulfuric acid, phosphoric acid, nitric acid and the like; or an organic acid such as for example, acetic, hydroxyacetic, propanoic, lactic, pyruvic, malonic, fumaric acid, maleic acid, oxalic acid, tartaric acid, succinic acid, malic acid, ascorbic acid, benzoic acid, tannic acid, pamoic acid, citric, methylsulfonic, ethanesulfonic, benzenesulfonic, formic and the like (Handbook of Pharmaceutical Salts, P. Heinrich Stahal & Camille G. Wermuth (Eds), Verlag Helvetica Chemica Acta-Zurich, 2002, 329-345).
The base addition salt form of a compound of Formula I that occurs in its acid form can be obtained by treating the acid with an appropriate base such as an inorganic base, for example, sodium hydroxide, magnesium hydroxide, potassium hydroxide, Calcium hydroxide, ammonia and the like; or an organic base such as for example, L-Arginine, ethanolamine, betaine, benzathine, morpholine and the like. (Handbook of Pharmaceutical Salts, P. Heinrich Stahal& Camille G. Wermuth (Eds), Verlag Helvetica Chemica Acta-Zurich, 2002, 329-345).
Compounds of Formula I and their salts can be in the form of a solvate, which is included within the scope of the present invention. Such solvates include for example hydrates, alcoholates and the like.
With respect to the present invention reference to a compound or compounds, is intended to encompass that compound in each of its possible isomeric forms and mixtures thereof unless the particular isomeric form is referred to specifically.
Compounds according to the present invention may exist in different polymorphic forms. Although not explicitly indicated in the above formula, such forms are intended to be included within the scope of the present invention.
The compounds of the invention are indicated for use in treating or preventing conditions in which there is likely to be a component involving the chemokine receptors.
In another embodiment, there are provided pharmaceutical compositions including at least one compound of the invention in a pharmaceutically acceptable carrier.
In a further embodiment of the invention, there are provided methods for treating disorders associated with modulation of chemokine receptors. Such methods can be performed, for example, by administering to a subject in need thereof a pharmaceutical composition containing a therapeutically effective amount of at least one compound of the invention.
These compounds are useful for the treatment of mammals, including humans, with a range of conditions and diseases that are alleviated by CCR modulation. Therapeutic utilities of CCR modulators are skin inflammatory diseases and conditions, including, but are not limited to: rosacea (dilation of the blood vessels just under the skin), sunburn, chronic sun damage, discreet erythemas, psoriasis, atopic dermatitis, menopause-associated hot flashes, hot flashes resulting from orchiectomyatopic dermatitis, photoaging, seborrheic dermatitis, acne, allergic dermatitis, irritant dermatitis, telangiectasia (dilations of previously existing small blood vessels) of the face, rhinophyma (hypertrophy of the nose with follicular dilation), red bulbous nose, acne-like skin eruptions (may ooze or crust), burning or stinging sensation of the face, irritated and bloodshot and watery eyes, cutaneous hyperactivity with dilation of blood vessels of the skin, Lyell's syndrome, Stevens-Johnson syndrome, erythema multiforme minor, erythema multiforme major and other inflammatory skin diseases, actinic keratoses, arsenic keratoses, inflammatory and non-inflammatory acne, ichthyoses and other keratinization and hyperproliferative disorders of the skin, eczema, wound healing.
Therapeutic utilities of CCR modulators are ocular inflammatory diseases including, but not limited to, uveitis, retinal degenerative conditions, angiogenesis, dry eye, Keratitis, allergic eye disease and conditions affecting the posterior part of the eye, such as maculopathies and retinal degeneration including non-exudative age related macular degeneration, exudative age related macular degeneration, choroidal neovascularization, diabetic retinopathy, acute macular neuroretinopathy, central serous chorioretinopathy, cystoid macular edema, and diabetic macular edema; uveitis, retinitis, and choroiditis such as acute multifocal placoid pigment epitheliopathy, Behcet's disease, birdshot retinochoroidopathy, infectious (syphilis, lyme, tuberculosis, toxoplasmosis), intermediate uveitis (pars planitis), multifocal choroiditis, multiple evanescent white dot syndrome (mewds), ocular sarcoidosis, posterior scleritis, serpiginous choroiditis, subretinal fibrosis and uveitis syndrome, Vogt-Koyanagi-and Harada syndrome; vasuclar diseases/exudative diseases such as retinal arterial occlusive disease, central retinal vein occlusion, disseminated intravascular coagulopathy, branch retinal vein occlusion, hypertensive fundus changes, ocular ischemic syndrome, retinal arterial microaneurysms, Coat's disease, parafoveal telangiectasis, hemi-retinal vein occlusion, papillophlebitis, central retinal artery occlusion, branch retinal artery occlusion, carotid artery disease (CAD), frosted branch angiitis, sickle cell retinopathy and other hemoglobinopathies, angioid streaks, familial exudative vitreoretinopathy, and Eales disease; traumatic/surgical conditions such as sympathetic ophthalmia, uveitic retinal disease, retinal detachment, trauma, conditions caused by laser, conditions caused by photodynamic therapy, photocoagulation, hypoperfusion during surgery, radiation retinopathy, and bone marrow transplant retinopathy; proliferative disorders such as proliferative vitreal retinopathy and epiretinal membranes, and proliferative diabetic retinopathy; infectious disorders such as ocular histoplasmosis, ocular toxocariasis, presumed ocular histoplasmosis syndrome (PONS), endophthalmitis, toxoplasmosis, retinal diseases associated with HIV infection, choroidal disease associate with HIV infection, uveitic disease associate with HIV infection, viral retinitis, acute retinal necrosis, progressive outer retinal necrosis, fungal retinal diseases, ocular syphilis, ocular tuberculosis, diffuse unilateral subacute neuroretinitis, and myiasis; genetic disorders such as retinitis pigmentosa, systemic disorders with accosiated retinal dystrophies, congenital stationary night blindness, cone dystrophies, Stargardt's disease and fundus flavimaculatus, Best's disease, pattern dystrophy of the retinal pigmented epithelium, X-linked retinoschisis, Sorsby's fundus dystrophy, benign concentric maculopathy, Bietti's crystalline dystrophy, and pseudoxanthoma elasticum; retinal tears/holes such as retinal detachment, macular hole, and giant retinal tear; tumors such as retinal disease associated with tumors, congenital hypertrophy of the retinal pigmented epithelium, posterior uveal melanoma, choroidal hemangioma, choroidal osteoma, choroidal metastasis, combined hamartoma of the retina and retinal pigmented epithelium, retinoblastoma, vasoproliferative tumors of the ocular fundus, retinal astrocytoma, and intraocular lymphoid tumors; and miscellaneous other diseases affecting the posterior part of the eye such as punctate inner choroidopathy, acute posterior multifocal placoid pigment epitheliopathy, myopic retinal degeneration, and acute retinal pigement epitheliitis.
In still another embodiment of the invention, there are provided methods for treating disorders associated with modulation of chemokine receptors. Such methods can be performed, for example, by administering to a subject in need thereof a therapeutically effective amount of at least one compound of the invention, or any combination thereof, or pharmaceutically acceptable salts, hydrates, solvates, crystal forms and individual isomers, enantiomers, and diastereomers thereof.
The present invention concerns the use of a compound of Formula I or a pharmaceutically acceptable salt thereof, for the manufacture of a medicament for the treatment of ocular inflammatory diseases including, but not limited to, uveitis, dry eye, Keratitis, allergic eye disease and conditions affecting the posterior part of the eye, such as maculopathies and retinal degeneration including non-exudative age related macular degeneration, exudative age related macular degeneration, choroidal neovascularization, diabetic retinopathy, acute macular neuroretinopathy, central serous chorioretinopathy, cystoid macular edema, and diabetic macular edema; uveitis, retinitis, and choroiditis such as acute multifocal placoid pigment epitheliopathy, Behcet's disease, birdshot retinochoroidopathy, infectious (syphilis, lyme, tuberculosis, toxoplasmosis), intermediate uveitis (pars planitis), multifocal choroiditis, multiple evanescent white dot syndrome (mewds), ocular sarcoidosis, posterior scleritis, serpiginous choroiditis, subretinal fibrosis and uveitis syndrome, Vogt-Koyanagi-and Harada syndrome; vasuclar diseases/exudative diseases such as retinal arterial occlusive disease, central retinal vein occlusion, disseminated intravascular coagulopathy, branch retinal vein occlusion, hypertensive fundus changes, ocular ischemic syndrome, retinal arterial microaneurysms, Coat's disease, parafoveal telangiectasis, hemi-retinal vein occlusion, papillophlebitis, central retinal artery occlusion, branch retinal artery occlusion, carotid artery disease (CAD), frosted branch angiitis, sickle cell retinopathy and other hemoglobinopathies, angioid streaks, familial exudative vitreoretinopathy, and Eales disease; traumatic/surgical conditions such as sympathetic ophthalmia, uveitic retinal disease, retinal detachment, trauma, conditions caused by laser, conditions caused by photodynamic therapy, photocoagulation, hypoperfusion during surgery, radiation retinopathy, and bone marrow transplant retinopathy; proliferative disorders such as proliferative vitreal retinopathy and epiretinal membranes, and proliferative diabetic retinopathy; infectious disorders such as ocular histoplasmosis, ocular toxocariasis, presumed ocular histoplasmosis syndrome (PONS), endophthalmitis, toxoplasmosis, retinal diseases associated with HIV infection, choroidal disease associate with HIV infection, uveitic disease associate with HIV infection, viral retinitis, acute retinal necrosis, progressive outer retinal necrosis, fungal retinal diseases, ocular syphilis, ocular tuberculosis, diffuse unilateral subacute neuroretinitis, and myiasis; genetic disorders such as retinitis pigmentosa, systemic disorders with accosiated retinal dystrophies, congenital stationary night blindness, cone dystrophies, Stargardt's disease and fundus flavimaculatus, Best's disease, pattern dystrophy of the retinal pigmented epithelium, X-linked retinoschisis, Sorsby's fundus dystrophy, benign concentric maculopathy, Bietti's crystalline dystrophy, and pseudoxanthoma elasticum; retinal tears/holes such as retinal detachment, macular hole, and giant retinal tear; tumors such as retinal disease associated with tumors, congenital hypertrophy of the retinal pigmented epithelium, posterior uveal melanoma, choroidal hemangioma, choroidal osteoma, choroidal metastasis, combined hamartoma of the retina and retinal pigmented epithelium, retinoblastoma, vasoproliferative tumors of the ocular fundus, retinal astrocytoma, and intraocular lymphoid tumors; and miscellaneous other diseases affecting the posterior part of the eye such as punctate inner choroidopathy, acute posterior multifocal placoid pigment epitheliopathy, myopic retinal degeneration, and acute retinal pigement epitheliitis.
The actual amount of the compound to be administered in any given case will be determined by a physician taking into account the relevant circumstances, such as the severity of the condition, the age and weight of the patient, the patient's general physical condition, the cause of the condition, and the route of administration.
The patient will be administered the compound orally in any acceptable form, such as a tablet, liquid, capsule, powder and the like, or other routes may be desirable or necessary, particularly if the patient suffers from nausea. Such other routes may include, without exception, transdermal, parenteral, subcutaneous, intranasal, via an implant stent, intrathecal, intravitreal, topical to the eye, back to the eye, intramuscular, intravenous, and intrarectal modes of delivery. Additionally, the formulations may be designed to delay release of the active compound over a given period of time, or to carefully control the amount of drug released at a given time during the course of therapy.
In another embodiment of the invention, there are provided pharmaceutical compositions including at least one compound of the invention in a pharmaceutically acceptable carrier thereof. The phrase “pharmaceutically acceptable” means the carrier, diluent or excipient must be compatible with the other ingredients of the formulation and not deleterious to the recipient thereof.
Pharmaceutical compositions of the present invention can be used in the form of a solid, a solution, an emulsion, a dispersion, a patch, a micelle, a liposome, and the like, wherein the resulting composition contains one or more compounds of the present invention, as an active ingredient, in admixture with an organic or inorganic carrier or excipient suitable for enteral or parenteral applications. Invention compounds may be combined, for example, with the usual non-toxic, pharmaceutically acceptable carriers for tablets, pellets, capsules, suppositories, solutions, emulsions, suspensions, and any other form suitable for use. The carriers which can be used include glucose, lactose, gum acacia, gelatin, mannitol, starch paste, magnesium trisilicate, talc, corn starch, keratin, colloidal silica, potato starch, urea, medium chain length triglycerides, dextrans, and other carriers suitable for use in manufacturing preparations, in solid, semisolid, or liquid form. In addition auxiliary, stabilizing, thickening and coloring agents and perfumes may be used. Invention compounds are included in the pharmaceutical composition in an amount sufficient to produce the desired effect upon the process or disease condition.
Pharmaceutical compositions containing invention compounds may be in a form suitable for oral use, for example, as tablets, troches, lozenges, aqueous or oily suspensions, dispersible powders or granules, emulsions, hard or soft capsules, or syrups or elixirs. Compositions intended for oral use may be prepared according to any method known in the art for the manufacture of pharmaceutical compositions and such compositions may contain one or more agents selected from the group consisting of a sweetening agent such as sucrose, lactose, or saccharin, flavoring agents such as peppermint, oil of wintergreen or cherry, coloring agents and preserving agents in order to provide pharmaceutically elegant and palatable preparations. Tablets containing invention compounds in admixture with non-toxic pharmaceutically acceptable excipients may also be manufactured by known methods. The excipients used may be, for example, (1) inert diluents such as calcium carbonate, lactose, calcium phosphate or sodium phosphate; (2) granulating and disintegrating agents such as corn starch, potato starch or alginic acid; (3) binding agents such as gum tragacanth, corn starch, gelatin or acacia, and (4) lubricating agents such as magnesium stearate, stearic acid or talc. The tablets may be uncoated or they may be coated by known techniques to delay disintegration and absorption in the gastrointestinal tract and thereby provide a sustained action over a longer period. For example, a time delay material such as glyceryl monostearate or glyceryl distearate may be employed.
In some cases, formulations for oral use may be in the form of hard gelatin capsules wherein the invention compounds are mixed with an inert solid diluent, for example, calcium carbonate, calcium phosphate or kaolin. They may also be in the form of soft gelatin capsules wherein the invention compounds are mixed with water or an oil medium, for example, peanut oil, liquid paraffin or olive oil.
The pharmaceutical compositions may be in the form of a sterile injectable suspension. This suspension may be formulated according to known methods using suitable dispersing or wetting agents and suspending agents. The sterile injectable preparation may also be a sterile injectable solution or suspension in a non-toxic parenterally-acceptable diluent or solvent, for example, as a solution in 1,3-butanediol.
Sterile, fixed oils are conventionally employed as a solvent or suspending medium. For this purpose any bland fixed oil may be employed including synthetic mono- or diglycerides, fatty acids (including oleic acid), naturally occurring vegetable oils like sesame oil, coconut oil, peanut oil, cottonseed oil, etc., or synthetic fatty vehicles like ethyl oleate or the like. Buffers, preservatives, antioxidants, and the like can be incorporated as required.
Invention compounds and their pharmaceutically-acceptable salts may be administered through different routes, including but not limited to topical eye drops, direct injection, application at the back of the eye or formulations that may further enhance the long duration of actions such as a slow releasing pellet, suspension, gel, or sustained delivery devices such as any suitable drug delivery system (DDS) known in the art. While topical administration is preferred, this compound may also be used in an intraocular implant as described in U.S. U.S. Pat. No. 7,931,909.
Invention compounds may also be administered in the form of suppositories for rectal administration of the drug. These compositions may be prepared by mixing the invention compounds with a suitable non-irritating excipient, such as cocoa butter, synthetic glyceride esters of polyethylene glycols, which are solid at ordinary temperatures, but liquefy and/or dissolve in the rectal cavity to release the drug.
Since individual subjects may present a wide variation in severity of symptoms and each drug has its unique therapeutic characteristics, the precise mode of administration and dosage employed for each subject is left to the discretion of the practitioner.
The compounds and pharmaceutical compositions described herein are useful as medicaments in mammals, including humans, for treatment of diseases and/or alleviations of conditions which are responsive to treatment by agonists or functional antagonists of chemokine receptors. Thus, in further embodiments of the invention, there are provided methods for treating a disorder associated with modulation of chemokine receptors. Such methods can be performed, for example, by administering to a subject in need thereof a pharmaceutical composition containing a therapeutically effective amount of at least one invention compound. As used herein, the term “therapeutically effective amount” means the amount of the pharmaceutical composition that will elicit the biological or medical response of a subject in need thereof that is being sought by the researcher, veterinarian, medical doctor or other clinician. In some embodiments, the subject in need thereof is a mammal. In some embodiments, the mammal is human.
The present invention concerns also processes for preparing the compounds of Formula I. The compounds of formula I according to the invention can be prepared analogously to conventional methods as understood by the person skilled in the art of synthetic organic chemistry. The synthetic schemes set forth below, illustrate how compounds according to the invention can be made. Those skilled in the art will be able to routinely modify and/or adapt Scheme 1 to synthesize any compounds of the invention covered by Formula I.
The described sulfur derivatives were prepared by general routes as shown in Scheme 1. In one route, an appropriately substituted 2-amino-benzenethiol such as Intermediate A can react with an electrophile such as a halide, tosylate, mesylate, enone, 2-enoate etc. in the presence of an acid or base to prepare sulfide Intermediate B. Alternatively, sulfide Intermediate B can be prepared by treatment of Intermediate A with an alcohol under Mitsunobu conditions. Reaction of Intermediate B with a sulfonyl chloride provides the sulfonamide of Formula I wherein R5 is S. Further, upon treatment with an oxidant such as meta-chloroperoxybenzoic acid, the compound of Formula I wherein R5 is S affords the compound wherein R5 is S(O) or
In another route, di-sulfide Intermediate E type can be obtained through oxidation of an Intermediate A type. Reaction of Intermediate E with a, sulfonyl chloride provides sulfonamide Intermediate F. In situ or stepwise reduction of Intermediate F using polymer bound triphenylphosphine or sodium borohydride, respectively, followed by reaction of the resulting benzenethiol with an electrophile affords the sulfonamide of Formula I wherein R5 is S.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention claimed. As used herein, the use of the singular includes the plural unless specifically stated otherwise.
It will be readily apparent to those skilled in the art that some of the compounds of the invention may contain one or more asymmetric centers, such that the compounds may exist in enantiomeric as well as in diastereomeric forms. Unless it is specifically noted otherwise, the scope of the present invention includes all enantiomers, diastereomers and racemic mixtures. Some of the compounds of the invention may form salts with pharmaceutically acceptable acids or bases, and such pharmaceutically acceptable salts of the compounds described herein are also within the scope of the invention.
The present invention includes all pharmaceutically acceptable isotopically enriched compounds. Any compound of the invention may contain one or more isotopic atoms enriched or different than the natural ratio such as deuterium 2H (or D) in place of protium 1H (or H) or use of 13C enriched material in place of 12C and the like. Similar substitutions can be employed for N, O and S. The use of isotopes may assist in analytical as well as therapeutic aspects of the invention. For example, use of deuterium may increase the in vivo half-life by altering the metabolism (rate) of the compounds of the invention. These compounds can be prepared in accord with the preparations described by use of isotopically enriched reagents.
As will be evident to those skilled in the art, individual isomeric forms can be obtained by separation of mixtures thereof in conventional manner. For example, in the case of diasteroisomeric isomers, chromatographic separation may be employed.
Compound names were generated with ACD version 8 and some intermediates' and reagents' names used in the examples were generated with software such as Chem Bio Draw Ultra version 12.0 or Auto Nom 2000 from MDL ISIS Draw 2.5 SP1. In general, characterization of the compounds is performed according to the following methods:
NMR spectra are recorded on Varian 600 or Varian 300, in the indicated solvent at ambient temperature; chemical shifts in [ppm], coupling constants in [Hz].
All the reagents, solvents, catalysts for which the synthesis is not described are purchased from chemical vendors such as Sigma Aldrich, Fluka, Bio-Blocks, Combi-blocks, TCI, VWR, Lancaster, Oakwood, Trans World Chemical, Alfa, Fisher, Maybridge, Frontier, Matrix, Ukrorgsynth, Toronto, Ryan Scientific, SiliCycle, Anaspec, Syn Chem, Chem-Impex, MIC-scientific, Ltd; however some known intermediates, were prepared according to published procedures. Solvents were purchased from commercial sources in appropriate quality and used as received. Air and/or moisture-sensitive reactions were run under an Ar- or N2-atmosphere.
Usually the compounds of the invention were purified by chromatography: CombiFlash Companion and RediSep Rf silica gel 60 (0.04-0.063 mm); Preparative thin layer chromatography (PTLC): Analtech (silica gel 60 F254, 500 or 1000 μm).
The following abbreviations are used in the examples:
The following examples are for illustrative purposes only and are not intended, nor should they be construed as limiting the invention in any manner. Those skilled in the art will appreciate that variations and modifications of the following examples can be made without exceeding the spirit or scope of the invention.
A mixture of 2-amino-4-chlorobenzenethiol (CAS 1004-00-8) (1.1 g, 7.1 mmol), 4-(chloromethyl)-1H-imidazole hydrochloride (721 mg, 4.71 mmol) and K2CO3 (3.2 g, 23.6 mmol) in DMF (10 ml) was stirred at room temperature over night. The reaction mixture was poured into water (50 ml) and extracted with ethyl acetate (2×50 ml). The organic layer was washed with brine, dried over Na2SO4, concentrated in vacuo. The crude product was purified by column chromatography on silica gel (0→100% ethyl acetate in hexane) to give Intermediate 1 as a solid (1.0 g, 60%).
1H NMR (300 MHz, CD3OD) δ 7.58 (s, 1H), 7.06 (d, J=8.20 Hz, 1H), 6.73 (d, J=2.34 Hz, 1H), 6.65 (s, 1H), 6.48 (dd, J=2.34, 8.20 Hz, 1H), 3.86 (s, 2H).
A mixture of Intermediate 1 (300 mg, 1.26 mmol) and 1-benzofuran-2-sulfonyl chloride (273 mg, 1.26 mmol) in pyridine (4 ml) was heated at 100° C. overnight. Pyridine was removed under reduced pressure and the residue was purified by column chromatography on silica gel (10% MeOH in CH2Cl2) to give Compound 1 (157 mg, 30%).
1H NMR (600 MHz, acetone-d6) δ 7.94 (s, 1H), 7.73 (d, J=7.92 Hz, 1H), 7.64 (d, J=2.35 Hz, 1H), 7.56 (d, J=8.51 Hz, 1H), 7.52 (d, J=8.22 Hz, 1H), 7.44-7.49 (m, 1H), 7.42 (s, 1H), 7.28-7.37 (m, 1H), 7.11 (dd, J=2.35, 8.22 Hz, 1H), 6.97 (s, 1H), 3.91 (s, 2H).
Following General Procedure B, the title compound (243 mg, 60%) was prepared from 5-chloro-2-(methylthio)aniline (CAS 16423-54-4) (200 mg, 1.15 mmol) and 1-benzofuran-2-sulfonyl chloride (249 mg, 1.152 mmol).
1H NMR (600 MHz, acetone-d6) δ 7.75 (d, J=7.92 Hz, 1H), 7.60 (d, J=8.51 Hz, 1H), 7.48-7.54 (m, 2H), 7.47 (d, J=2.35 Hz, 1H), 7.29-7.38 (m, 2H), 7.22 (dd, J=2.35, 8.51 Hz, 1H), 2.22 (s, 3H).
To a solution of Compound 2 (194 mg, 0.554 mmol) in CH2Cl2 (6 ml) at 0° C. was added mCPBA (111 mg, ˜0.554 mmol). After it was stirred for 30 min at 0° C., the mixture was separated into two portions. One portion (2 ml) was concentrated in vacuo and purified by column chromatography on silica gel (0→100% ethyl acetate in hexane followed by 0→10% MeOH in CH2Cl2) to give the title compound as a solid (35 mg, 52%).
Alternatively, the title compound can be prepared by treating Compound 2 with 1 equivalent of NalO4 in MeOH/CH3CN and H2O at 0° C. to room temperature.
In another alternative procedure, the title compound can be prepared by treating Compound 2 with 1-1.4 equivalent of Oxone® in MeOH/CH3CN and H2O at room temperature.
1H NMR (600 MHz, CDCl3) δ 7.74 (d, J=1.76 Hz, 1H), 7.71 (d, J=8.22 Hz, 1H), 7.52-7.59 (m, 2H), 7.49 (td, J=1.17, 7.78 Hz, 1H), 7.32-7.39 (m, 1H), 7.25 (d, J=8.22 Hz, 1H), 7.15 (dd, J=1.91, 8.36 Hz, 1H), 2.88 (s, 3H).
To the other portion (4 ml) of solution from Compound 3 was added mCPBA (111 mg, 0.554 mmol) and the reaction was stirred at room temperature for 1 h. The mixture was concentrated in vacuo and the residue was purified by column chromatography on silica gel (0→100% ethyl acetate in hexane) to give the title compound as a solid (75 mg, 53%). Alternatively, the title compound can be prepared by treating Compound 2 with 2-3 equivalents of mCPBA at room temperature.
In another alternative procedure, the title compound can be prepared by treating Compound 2 with 3 equivalents of Oxone® in MeOH/CH3CN and H2O at room temperature.
1H NMR (600 MHz, CDCl3) δ 9.43 (s, 1H), 7.88 (d, J=1.76 Hz, 1H), 7.81 (d, J=8.51 Hz, 1H), 7.72 (d, J=7.92 Hz, 1H), 7.61 (s, 1H), 7.47-7.57 (m, 2H), 7.34-7.40 (m, 1H), 7.26 (s, 1H), 7.23 (dd, J=2.05, 8.51 Hz, 1H), 3.05 (s, 3H).
Following General Procedure C, the title compound (914 mg, 84%) was prepared from 5-chloro-2-(methylthio)aniline (1 g, 5.758 mmol).
1H NMR (300 MHz, CD3OD) δ 7.32 (d, J=8.20 Hz, 1H), 6.81 (d, J=2.05 Hz, 1H), 6.72 (dd, J=1.76, 8.20 Hz, 1H), 2.86 (s, 3H).
Following General Procedure B, the title compound (52 mg, 21%) was prepared from 5-chloro-2-(methylsulfinyl)aniline (Intermediate 2) (120 mg, 0.635 mmol) and 3,4-dichlorobenzene-1-sulfonyl chloride (156 mg, 0.635 mmol).
1H NMR (300 MHz, CD3OD) δ 7.87 (d, J=1.76 Hz, 1H), 7.55-7.70 (m, 2H), 7.38 (s, 1H), 7.17-7.27 (m, 2H), 2.22 (s, 3H).
Following General Procedure C, the title compound (28 mg, 52%) was prepared from 3,4-dichloro-N-[5-chloro-2-(methylthio)phenyl]benzenesulfonamide (52 mg, 0.136 mmol).
1H NMR (300 MHz, acetone-d6) δ 10.70 (br. s., 1H), 8.06 (s, 1H), 7.86 (s, 2H), 7.44-7.59 (m, 2H), 7.34 (dd, J=1.90, 8.35 Hz, 1H), 2.84 (s, 3H).
Following General Procedure B and C, the title compound (90 mg) was prepared from 5-chloro-2-(methylthio)aniline and 4-chloro-3-methylbenzene-1-sulfonyl chloride.
1H NMR (600 MHz, CDCl3) δ 10.62 (s, 1H), 7.82 (d, J=2.05 Hz, 1H), 7.71 (dd, J=1.91, 8.36 Hz, 1H), 7.63 (d, J=2.05 Hz, 1H), 7.48 (d, J=8.51 Hz, 1H), 7.02-7.15 (m, 2H), 2.81 (s, 3H), 2.43 (s, 3H).
Following General Procedure B and C, the title compound (43 mg) was prepared from 5-chloro-2-(methylthio)aniline and 4-nitro-3-(trifluoromethyl)benzene-1-sulfonyl chloride.
1H NMR (600 MHz, acetone-d6) δ 8.25-8.35 (m, 2H), 8.11 (d, J=8.22 Hz, 1H), 7.39-7.48 (m, 2H), 6.75 (dd, J=2.05, 8.22 Hz, 1H), 2.70 (s, 3H).
Following General Procedure B, the title compound (380 mg, 66%) was prepared from 5-chloro-2-(methylthio)aniline (273 mg, 1.57 mmol) and 4-chloro-2-fluorobenzene-1-sulfonyl chloride (360 mg, 1.57 mmol).
1H NMR (300 MHz, acetone-d6) δ 8.77 (br. s., 1H), 7.84 (t, J=8.06 Hz, 1H), 7.53 (dd, J=1.90, 9.82 Hz, 1H), 7.35-7.48 (m, 3H), 7.25 (dd, J=2.20, 8.35 Hz, 1H), 2.34 (s, 3H).
Following General Procedure B and D, the title compound (95 mg, 36%) was prepared from 5-chloro-2-[(1H-imidazol-4-ylmethyl)thio]aniline (301 mg, 1.26 mmol) and 4-chloro-3-(trifluoromethyl)benzene-1-sulfonyl chloride (351 mg, 1.26 mmol).
1H NMR (600 MHz, acetone-d6) δ 8.27 (s, 1H), 8.15 (d, J=8.22 Hz, 1H), 7.81 (br. s., 1H), 7.73 (d, J=8.51 Hz, 1H), 7.68 (d, J=8.51 Hz, 1H), 7.30 (s, 1H), 6.91 (dd, J=1.47, 8.51 Hz, 1H), 4.56 (br. s., 2H).
A solution of 4-(chloromethyl)-1,3-thiazol-2-amine hydrochloride (530 mg, 2.86 mmol), di-tert-butyl dicarbonate (750 mg, 3.44 mmol), triethylamine (0.6 ml, 4.30 mmol) and
DMAP (cat. amount) in THF (10 ml) was stirred at room temperature overnight. The mixture was diluted with ethyl acetate. washed with water and brine, dried over Na2SO4, and concentrated in vacuo. The residue was purified by column chromatography (30% ethyl acetate in hexane) to give the title compound as a solid (391 mg, 45%).
1H NMR (600 MHz, CD3OD) δ 7.02 (s, 1H), 4.56 (s, 2H), 1.54 (s, 9H).
Following General Procedure A, the title compound (588 mg, 67%) was prepared from 2-amino-4-chlorobenzenethiol (376 mg, 2.36 mmol), tert-butyl [4-(chloromethyl)-1,3-thiazol-2-yl]carbamate (391 mg, 1.57 mmol) and K2CO3 (1.08 g, 3.45 mmol) in DMF (10 ml).
1H NMR (300 MHz, acetone-d6) δ 10.18 (br. s., 1H), 7.17 (d, J=8.21 Hz, 1H), 6.79 (d, J=2.34 Hz, 1H), 6.62 (s, 1H), 6.51 (dd, J=2.05, 8.20 Hz, 1H), 5.30 (br. s., 1H), 3.88 (s, 2H), 1.53 (s, 9H).
Following General Procedure B, the title compound (380 mg, 54%) was prepared from tert-butyl (4-{[(2-amino-4-chlorophenyl)thio]methyl}-1,3-thiazol-2-yl)carbamate (640 mg, 1.72 mmol) and 1-benzofuran-2-sulfonyl chloride (372 mg, 1.72 mmol) in pyridine (5 ml).
1H NMR (300 MHz, acetone-d6) δ 11.20 (br. s., 1H), 9.82 (br. s., 1H), 7.78 (d, J=7.91 Hz, 2H), 7.67 (d, J=2.34 Hz, 1H), 7.62 (s, 1H), 7.45-7.60 (m, 3H), 7.31-7.43 (m, 1H), 7.07-7.22 (m, 1H), 6.77 (s, 1H), 3.93 (s, 2H), 1.55 (s, 9H).
A solution of tert-butyl {4-[({2-[(1-benzofuran-2-ylsulfonyl)amino]-4-chlorophenyl}thio)methyl]-1,3-thiazol-2-yl}carbamate Compound 11 (62 mg, 0.11 mmol), TFA (0.2 ml) in CH2Cl2 (1 ml) was stirred overnight. The solvent was removed in vacuo and the crude product was purified by column chromatography on silica gel (50% ethyl acetate in hexane) to afford the title compound (45 mg, 88%).
1H NMR (600 MHz, acetone-d6) δ 8.78 (br. s., 1H), 7.77 (d, J=7.92 Hz, OH), 7.55-7.66 (m, 3H), 7.45-7.55 (m, 2H), 7.29-7.41 (m, 1H), 7.17 (dd, J=2.20, 8.36 Hz, 1H), 6.33 (s, 1H), 3.90 (s, 2H).
Following General Procedure B and C, the title compound was prepared from 5-chloro-2-(methylthio)aniline and 4-chloro-3-(trifluoromethyl)benzene-1-sulfonyl chloride.
1H NMR (300 MHz, CD3OD) δ 8.07 (s, 1H), 7.96 (d, J=8.50 Hz, 1H), 7.82 (d, J=8.21 Hz, 1H), 7.76 (d, J=8.50 Hz, 1H), 7.41 (d, J=7.91 Hz, 1H), 7.07 (s, 1H), 2.83 (s, 3H).
To a solution of 2,2′-dithiobis(5-chloroaniline) (CAS 29124-55-8)(1.59 g, 5.0 mmol) in pyridine (20 ml) was added 4-chloro-3-(trifluoromethyl)benzene-1-sulfonyl chloride (2.76 g, 10.0 mmol) and the reaction was stirred at room temperature for 16 h. Additional 4-chloro-3-(trifluoromethyl)benzene-1-sulfonyl chloride (2.76 g, 10.0 mmol) and pyridine (20 ml) was added, and the reaction was stirred for 20 h. The mixture was concentrated in vacuo and H2O was added. A gum-like semi-solid was formed. After decanting H2O, the semi-solid was rinsed with H2O (×2), taken in EtOAc, extracted with 1M HCl (×2), washed with H2O, brine, dried over Na2SO4, and concentrated in vacuo to give a brown thick syrup (6.5 g). To a solution of the crude syrup in methanol (100 ml) was added 4M NaOH (12 ml), and the mixture was heated at 100° C. for 15 min, cooled to room temperature, quenched slowly with 1M HCl (˜50 ml) with stirring and cooling to pH 4-5. The volume of the resulting suspension was reduced in vacuo, followed by extraction with EtOAc. The organic layer was washed with brine, dried over Na2SO4, and concentrated in vacuo. The crude solid containing sulfonic acid was pulverized in saturated NaHCO3, and filtered, rinsed with minimal amount of diethyl ether to yield the title compound as an off-white solid (3.11 g). 1H NMR (600 MHz, CD3OD) δ 8.08 (d, J=2.05 Hz, 2H), 7.93 (dd, J=2.20, 8.36 Hz, 2H), 7.81 (d, J=8.51 Hz, 2H), 7.22 (d, J=2.05 Hz, 2H), 7.18-7.20 (m, 2H), 7.10 (d, J=8.51 Hz, 2H).
To a solution of N,N′-[dithiobis(5-chloro-2,1-phenylene)]bis[4-chloro-3-(trifluoromethyl)benzenesulfonamide] Intermediate 5 (0.32 g, 0.40 mmol) in CH2Cl2 (10 ml) was added saturated aqueous NaHCO3 (1.0 ml), polymer-bound triphenylphosphine (˜3 mmol/g triphenylphosphine loading, 0.27 g, 0.80 mmol), and ethyl iodide (64 μl, 0.80 mmol). The reaction was stirred at room temperature for 2 h and was diluted with EtOAc, filtered, and washed with brine, dried over Na2SO4, and concentrated. The residue was purified by column chromatography on silica gel (0→25% ethyl acetate in hexane) to yield the title compound as a yellow syrup (204 mg, 59%).
1H NMR (600 MHz, CDCl3) δ 8.12 (d, J=2.35 Hz, 1H), 7.88 (dd, J=2.35, 8.22 Hz, 1H), 7.82 (br. s., 1H), 7.64 (d, J=2.35 Hz, 1H), 7.59 (d, J=8.51 Hz, 1H), 7.32 (d, J=8.22 Hz, 1H), 7.06 (dd, J=2.20, 8.36 Hz, 1H), 2.60 (q, J=7.34 Hz, 2H), 1.10 (t, J=7.34 Hz, 3H).
Following General Procedure C, the title compound was prepared from 4-chloro-N-[5-chloro-2-(ethylthio)phenyl]-3-(trifluoromethyl)benzenesulfonamide.
1H NMR (600 MHz, CD3OD) δ 8.15 (d, J=2.35 Hz, 1H), 8.00 (dd, J=2.20, 8.36 Hz, 1H), 7.72 (d, J=8.51 Hz, 1H), 7.44 (d, J=8.51 Hz, 1H), 7.27 (d, J=2.05 Hz, 1H), 7.01 (dd, J=2.05, 8.51 Hz, 1H), 3.10-3.18 (m, 1H), 2.89-2.97 (m, 1H), 1.11 (t, J=7.34 Hz, 3H).
A mixture of ethyl 6-aminopyridine-2-carboxylate (1.57 g, 9.43 mmol), DMAP (1.12 g, 9.18 mmol), and di-tert-butyl dicarbonate (2.46 g, 11.3 mmol) in THF (45 ml) was heated at 60° C. for 16 h. The solvent was removed and the residue was purified by chromatography on silica gel (10→15% ethyl acetate in hexane) to yield the title compound as a white solid (2.50 g, 100%).
To a solution of ethyl 6-[(tert-butoxycarbonyl)amino]pyridine-2-carboxylate (456 mg, 1.71 mmol) in anhydrous ethanol (20 ml) was added pulverized CaCl2 (395 mg, 3.42 mmol). The suspension was stirred and cooled to 0° C. and NaBH4 (325 mg, 8.55 mmol) was added slowly. The reaction was stirred at 0° C. for 2 h, quenched with water, and extracted with CHCl3 (×3). The combined organic layer was dried over Na2SO4 and concentrated. The residue was purified by column chromatography on silica gel (30→50% ethyl acetate in hexane) to yield a colorless syrup (308 mg) as a mixture containing tert-butyl [6-(hydroxymethyl)pyridin-2-yl]carbamate as the major component (˜4:1 ratio). To a solution of the above mixture in CH2Cl2 (10 ml) was added pyridine (144 μl, 1.79 mmol) and SOCl2 (120 μl, 1.65 mmol). The reaction was stirred at room temperature for 4 h, quenched with water and saturated Na2CO3, and extracted with CHCl3. The combined organic layer was dried over Na2SO4 and concentrated. The residue was purified by column chromatography on silica gel (10% ethyl acetate in hexane) to yield the title compound as a colorless syrup (208 mg, 50% over 2 steps).
Following General Procedure F, the title compound was prepared from 2,2′-dithiobis(5-chloroaniline) and 1-benzofuran-2-sulfonyl chloride.
1H NMR (600 MHz, CD3OD) δ 7.72 (d, J=7.92 Hz, 2H), 7.55 (dd, J=0.59, 8.51 Hz, 2H), 7.48 (s, 2H), 7.32-7.37 (m, 4H), 7.22 (d, J=2.05 Hz, 2H), 6.99-7.02 (m, 2H), 6.96-6.99 (m, 2H).
To a solution of N,N′-[dithiobis(5-chloro-2,1-phenylene)]bis(1-benzofuran-2-sulfonamide) (271 mg, 0.40 mmol) in CH2Cl2 (4 ml) and dioxane (4 ml) was added saturated aqueous NaHCO3 (4 ml), polymer-bound triphenylphosphine (˜3 mmol/g triphenylphosphine loading, 0.40 g, 1.20 mmol), tert-butyl [6-(chloromethyl)pyridin-2-yl]carbamate (195 mg, 0.80 mmol), and tetrabutylammonium iodide (30 mg, 0.08 mmol). The reaction was stirred at room temperature for 4 h and was diluted with EtOAc, filtered, and washed with brine, dried over Na2SO4, and concentrated. The residue was purified by column chromatography on silica gel (10→15% ethyl acetate in hexane) to yield the title compound as a yellow solid (260 mg, 59%).
1H NMR (600 MHz, CD3OD) δ 7.74 (d, J=8.22 Hz, 1H), 7.70 (d, J=7.63 Hz, 1H), 7.50-7.57 (m, 2H), 7.44-7.50 (m, 2H), 7.41 (s, 1H), 7.31-7.36 (m, 2H), 7.09 (d, J=8.22 Hz, 1H), 6.65 (d, J=7.34 Hz, 1H), 3.88 (s, 2H), 1.54 (s, 9H).
Following General Procedure E, the title compound (33 mg, 78%) was prepared from tert-butyl {6-[({2-[(1-benzofuran-2-ylsulfonyl)amino]-4-chlorophenyl}thio)methyl]pyridin-2-yl}carbamate.
1H NMR (600 MHz, CD3OD) δ 7.63 (d, J=7.92 Hz, 1H), 7.58 (d, J=2.35 Hz, 1H), 7.40-7.44 (m, 1H), 7.35-7.40 (m, 2H), 7.31-7.35 (m, 2H), 7.26 (ddd, J=0.88, 7.04, 7.92 Hz, 1H), 6.95 (dd, J=2.35, 8.22 Hz, 1H), 6.55 (d, J=8.51 Hz, 1H), 6.31 (d, J=7.04 Hz, 1H), 3.78 (s, 2H).
Following General Procedure C, the title compound (98 mg, 91%) was prepared from tert-butyl {6-[({2-[(1-benzofuran-2-ylsulfonyl)amino]-4-chlorophenyl}thio)methyl]pyridin-2-yl}carbamate.
1H NMR (600 MHz, CD3OD) δ 7.67 (d, J=8.22 Hz, 1H), 7.64 (d, J=7.04 Hz, 1H), 7.47 (d, J=2.05 Hz, 1H), 7.42-7.46 (m, 1H), 7.36-7.39 (m, 1H), 7.29-7.33 (m, 1H), 7.22-7.26 (m, 2H), 7.09 (d, J=8.22 Hz, 1H), 6.77 (dd, J=1.91, 8.36 Hz, 1H), 6.68 (d, J=7.34 Hz, 1H), 4.59 (d, J=12.62 Hz, 1H), 4.16 (d, J=12.62 Hz, 1H), 1.52 (s, 9H).
Following General Procedure E, the title compound (71 mg, 91%) was prepared from tert-butyl {6-[({2-[(1-benzofuran-2-ylsulfonyl)amino]-4-chlorophenyl}sulfinyl)methyl]pyridin-2-yl}carbamate.
1H NMR (300 MHz, CD3OD) δ 7.65 (d, J=7.91 Hz, 1H), 7.52-7.62 (m, 1H), 7.50 (d, J=1.47 Hz, 1H), 7.39-7.46 (m, 1H), 7.29-7.38 (m, 2H), 7.20-7.29 (m, 2H), 6.89 (dd, J=1.47, 8.50 Hz, 1H), 6.79 (d, J=8.79 Hz, 1H), 6.44 (d, J=7.03 Hz, 1H), 4.60 (d, J=13.48 Hz, 1H), 4.25 (d, J=13.19 Hz, 1H).
Following General Procedure D, the title compound (60 mg, 56%) was prepared from tert-butyl {6-[({2-[(1-benzofuran-2-ylsulfonyl)amino]-4-chlorophenyl}thio)methyl]pyridin-2-yl}carbamate.
1H NMR (300 MHz, CD3OD) δ 7.79 (d, J=1.76 Hz, 1H), 7.65 (d, J=7.62 Hz, 1H), 7.55 (d, J=8.50 Hz, 1H), 7.44 (s, 1H), 7.18-7.40 (m, 5H), 6.72 (dd, J=1.76, 8.50 Hz, 1H), 6.60 (d, J=7.33 Hz, 1H), 4.97 (s, 2H), 1.51 (s, 9H).
Following General Procedure E, the title compound (47 mg, 94%) was prepared from tert-butyl {6-[({2-[(1-benzofuran-2-ylsulfonyl)amino]-4-chlorophenyl}sulfonyl)methyl]pyridin-2-yl}carbamate.
1H NMR (300 MHz, CD3OD) δ 7.73 (d, J=2.05 Hz, 1H), 7.66 (d, J=7.62 Hz, 1H), 7.52 (d, J=8.79 Hz, 1H), 7.20-7.44 (m, 4H), 7.14 (t, J=7.77 Hz, 1H), 6.73 (dd, J=1.76, 8.50 Hz, 1H), 6.48 (d, J=8.20 Hz, 1H), 6.28 (d, J=7.33 Hz, 1H), 4.91 (s, 2H).
Following General Procedure G, the title compound (206 mg, 36%) was prepared from N,N′-[dithiobis(5-chloro-2,1-phenylene)]bis(1-benzofuran-2-sulfonamide) and tert-butyl 3-(bromomethyl)-1H-pyrazole-1-carboxylate.
1H NMR (600 MHz, CDCl3) δ 8.30 (br. s., 1H), 7.93 (d, J=2.64 Hz, 1H), 7.62-7.67 (m, 2H), 7.47-7.52 (m, 1H), 7.42-7.45 (m, 1H), 7.41 (s, 1H), 7.34 (d, J=8.22 Hz, 1H), 7.28-7.32 (m, 1H), 7.00 (dd, J=2.20, 8.36 Hz, 1H), 6.03 (d, J=2.64 Hz, 1H), 3.88 (s, 2H), 1.64 (s, 9H).
Following General Procedure E, the title compound (15 mg, 66%) was prepared from tert-butyl 3-[({2-[(1-benzofuran-2-ylsulfonyl)amino]-4-chlorophenyl}thio)methyl]-1H-pyrazole-1-carboxylate.
1H NMR (600 MHz, CD3OD) δ 7.70 (d, J=7.92 Hz, 1H), 7.51-7.55 (m, 1H), 7.45-7.50 (m, 2H), 7.37-7.44 (m, 2H), 7.34 (t, J=7.19 Hz, 1H), 7.25-7.31 (m, 1H), 7.11 (dd, J=1.76, 8.22 Hz, 1H), 5.88 (br. s., 1H), 3.89 (s, 2H).
A mixture of 2-amino-4-chlorobenzenethiol (327 mg, 2.05 mmol), N,N-dimethylacrylamide (203 mg, 2.05 mmol) and HOAc (0.5 ml) in CH2Cl2 (5 ml) was stirred at room temperature for 3 days. The reaction was quenched with NaHCO3 (aq.) and then extracted with CH2Cl2 (2×10 ml). The organic layer was washed with water and brine and concentrated in vacuo. The crude product was purified by chromatography on silica gel (50% ethyl acetate in hexane) to yield the title compound (284 mg, 54%).
1H NMR (300 MHz, CD3OD) δ 7.26 (d, J=8.21 Hz, 1H), 6.76 (d, J=2.05 Hz, 1H), 6.56 (dd, J=2.34, 8.20 Hz, 1H), 2.85-3.02 (m, 8H), 2.57 (t, J=7.03 Hz, 2H).
Following General Procedure B and C, the title compound (280 mg) was prepared from 3-[(2-amino-4-chlorophenyl)thio]-N,N-dimethylpropanamide (284 mg, 1.11 mmo).
1H NMR (600 MHz, CD3OD) δ 8.16 (d, J=1.76 Hz, 1H), 8.00 (dd, J=2.05, 8.22 Hz, 1H), 7.75 (d, J=8.51 Hz, 1H), 7.57 (d, J=8.51 Hz, 1H), 7.32 (s, 1H), 7.21 (d, J=7.92 Hz, 1H), 3.26 (br. s., 1H), 3.18 (br. s., 1H), 3.02 (s, 3H), 2.95 (s, 3H), 2.83-2.91 (m, 1H), 2.62-2.76 (m, 1H).
Following General Procedure C, tert-Butyl (4-(((2-(benzofuran-2-sulfonamido)-4-chlorophenyl)thio)methyl)thiazol-2-yl)carbamate (138 mg, 0.25 mmol) was oxidized to the title compound (97 mg, 68%).
1H NMR (600 MHz, acetone-d6) δ 10.43 (br. s., 1H), 7.75-7.84 (m, 2H), 7.66 (d, J=2.05 Hz, 1H), 7.62 (dd, J=0.88, 8.51 Hz, 1H), 7.50 (ddd, J=1.32, 7.26, 8.44 Hz, 1H), 7.32-7.41 (m, 1H), 7.11-7.24 (m, 2H), 6.74 (s, 1H), 4.47 (d, J=12.91 Hz, 1H), 4.37 (d, J=12.91 Hz, 1H), 1.50 (s, 9H).
Following General Procedure E, tert-butyl {4-[({2-[(1-benzofuran-2-ylsulfonyl)amino]-4-chlorophenyl}sulfinyl)methyl]-1,3-thiazol-2-yl}carbamate (87 mg, 0.153 mmol) was de-Boc to give the title compound (58 mg, 82%).
1H NMR (600 MHz, acetone-d6) δ 10.43 (br. s., 1H), 7.75-7.84 (m, 2H), 7.66 (d, J=2.05 Hz, 1H), 7.62 (dd, J=0.88, 8.51 Hz, 1H), 7.50 (ddd, J=1.32, 7.26, 8.44 Hz, 1H), 7.32-7.41 (m, 1H), 7.11-7.24 (m, 2H), 6.74 (s, 1H), 4.47 (d, J=12.91 Hz, 1H), 4.37 (d, J=12.91 Hz, 1H), 1.50 (s, 9H).
Following General Procedure D, the title compound (112 mg, 90%) was prepared from tert-Butyl (4-(((2-(benzofuran-2-sulfonamido)-4-chlorophenyl)thio)methyl)thiazol-2-yl)carbamate (117 mg, 0.212 mmol).
1H NMR (600 MHz, acetone-d6) δ 7.80 (d, J=7.92 Hz, 2H), 7.78 (d, J=1.76 Hz, 1H), 7.67 (d, J=8.51 Hz, 1H), 7.59 (d, J=7.92 Hz, 1H), 7.50 (t, J=7.63 Hz, 1H), 7.37 (t, J=7.48 Hz, 1H), 6.99 (s., 1H), 4.70 (s., 2H), 1.53 (s, 9H)
1H NMR (600 MHz, acetone-d6) δ 7.80 (d, J=7.92 Hz, 2H), 7.67 (d, J=8.51 Hz, 1H), 7.60 (br. s., 1H), 7.50 (t, J=7.63 Hz, 1H), 7.33-7.41 (m, 1H), 6.99 (br. s., 1H), 4.70 (br. s., 2H), 1.53 (s, 9H).
Following General Procedure E, the title compound (54 mg, 86%) was prepared from tert-butyl {4-[({2-[(1-benzofuran-2-ylsulfonyl)amino]-4-chlorophenyl}sulfinyl)methyl]-1,3-thiazol-2-yl}carbamate (77 mg, 0.153 mmol).
1H NMR (600 MHz, acetone-d6) δ 7.74-7.85 (m, 2H), 7.68 (d, J=2.35 Hz, 1H), 7.64 (dd, J=0.88, 8.51 Hz, 1H), 7.53 (ddd, J=1.32, 7.19, 8.51 Hz, 1H), 7.39 (ddd, J=0.88, 7.26, 8.00 Hz, 1H), 7.16-7.24 (m, 2H), 6.74 (s, 1H), 4.32-4.46 (m, 2H), 1.47-1.55 (m, 9H).
(5-Nitro-1H-pyrazol-3-yl)methanol (524 mg, 3.66 mmol) was first treated with SOCl2 (3 ml) in CH2Cl2 (5 ml) at 35° C. for 2 hrs. The solvent was removed to get a crude 3-(chloromethyl)-5-nitro-1H-pyrazole. Then following General Procedure A, the title compound (515 mg, 49%) was prepared from 2-amino-4-chlorobenzenethiol (161 mg, 1.01 mmol), crude 3-(chloromethyl)-5-nitro-1H-pyrazole, K2CO3 (468 mg, 3.39 mmol) in DMF (3 ml).
1H NMR (600 MHz, CD3OD) δ 7.05 (d, J=8.22 Hz, 1H), 6.77 (d, J=2.35 Hz, 1H), 6.60 (s, 1H), 6.49 (dd, J=2.05, 8.22 Hz, 1H), 3.95 (s, 2H).
Following General Procedure B, the title compound (580 mg, 71%) was prepared from 5-chloro-2-(((5-nitro-1H-pyrazol-3-yl)methyl)thio)aniline (503 mg, 1.77 mmol) and benzofuran-2-sulfonyl chloride (384 mg, 1.77 mmol) in pyridine (5 ml).
1H NMR (600 MHz, CD3OD) δ 7.70-7.73 (m, 1H), 7.53-7.56 (m, 1H), 7.49 (d, J=1.47 Hz, 1H), 7.47-7.49 (m, 1H), 7.47 (d, J=1.17 Hz, 1H), 7.45 (d, J=2.35 Hz, 1H), 7.44 (d, J=0.88 Hz, 1H), 7.35 (ddd, J=0.88, 7.26, 8.00 Hz, 1H), 7.15 (dd, J=2.35, 8.22 Hz, 1H), 6.42 (s, 1H), 3.97 (s, 2H).
Following General Procedure C, the title compound (155 mg, 61%) was prepared from N-(5-chloro-2-{[(5-nitro-1H-pyrazol-3-yl)methyl]thio}phenyl)-1-benzofuran-2-sulfonamide (245 mg, 0.528 mmol).
1H NMR (600 MHz, CD3OD) δ 7.67 (dt, J=0.77, 7.56 Hz, 1H), 7.42-7.45 (m, 2H), 7.35 (td, J=1.32, 7.85 Hz, 1H), 7.24-7.29 (m, 2H), 7.09 (d, J=8.22 Hz, 1H), 6.85 (d, J=8.22 Hz, 1H), 6.33 (s, 1H), 4.61 (d, J=14.09 Hz, 1H), 4.48 (d, J=14.09 Hz, 1H).
N-(2-{[(5-amino-1H-pyrazol-3-yl)methyl]thio}-5-chlorophenyl)-1-benzofuran-2-sulfonamide
N-(5-chloro-2-{[(5-nitro-1H-pyrazol-3-yl)methyl]thio}phenyl)-1-benzofuran-2-sulfonamide (77 mg, 0.166 mmol) was reduced to the title compound under H2 balloon in the present of Pd/C (10% wt, 18 mg) in MeOH (3 ml).
1H NMR (600 MHz, CD3OD) δ 7.70 (d, J=7.92 Hz, 1H), 7.52-7.56 (m, 2H), 7.48 (ddd, J=1.17, 7.12, 8.44 Hz, 1H), 7.44 (s, 1H), 7.40 (s, 1H), 7.34 (t, J=7.48 Hz, 1H), 7.28 (d, J=8.51 Hz, 1H), 7.11 (dd, J=2.20, 8.36 Hz, 1H), 3.74 (s, 2H).
Following the General Procedure I, the title compound (39 mg, 91%) was reduced from N-(5-chloro-2-{[(5-nitro-1H-pyrazol-3-yl)methyl]sulfinyl}phenyl)-1-benzofuran-2-sulfonamide (46 mg, 0.096 mmol).
1H NMR (600 MHz, CD3OD) δ 7.91-7.99 (m, 1H), 7.67-7.72 (m, 1H), 7.56-7.62 (m, 1H), 7.50-7.55 (m, 1H), 7.41-7.48 (m, 2H), 7.29-7.40 (m, 2H), 7.13 (dd, J=1.91, 8.36 Hz, 1H), 4.55 (d, J=13.79 Hz, 1H), 4.05 (d, J=13.79 Hz, 1H)
Following General Procedure D and H, the title compound (27 mg) was prepared from N-(5-chloro-2-{[(5-nitro-1H-pyrazol-3-yl)methyl]thio}phenyl)-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, CD3OD) δ 7.69-7.74 (m, 2H), 7.62-7.58 (m, 3H), 7.51 (dd, J=0.59, 8.51 Hz, 1H), 7.44 (ddd, J=1.17, 7.12, 8.44 Hz, 1H), 7.26-7.35 (m, 1H), 7.09 (dd, J=1.91, 8.66 Hz, 1H), 4.59 (s, 2H).
To a suspension of NaH (95%, 231 mg, 9.18 mmol) in THF (20 ml) was added 4-imidazole carboxaldehyde (588 mg, 6.12 mmol) under ice cooling. The mixture was refluxed for 2 hours under nitrogen atmosphere. The mixture was cooled to room temperature and 1-iodopropane (5 ml) was added to the mixture and then refluxed for another 2 hours. The mixture was cooled down to rt and quenched with water. The solution was extracted with EtOAc (2×50 ml), washed with brine, dried over Na2SO4, concentrated in vacuo. The crude product was purified by column chromatography on silica gel (0-10% MeOH in CH2Cl2) to give the title compound (487 mg, 58%).
1H NMR (600 MHz, CD3OD) δ 9.73 (s, 1H), 7.97 (s, 1H), 7.84 (s, 1H), 4.07 (t, J=7.04 Hz, 2H), 1.73-1.92 (m, 2H), 0.93 (t, J=7.34 Hz, 3H).
To a solution of LAH (2.0 M in THF, 1.9 ml, 3.882 mmol) in THF (10 ml) was added dropwise a solution of 1-propyl-1H-imidazole-4-carbaldehyde (487 mg, 3.529 mmol) in THF (4 ml) at 0° C. After stirred at 0° C. for 5 min, water (0.2 ml), 15% NaOH (0.2 ml) was added dropwise to the reaction mixture under 0° C. The mixture was further stirred at room temperature for 2 hours. MgSO4 was added to the mixture and the solid was filtered away and the filtrate was concentrated in vacuo to get a yellow oil and used without further purification.
1H NMR (600 MHz, CD3Cl3) δ 7.42 (s, 1H), 6.86 (s, 1H), 4.59 (s, 2H), 3.87 (t, J=7.04 Hz, 2H), 1.73-1.82 (m, 2H), 0.93 (t, J=7.34 Hz, 3H).
(1-propyl-1H-imidazol-4-yl)methanol (535 mg, 3.11 mmol) was first treated with SOCl2 (3 ml) in CH2Cl2 (5 ml) at 35° C. for 2 hrs. The solvent was removed to get a crude 4-(chloromethyl)-1-propyl-1H-imidazole. Then following General Procedure A, the title compound (587 mg, 67%) was prepared from 2-amino-4-chlorobenzenethiol (744 mg, 4.66 mmol), 4-(chloromethyl)-1-propyl-1H-imidazole, K2CO3 (2.1 g, 15.54 mmol) in DMF (10 ml).
1H NMR (600 MHz, CDCL3) δ 7.38 (s, 1H), 7.17 (d, J=8.22 Hz, 1H), 6.67 (d, J=2.05 Hz, 1H), 6.57 (dd, J=2.20, 8.07 Hz, 1H), 6.51 (s, 1H), 3.85 (s, 2H), 3.79 (t, J=7.04 Hz, 2H), 1.67-1.76 (m, 2H), 0.88 (t, J=7.34 Hz, 3H).
Following General Procedure B, the title compound (463 mg, 48%) was prepared from 5-chloro-2-(((1-propyl-1H-imidazol-4-yl)methyl)thio)aniline (587 mg, 2.082 mmol) and benzofuran-2-sulfonyl chloride (451 mg, 2.082 mmol) in pyridine (10 ml).
1H NMR (600 MHz, CD3OD) δ 7.71 (dt, J=1.03, 7.92 Hz, 1H), 7.57 (d, J=1.17 Hz, 1H), 7.52-7.55 (m, 1H), 7.44-7.51 (m, 2H), 7.42 (d, J=0.88 Hz, 1H), 7.34 (td, J=1.03, 7.56 Hz, 1H), 7.27 (d, J=8.22 Hz, 1H), 7.07 (dd, J=2.35, 8.51 Hz, 1H), 6.44-6.51 (m, 1H), 3.75-3.81 (m, 4H), 1.63 (dquin, J=7.19, 7.34 Hz, 2H), 0.74-0.82 (m, 3H).
Following General Procedure C, the title compound (148 mg, 75%) was prepared from N-(5-chloro-2-{[(1-propyl-1H-imidazol-4-yl)methyl]thio}phenyl)-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, CD3OD) δ 8.46 (s, 1H), 7.70 (dd, J=1.47, 8.22 Hz, 1H), 7.49 (dd, J=0.88, 8.51 Hz, 1H), 7.38-7.43 (m, 2H), 7.35 (d, J=0.88 Hz, 1H), 7.30 (ddd, J=1.03, 7.19, 7.92 Hz, 1H), 7.12 (d, J=8.51 Hz, 1H), 6.91 (dd, J=1.91, 8.36 Hz, 1H), 6.80 (s, 1H), 4.57 (d, J=14.38 Hz, 1H), 4.43 (d, J=14.09 Hz, 1H), 3.84-3.99 (m, 2H), 1.57-1.71 (m, 2H), 0.81 (t, J=7.34 Hz, 3H).
Following General Procedure D, the title compound (115 mg, 60%) was prepared from N-(5-chloro-2-{[(1-propyl-1H-imidazol-4-yl)methyl]thio}phenyl)-1-benzofuran-2-sulfonamide.
1H NMR (300 MHz, CD3OD) δ 7.82 (s, 1H), 7.71 (dd, J=1.32, 7.77 Hz, 1H), 7.67 (d, J=2.05 Hz, 1H), 7.55 (d, J=8.50 Hz, 1H), 7.44-7.50 (m, 2H), 7.41 (td, J=1.32, 7.69 Hz, 1H), 7.25-7.35 (m, 1H), 6.85 (dd, J=2.05, 8.79 Hz, 1H), 6.76 (s, 1H), 4.57 (s, 2H), 3.74 (t, J=7.03 Hz, 2H), 1.54 (quind, J=6.89, 7.07 Hz, 2H), 0.69 (t, J=7.47 Hz, 3H).
A solution of (2-aminopyridin-4-yl)methanol (547 mg, 4.408 mmol), di-tert-butyl dicarbonate (1.25 g, 5.730 mmol), in t-BuOH (20 ml) was stirred at room temperature overnight. The solvent was removed and added ethyl acetate, filtered away the solid and the filtrate was concentrated in vacuo. The residue was purified by column chromatography (10% MeOH in CH2Cl2) to give the title compound as a white solid (703 mg, 71%).
1H NMR (600 MHz, CDCl3) δ 8.18 (d, J=5.28 Hz, 1H), 8.00 (s, 1H), 6.92-7.10 (m, 1H), 4.75 (s, 2H), 1.32-1.66 (m, 9H).
tert-butyl (4-(hydroxymethyl)pyridin-2-yl)carbamate (600 mg, 2.679 mmol) was first treated with SOCl2 (3 ml) in CH2Cl2 (5 ml) at rt for 2 hrs. The solvent was removed to get a crude tert-butyl (4-(chloromethyl)pyridin-2-yl)carbamate. Then following General Procedure A, the title compound (667 mg, 68%) was prepared from 2-amino-4-chlorobenzenethiol (641 mg, 4.019 mmol), K2CO3 (1.8 g, 13.39 mmol) in DMF (20 ml).
1H NMR (600 MHz, CDCl3) δ 9.83 (br. s., 1H), 8.20 (d, J=4.70 Hz, 1H), 7.85 (s, 1H), 6.92-7.18 (m, 1H), 6.60-6.75 (m, 2H), 6.55 (dd, J=2.05, 8.22 Hz, 1H), 4.42 (br. s., 2H), 3.78 (s, 2H), 1.54 (s, 9H).
Following General Procedure B, the title compound (555 mg, 56%) was prepared from tert-butyl (4-(((2-amino-4-chlorophenyl)thio)methyl)pyridin-2-yl)carbamate (667 mg, 1.827 mmol) and benzofuran-2-sulfonyl chloride (396 mg, 1.827 mmol) in pyridine (10 ml).
1H NMR (600 MHz, CD3OD) δ 7.99 (d, J=4.99 Hz, 1H), 7.64-7.73 (m, 2H), 7.59 (d, J=1.17 Hz, 1H), 7.50-7.55 (m, 1H), 7.42-7.50 (m, 2H), 7.30-7.39 (m, 1H), 7.15 (dd, J=1.03, 8.36 Hz, 1H), 6.96-7.05 (m, 1H), 6.56 (d, J=5.28 Hz, 1H), 3.77 (s, 2H), 1.48-1.61 (m, 9H).
Following General Procedure E, the title compound (76 mg, 100%) was prepared from tert-butyl {4-[({2-[(1-benzofuran-2-ylsulfonyl)amino]-4-chlorophenyl}thio)methyl]pyridin-2-yl}carbamate (96 mg, 0.176 mmol).
1H NMR (600 MHz, CD3OD) δ 7.72-7.76 (m, 2H), 7.65 (d, J=6.46 Hz, 2H), 7.58 (dd, J=0.73, 8.36 Hz, 1H), 7.46-7.53 (m, 2H), 7.42 (d, J=2.05 Hz, 1H), 7.37 (td, J=1.03, 7.56 Hz, 1H), 7.31 (d, J=8.51 Hz, 1H), 7.16 (dd, J=2.35, 8.51 Hz, 1H), 6.64 (dd, J=1.61, 6.60 Hz, 1H), 6.50 (s, 1H), 3.90 (s, 2H).
Following General Procedure D, the title compound (49 mg) was prepared from tert-butyl {4-[({2-[(1-benzofuran-2-ylsulfonyl)amino]-4-chlorophenyl}thio)methyl]pyridin-2-yl}carbamate.
1H NMR (600 MHz, CD3OD) δ 7.93 (d, J=6.75 Hz, 1H), 7.78 (s, 1H), 7.73 (d, J=2.05 Hz, 1H), 7.63 (d, J=7.63 Hz, 1H), 7.41 (d, J=8.80 Hz, 1H), 7.33 (s, 1H), 7.29 (d, J=3.81 Hz, 1H), 7.23 (dt, J=3.96, 7.92 Hz, 2H), 6.85 (dd, J=2.20, 6.60 Hz, 1H), 6.68 (d, J=7.92 Hz, 1H), 4.56 (br. s., 2H), 1.47 (s, 9H).
Following General Procedure D, the title compound (82 mg) was prepared from tert-butyl {4-[({2-[(1-benzofuran-2-ylsulfonyl)amino]-4-chlorophenyl}thio)methyl]pyridin-2-yl}carbamate.
1H NMR (600 MHz, CD3OD) δ 8.22 (d, J=6.46 Hz, 1H), 7.96 (s, 1H), 7.76 (d, J=16.73 Hz, 1H), 7.60-7.68 (m, 1H), 7.43 (d, J=8.51 Hz, 1H), 7.37 (s, 1H), 7.31 (br. s., 1H), 7.21-7.27 (m, 1H), 7.09 (d, J=6.46 Hz, 1H), 6.85 (d, J=6.75 Hz, 1H), 6.72 (d, J=7.63 Hz, 1H), 4.60 (br. s., 2H), 1.55 (s, 9H).
Following General Procedure E, the title compound (32 mg, 100%) was prepared from tert-butyl {4-[({2-[(1-benzofuran-2-ylsulfonyl)amino]-4-chlorophenyl}sulfonyl)methyl]pyridin-2-yl}carbamate.
1H NMR (600 MHz, acetone-d6) δ 7.74-7.85 (m, 3H), 7.61-7.70 (m, 2H), 7.52-7.58 (m, 1H), 7.45 (td, J=1.17, 7.92 Hz, 1H), 7.28-7.38 (m, 1H), 7.09 (dd, J=2.05, 8.51 Hz, 1H), 6.88 (s, 1H), 6.57-6.66 (m, 1H), 4.89 (s, 2H).
Following General Procedure E, the title compound (43 mg, 67%) was prepared from tert-butyl {4-[({2-[(1-benzofuran-2-ylsulfonyl)amino]-4-chlorophenyl}sulfonyl)methyl]-1-oxidopyridin-2-yl}carbamate (77 mg, 0.130 mmol).
1H NMR (600 MHz, acetone-d6) δ 8.07 (d, J=4.70 Hz, 3H), 7.76-7.81 (m, 2H), 7.74 (s, 1H), 7.64 (d, J=8.51 Hz, 1H), 7.58 (d, J=8.51 Hz, 1H), 7.46-7.49 (m, 1H), 7.32-7.37 (m, 1H), 7.15 (dd, J=1.32, 8.36 Hz, 1H), 6.94 (br. s., 1H), 6.52 (d, J=4.99 Hz, 1H), 4.76 (s, 2H).
Following General Procedure C and General Procedure E, the title compound (103 mg) was prepared from tert-butyl {-4-[({2-[(1-benzofuran-2-ylsulfonyl)amino]-4-chlorophenyl}thio)methyl]pyridin-2-yl}carbamate.
1H NMR (600 MHz, acetone-d6) δ 8.29 (br. s., 1H), 7.74 (dd, J=7.04, 18.19 Hz, 2H), 7.40-7.61 (m, 4H), 7.25-7.37 (m, 2H), 7.05 (d, J=7.04 Hz, 1H), 6.84 (s, 1H), 6.49 (d, J=6.16 Hz, 1H), 4.50 (d, J=12.62 Hz, 2H), 4.40 (d, J=12.62 Hz, 1H).
The solution of 2-amino-4-chlorobenzenethiol (824 mg, 5.126 mmol), N,N-dimethylacrylamide (512 mg, 5.162 mmol), and HOAc (1 ml) in CH2Cl2 (10 ml) was stirred at room temperature for 4 days. The solvent was removed and the residue was loaded on silica column and purified to yield a white solid (1.08 g, 83%).
1H NMR (600 MHz, CD3OD) δ 7.26 (d, J=8.22 Hz, 1H), 6.76 (d, J=2.05 Hz, 1H), 6.56 (dd, J=2.05, 8.22 Hz, 1H), 2.93-2.97 (m, 5H), 2.90 (s, 3H), 2.58 (t, J=7.04 Hz, 2H).
Following General Procedure B and D, the title compound (73 mg) was prepared from 3-((2-amino-4-chlorophenyl)thio)-N,N-dimethylpropanamide (104 mg, 0.405 mmol) and 4-chloro-3-(trifluoromethyl)benzene-1-sulfonyl chloride (113 mg, 0.405 mmol).
1H NMR (600 MHz, CD3OD) δ 8.31 (d, J=1.47 Hz, 1H), 8.12 (dd, J=1.76, 8.51 Hz, 1H), 7.70 (dd, J=8.51, 18.49 Hz, 2H), 7.58 (s, 1H), 6.90 (s., 1H), 3.73 (br. s., 2H), 3.01 (s, 3H), 2.95 (s, 3H), 2.78 (t, J=6.75 Hz, 2H).
Following General Procedure B, the title compound (364 mg, 72%) was prepared from 3-((2-amino-4-chlorophenyl)thio)-N,N-dimethylpropanamide (300 mg, 1.167 mmol) and 2,4-difluorobenzene-1-sulfonyl chloride (248 mg, 1.167 mmol) in pyridine (5 ml).
1H NMR (600 MHz, CD3OD) δ 7.86 (td, J=6.02, 8.44 Hz, 1H), 7.38-7.45 (m, 2H), 7.13-7.21 (m, 2H), 7.09 (tdd, J=0.88, 2.49, 8.44 Hz, 1H), 2.95-3.01 (m, 5H), 2.93 (s, 3H), 2.56 (t, J=7.04 Hz, 2H).
Following General Procedure C, the title compound (130 mg, 88%) was prepared from 3-[(4-chloro-2-{[(2,4-difluorophenyl)sulfonyl]amino}phenyl)thio]-N,N-dimethylpropanamide.
1H NMR (600 MHz, CD3OD) δ 7.90 (td, J=5.87, 8.51 Hz, 1H), 7.69 (d, J=8.51 Hz, 1H), 7.43 (dd, J=2.05, 8.51 Hz, 1H), 7.31 (d, J=2.05 Hz, 1H), 7.20-7.27 (m, 1H), 7.11-7.17 (m, 1H), 3.24-3.29 (m, 1H), 3.12-3.20 (m, 1H), 3.05 (s, 3H), 2.93 (s, 3H), 2.85-2.92 (m, J=4.40 Hz, 1H), 2.72-2.80 (m, J=6.46, 6.46, 17.02 Hz, 1H).
Following General Procedure D, the title compound (70 mg, 71%) was prepared from 3-[(4-chloro-2-{[(2,4-difluorophenyl)sulfonyl]amino}phenyl)thio]-N,N-dimethylpropanamide.
1H NMR (600 MHz, CD3OD) δ 8.01-8.12 (m, 1H), 7.76 (d, J=8.51 Hz, 2H), 7.49-7.60 (m, 2H), 6.95-7.24 (m, 3H), 3.72 (br. s., 2H), 3.01 (s, 3H), 2.90 (s, 3H), 2.78 (t, J=7.04 Hz, 2H).
Following General Procedure B, the title compound (476 mg, 75%) was prepared from 3-((2-amino-4-chlorophenyl)thio)-N,N-dimethylpropanamide (364 mg, 1.42 mmol) and 4-chloro-2-fluorobenzene-1-sulfonyl chloride (325 mg, 1.42 mmol) in pyridine (5 ml).
1H NMR (600 MHz, acetone-d6) δ 9.57 (br. s., 1H), 7.86 (t, J=8.07 Hz, 1H), 7.50-7.56 (m, 2H), 7.45 (dd, J=1.91, 9.83 Hz, 1H), 7.40 (dd, J=1.91, 8.36 Hz, 1H), 7.17 (dd, J=2.35, 8.22 Hz, 1H), 2.94-3.01 (m, 5H), 2.91 (s, 3H), 2.54 (t, J=6.46 Hz, 3H).
Following General Procedure C, the title compound (90 mg, 55%) was prepared from 3-[(4-chloro-2-{[(4-chloro-2-fluorophenyl)sulfonyl]amino}phenyl)thio]-N,N-dimethylpropanamide.
1H NMR (600 MHz, CD3OD) δ 7.78-7.90 (m, 1H), 7.48 (d, J=8.51 Hz, 1H), 7.27-7.34 (m, 2H), 7.26 (d, J=2.05 Hz, 1H), 7.03 (d, J=7.92 Hz, 1H), 3.43 (ddd, J=6.31, 9.02, 13.43 Hz, 1H), 3.16 (ddd, J=5.58, 9.10, 13.50 Hz, 1H), 2.99 (s, 3H), 2.92 (s, 3H), 2.79-2.88 (m, J=6.46, 9.17, 16.07 Hz, 1H), 2.52-2.64 (m, 1H).
Following General Procedure D, the title compound (81 mg, 48%) was prepared from 3-[(4-chloro-2-{[(4-chloro-2-fluorophenyl)sulfonyl]amino}phenyl)thio]-N,N-dimethylpropanamide.
1H NMR (600 MHz, CD3OD) δ 7.89-7.98 (m, 1H), 7.69 (d, J=8.51 Hz, 1H), 7.46 (d, J=2.05 Hz, 1H), 7.20-7.30 (m, 2H), 6.76 (d, J=7.63 Hz, 1H), 3.86 (t, J=7.19 Hz, 2H), 2.97 (s, 3H), 2.93 (s, 3H), 2.70 (t, J=7.34 Hz, 2H).
(5-amino-4H-1,2,4-triazol-3-yl)methanol (467 mg, 4.093 mmol), di-tert-butyl dicarbonate (1.16 g, 5.32 mmol), in t-BuOH (20 ml) was stirred at room temperature overnight. The solvent was removed and added ethyl acetate, filtered away the solid and the filtrate was concentrated in vacuo. The residue was purified by column chromatography (10% MeOH in CH2Cl2) to give the title compound as a yellow oil (190 mg, 22%).
1H NMR (300 MHz, CD3OD) δ 4.44 (s, 2H), 1.63 (s, 9H).
A solution of tert-butyl (5-(hydroxymethyl)-4H-1,2,4-triazol-3-yl)carbamate (190 mg, 0.888 mmol), 2-amino-4-chlorobenzenethiol (213 mg, 1.332 mmol), PPh3 (466 mg, 1.776 mmol) and di-tert-butylazodicarboxylate (409 mg, 1.776 mmol) in CH2Cl2 (10 ml) was stirred at room temperature for 2 days. The solvent was then removed and the crude residues was loaded on silica gel column to get the title compound.
1H NMR (600 MHz, CD3OD) δ 7.18 (s, 1H), 6.73 (d, J=2.35 Hz, 1H), 6.49 (dd, J=2.35, 8.22 Hz, 2H), 3.68 (s, 2H), 1.60 (s, 9H).
Following General Procedure B, the title compound was prepared from tert-butyl (5-(((2-amino-4-chlorophenyl)thio)methyl)-4H-1,2,4-triazol-3-yl)carbamate (330 mg, 0.925 mmol) and benzofuran-2-sulfonyl chloride (200 mg, 0.925 mmol) in pyridine (2 ml).
1H NMR (600 MHz, CD3OD) δ 7.69 (dd, J=0.88, 7.92 Hz, 1H), 7.45-7.57 (m, 4H), 7.40 (s, 1H), 7.29-7.35 (m, 1H), 7.16 (dd, J=2.35, 8.22 Hz, 1H), 3.70 (s, 2H), 1.61 (s, 9H).
Following General Procedure E, the title compound (13 mg) was prepared from tert-butyl (5-(((2-(benzofuran-2-sulfonamido)-4-chlorophenyl)thio)methyl)-4H-1,2,4-triazol-3-yl)carbamate.
1H NMR (600 MHz, CD3OD) δ 7.71 (d, J=7.92 Hz, 1H), 7.55 (d, J=8.51 Hz, 1H), 7.39-7.51 (m, 5H), 7.31-7.37 (m, 1H), 7.16 (d, J=7.04 Hz, 1H), 3.82 (s, 2H).
Following General Procedure C and E, the title compound (15 mg) was prepared from tert-butyl (5-(((2-(benzofuran-2-sulfonamido)-4-chlorophenyl)thio)methyl)-4H-1,2,4-triazol-3-yl)carbamate.
1H NMR (600 MHz, CD3OD) δ 7.75 (dd, J=1.17, 7.92 Hz, 1H), 7.57-7.64 (m, 2H), 7.51-7.55 (m, 1H), 7.50 (d, J=0.88 Hz, 1H), 7.44 (dd, J=1.91, 8.36 Hz, 1H), 7.35-7.41 (m, 1H), 7.20 (d, J=2.05 Hz, 1H), 4.45 (d, J=14.09 Hz, 1H), 4.24 (d, J=14.09 Hz, 1H).
2-(Pyridin-2-yl)ethanol (1 g, 8.12 mmol) was first treated with SOCl2 (3 ml) in CH2Cl2 (10 ml) at rt for 3 hrs. The solvent was removed to get a crude 2-(2-chloroethyl)pyridine. Then following General Procedure A, the title compound (1.69 g, 79%) was prepared from 2-amino-4-chlorobenzenethiol (1.6 g, 9.74 mmol), K2CO3 (3.36 g, 24.36 mmol) in DMF (20 ml).
1H NMR (600 MHz, CD3OD) δ 8.39-8.42 (m, 1H), 7.73 (td, J=1.76, 7.63 Hz, 1H), 7.28 (d, J=7.63 Hz, 1H), 7.23 (d, J=8.22 Hz, 2H), 6.75 (d, J=2.35 Hz, 1H), 6.55 (dd, J=2.35, 8.22 Hz, 1H), 3.06-3.10 (m, 2H), 2.96-3.01 (m, 2H).
N-{5-chloro-2-[(2-pyridin-2-ylethyl)thio]phenyl}-1-benzofuran-2-sulfonamide
Following General Procedure B, the title compound was prepared from 5-chloro-2-((2-(pyridin-2-yl)ethyl)thio)aniline (439 mg, 1.663 mmol) and benzofuran-2-sulfonyl chloride (2×359 mg, 2×1.663 mmol) in pyridine (5 ml).
1H NMR (600 MHz, CD3OD) δ 8.54-8.62 (m, 1H), 7.85 (s, 1H), 7.71-7.78 (m, 1H), 7.67 (dt, J=1.03, 7.92 Hz, 1H), 7.56 (d, J=2.35 Hz, 1H), 7.39-7.48 (m, 2H), 7.36 (s, 1H), 7.27-7.32 (m, 2H), 7.15-7.22 (m, 2H), 2.98 (t, J=7.04 Hz, 2H), 2.74 (t, J=6.90 Hz, 2H).
Following General Procedure C, the title compound (45 mg, 79%) was prepared from N-{5-chloro-2-[(2-pyridin-2-ylethyl)thio]phenyl}-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, CD3OD) δ 8.52-8.60 (m, 1H), 7.81 (td, J=1.76, 7.63 Hz, 1H), 7.64-7.71 (m, 2H), 7.26-7.47 (m, 8H), 3.40-3.50 (m, 1H), 3.29-3.37 (m, 1H), 3.16-3.26 (m, OH), 2.83-2.95 (m, J=7.48, 7.48, 14.97 Hz, 1H).
Following General Procedure D, the title compound (20 mg) was prepared from N-{5-chloro-2-[(2-pyridin-2-ylethyl)thio]phenyl}-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, CD3OD) δ 8.30 (ddd, J=1.47, 1.61, 4.55 Hz, 1H), 7.71-7.76 (m, 2H), 7.61-7.68 (m, 2H), 7.52 (d, J=0.88 Hz, 1H), 7.31-7.36 (m, 1H), 7.24-7.31 (m, 2H), 7.18-7.23 (m, 2H), 7.05 (dd, J=2.05, 8.51 Hz, 1H), 3.84-3.89 (m, 2H), 3.00-3.14 (m, 2H).
Following the General Procedure J, the title intermediate was prepared from 2-(1H-pyrazol-4-yl) ethanol (472 mg, 4.218 mmol), 2-amino-4-chlorobenzenethiol (1.01 g, 6.327 mmol), PPh3 (2.21 g, 8.436 mmol) and di-tert-butylazodicarboxylate (1.9 g, 8.436 mmol) in CH2Cl2 (20 ml).
1H NMR (600 MHz, CD3OD) δ 7.98 (d, J=0.88 Hz, 1H), 7.64 (s, 1H), 7.23 (d, J=8.22 Hz, 1H), 6.76 (d, J=2.35 Hz, 1H), 6.55 (dd, J=2.05, 8.22 Hz, 1H), 2.89-3.00 (m, 2H), 2.65-2.77 (m, 2H).
Following General Procedure B, the title compound (123 mg) was prepared from 2-((2-(1H-pyrazol-4-yl)ethyl)thio)-5-chloroaniline (157 mg, 0.618 mmol) and benzofuran-2-sulfonyl chloride (133 mg, 0.618 mmol) in pyridine (3 ml).
1H NMR (600 MHz, CD3OD) δ 7.70 (d, J=7.92 Hz, 1H), 7.43-7.53 (m, 3H), 7.39 (s, 1H), 7.28-7.36 (m, 4H), 7.17 (dd, J=1.76, 8.51 Hz, 1H), 2.82 (t, J=7.63 Hz, 2H), 2.45 (t, J=7.63 Hz, 2H).
Following General Procedure C, the title compound (52 mg, 40%) was prepared from N-{5-chloro-2-[(2-pyridin-2-ylethyl)thio]phenyl}-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, CD3OD) δ 7.75-7.81 (m, 1H), 7.72 (td, J=1.76, 7.63 Hz, 1H), 7.67 (d, J=0.88 Hz, 1H), 7.48-7.59 (m, 3H), 7.40-7.45 (m, 2H), 7.19-7.34 (m, 3H), 7.17 (d, J=2.35 Hz, 1H), 3.19-3.26 (m, 3H), 2.87 (t, J=7.63 Hz, 2H).
Following General Procedure D, the title compound (75 mg, 73%) was prepared from N-{5-chloro-2-[(2-pyridin-2-ylethyl)thio]phenyl}-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, CD3OD) δ 7.67-7.74 (m, 2H), 7.62 (d, J=7.63 Hz, 1H), 7.39 (s, 2H), 7.31 (t, J=7.19 Hz, 2H), 7.22-7.26 (m, 1H), 7.17 (d, J=8.22 Hz, 1H), 6.80-6.90 (m, 1H), 3.89 (br. s., 2H), 2.71-2.81 (m, 2H).
Following General Procedure A, the title compound (517 mg, 74%) was prepared from 2-Amino-4-chloro-benzenethiol (590 mg, 3.693 mmol) and 4-(2-bromo-ethyl)-3,5-dimethyl-1H-pyrazole (500 mg, 2.462 mmol), K2CO3(1.7 g, 12.31 mmol) in DMF (20 ml).
1H NMR (600 MHz, CD3OD) δ 7.24 (d, J=8.22 Hz, 1H), 6.77 (d, J=2.05 Hz, 1H), 6.56 (dd, J=2.35, 8.22 Hz, 1H), 2.75-2.80 (m, 2H), 2.53-2.61 (m, 2H), 2.08 (s, 6H).
Following General Procedure B, the title compound (235 mg) was prepared from 2-((2-(1H-pyrazol-4-yl)ethyl)thio)-5-chloroaniline (157 mg, 0.618 mmol) and benzofuran-2-sulfonyl chloride (133 mg, 0.618 mmol) in pyridine (3 ml).
1H NMR (600 MHz, CD3OD) δ 7.68 (dd, J=0.88, 7.92 Hz, 1H), 7.52 (d, J=2.35 Hz, 1H), 7.39-7.47 (m, 3H), 7.27-7.35 (m, 2H), 7.18 (dd, J=2.35, 8.51 Hz, 1H), 2.65-2.72 (m, J=7.63 Hz, 2H), 2.28-2.35 (m, 2H), 1.97 (s, 6H).
(2-Fluoropyridin-3-yl)methanol (508 mg, 3.998 mmol) was first treated with SOCl2 (1.5 ml) in CH2Cl2 (5 ml) at rt for 3 hrs. The solvent was removed to get a crude 3-(chloromethyl)-2-fluoropyridine. Then following General Procedure A, the title compound (910 mg, 85%) was prepared from 2-amino-4-chlorobenzenethiol (957 mg, 5.995 mmol), K2CO3 (2.7 g, 19.98 mmol) in DMF (20 ml).
1H NMR (600 MHz, CD3OD) δ 8.01 (dt, J=0.88, 4.99 Hz, 1H), 7.42 (ddd, J=1.91, 7.48, 9.68 Hz, 1H), 7.10 (ddd, J=1.76, 5.14, 7.19 Hz, 1H), 6.91 (d, J=8.22 Hz, 1H), 6.73 (d, J=2.05 Hz, 1H), 6.42 (dd, J=2.35, 8.22 Hz, 1H), 3.90 (s, 2H).
Following General Procedure B, the title compound (235 mg) was prepared from 5-chloro-2-(((2-fluoropyridin-3-yl)methyl)thio)aniline (522 mg, 1.948 mmol) and benzofuran-2-sulfonyl chloride (421 mg, 1.948 mmol) in pyridine (5 ml).
1H NMR (600 MHz, acetone-d6) δ 9.00 (br. s., 1H), 8.05 (dt, J=1.47, 4.70 Hz, 1H), 7.79 (d, J=6.75 Hz, 1H), 7.55-7.63 (m, 3H), 7.43-7.54 (m, 2H), 7.33-7.40 (m, 1H), 7.26 (d, J=8.22 Hz, 1H), 7.07-7.17 (m, 2H), 4.01 (s, 2H).
Following General Procedure C, the title compound (100 mg, 59%) was prepared from N-(5-chloro-2-{[(2-fluoropyridin-3-yl)methyl]thio}phenyl)-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, CD3OD) δ 7.99 (dd, J=1.91, 4.84 Hz, 1H), 7.65 (d, J=7.34 Hz, 1H), 7.49 (d, J=2.05 Hz, 1H), 7.38 (d, J=8.51 Hz, 1H), 7.28-7.33 (m, 1H), 7.19-7.26 (m, 3H), 7.00 (ddd, J=1.47, 5.21, 7.12 Hz, 1H), 6.81 (d, J=8.22 Hz, 1H), 6.70 (dd, J=2.05, 8.22 Hz, 1H), 4.43-4.59 (m, 2H).
Following General Procedure D, the title compound (176 mg, 67%) was prepared from N-(5-chloro-2-{[(2-fluoropyridin-3-yl)methyl]thio}phenyl)-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, acetone-d6) δ 8.04 (d, J=4.70 Hz, 1H), 7.91 (d, J=2.05 Hz, 1H), 7.70 (d, J=7.63 Hz, 1H), 7.18-7.44 (m, 6H), 6.90 (t, J=5.43 Hz, 1H), 6.67 (d, J=7.63 Hz, 1H), 4.96 (s, 2H).
Following General Procedure A, the title compound (819 mg, 100%) was prepared from 2-amino-4-chlorobenzenethiol (700 mg, 4.39 mmol), (bromomethyl)benzene (560 mg, 2.92 mmol), K2CO3 (2.0 g, 14.62 mmol) in DMF (20 ml).
1H NMR (600 MHz, CD3OD) δ 7.15-7.24 (m, 3H), 7.07-7.13 (m, 2H), 6.97 (d, J=8.22 Hz, 1H), 6.73 (d, J=2.05 Hz, 1H), 6.43 (dd, J=2.05, 8.22 Hz, 1H), 3.86 (s, 2H).
N-[2-(benzylthio)-5-chlorophenyl]-1-benzofuran-2-sulfonamide
Following General Procedure B, the title compound (235 mg) was prepared from 2-(benzylthio)-5-chloroaniline (509 mg, 2.052 mmol) and benzofuran-2-sulfonyl chloride (443 mg, 2.052 mmol) in pyridine (5 ml).
1H NMR (600 MHz, CD3OD) δ 7.73 (d, J=7.92 Hz, 3H), 7.45-7.56 (m, 3H), 7.42 (s, 1H), 7.32-7.38 (m, 1H), 7.10-7.18 (m, 4H), 7.04-7.08 (m, 1H), 6.85-6.94 (m, 2H), 3.81 (s, 2H).
Following General Procedure C, the title compound (139 mg, 84%) was prepared from N-[2-(benzylthio)-5-chlorophenyl]-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, CD3OD) δ 7.65 (d, J=7.92 Hz, 1H), 7.49 (d, J=2.05 Hz, 1H), 7.37 (dd, J=0.73, 8.36 Hz, 1H), 7.28-7.33 (m, 1H), 7.16-7.27 (m, 3H), 7.08-7.14 (m, 2H), 7.01 (d, J=6.75 Hz, 2H), 6.97 (d, J=8.51 Hz, 1H), 6.73 (dd, J=1.91, 8.36 Hz, 1H), 4.50 (d, J=12.91 Hz, 1H), 4.14 (d, J=12.91 Hz, 1H).
Following General Procedure D, the title compound (212 mg, 95%) was prepared from N-[2-(benzylthio)-5-chlorophenyl]-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, CD3OD) δ 7.63-7.73 (m, 2H), 7.40 (dd, J=0.73, 8.36 Hz, 1H), 7.30-7.37 (m, 3H), 7.23-7.29 (m, 1H), 7.08-7.16 (m, 3H), 6.98-7.05 (m, 2H), 6.60 (dd, J=2.05, 8.51 Hz, 1H), 4.99 (s, 2H).
A solution of 5-fluoro-2-methylbenzo[d]thiazole (1.2 g, 7.18 mmol) in ethylene glycol and NaOH (5N, 2 ml) was degassed under N2 for 10 min, then refluxed at 129° C. for 3 hours. The solution was cooled to 0° C. and then acidified to pH 3˜4 using c. HCl. The mixture was extracted with EtOAc (2×50 ml). The organic layer was washed with brine and dried with Na2SO4 and concentrated in vacuo. The crude residue (1.01 g, 98%) was used directly in the next step without purification.
1H NMR (600 MHz, CD3OD) δ 7.24 (dd, J=6.16, 8.51 Hz, 1H), 6.97 (dd, J=6.46, 8.51 Hz, 1H), 6.20 (td, J=2.79, 8.58 Hz, 1H).
Following General Procedure A, the title compound (460 mg, 97%) was prepared from 2-amino-4-fluorobenzenethiol (562 g, 3.93 mmol), 1-(bromomethyl)-3-nitrobenzene (566 mg, 2.62 mmol), K2CO3 (1.8 g, 13.10 mmol) in DMF (10 ml).
1H NMR (600 MHz, CD3OD) δ 8.04 (dt, J=2.09, 7.26 Hz, 1H), 7.89 (s, 1H), 7.34-7.54 (m, 2H), 6.93 (dd, J=6.46, 8.51 Hz, 1H), 6.35-6.53 (m, 1H), 6.15 (td, J=2.64, 8.51 Hz, 1H), 3.95 (s, 2H).
Following General Procedure B, the title compound (474 mg, 63%) was prepared from 2-((3-aminobenzyl)thio)-5-fluoroaniline (460 mg, 1.655 mmol) and benzofuran-2-sulfonyl chloride (357 mg, 1.655 mmol) in pyridine (5 ml).
1H NMR (600 MHz, CD3OD) δ 7.98 (ddd, J=0.88, 2.35, 8.22 Hz, 1H), 7.68-7.79 (m, 2H), 7.49-7.54 (m, 2H), 7.42-7.48 (m, 1H), 7.25-7.39 (m, 4H), 7.16 (dd, J=6.16, 8.80 Hz, 1H), 6.78 (td, J=2.93, 8.36 Hz, 1H), 3.91 (s, 2H).
N-(5-fluoro-2-((3-nitrobenzyl)thio)phenyl)benzofuran-2-sulfonamide (91 mg, 0.199 mmol) was dissolved in MeOH (2 ml). Zn (322 mg, 4.967 mmol) and NH4Cl (1 ml) was added to the solution. After the mixture was stirred for 30 min at room temperature, the solid was filtered and the filtrate was concentrated in vacuo and then the crude residue was purified by column chromatography (0˜30% EtOAc in hexane) to afford the title product (50 mg, 59%).
1H NMR (600 MHz, CD3OD) δ 7.71 (d, J=7.92 Hz, 1H), 7.50-7.54 (m, 1H), 7.48 (d, J=0.88 Hz, 1H), 7.46 (ddd, J=1.32, 7.26, 8.44 Hz, 1H), 7.28-7.38 (m, 2H), 7.19 (dd, J=6.16, 8.80 Hz, 1H), 6.83-6.89 (m, 1H), 6.77 (td, J=2.79, 8.44 Hz, 1H), 6.46-6.54 (m, 1H), 6.36 (t, J=1.76 Hz, 1H), 6.22 (d, J=7.63 Hz, 1H), 3.63 (s, 2H).
Following General Procedure L, the title compound (130 mg, 84%) was prepared from N-{5-fluoro-2-[(3-nitrobenzyl)sulfinyl]phenyl}-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, CD3OD) δ 7.75 (dd, J=0.88, 7.92 Hz, 1H), 7.53-7.60 (m, 2H), 7.48 (ddd, J=1.32, 7.26, 8.44 Hz, 1H), 7.33-7.38 (m, 1H), 7.28 (dd, J=6.16, 8.80 Hz, 1H), 7.14 (dd, J=2.64, 10.27 Hz, 1H), 6.88-7.02 (m, 2H), 6.71 (dt, J=1.06, 8.14 Hz, 1H), 6.57 (s, 1H), 6.41 (d, J=7.63 Hz, 1H), 4.24 (d, J=12.62 Hz, 1H), 4.06 (d, J=12.91 Hz, 1H).
Following General Procedure D, the title compound (136 mg, 74%) was prepared from N-(5-fluoro-2-((3-nitrobenzyl)thio)phenyl)benzofuran-2-sulfonamide.
1H NMR (600 MHz, CD3OD) δ 8.10 (ddd, J=1.17, 2.13, 8.14 Hz, 1H), 7.72-7.81 (m, 3H), 7.65 (dd, J=6.02, 8.95 Hz, 1H), 7.55 (d, J=8.51 Hz, 1H), 7.45-7.51 (m, 3H), 7.41-7.45 (m, 1H), 7.33-7.39 (m, 1H), 6.80-7.09 (m, 1H), 4.70 (s, 2H).
Following General Procedure L, the title compound (91 mg, 81%) was prepared from N-{5-fluoro-2-[(3-nitrobenzyl)sulfonyl]phenyl}-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, acetone-d6) δ 7.87 (br. s., 1H), 7.84 (d, J=7.92 Hz, 2H), 7.57-7.65 (m, 2H), 7.50-7.56 (m, 2H), 7.39 (t, J=7.48 Hz, 1H), 6.94-7.02 (m, 1H), 6.83 (t, J=7.78 Hz, 1H), 6.53 (d, J=8.80 Hz, 1H), 6.38 (s, 1H), 6.13 (d, J=7.34 Hz, 1H), 4.38 (s, 2H).
Following General Procedure K and A, the title compound (474 mg) was prepared from 5-methoxy-2-methylbenzo[d]thiazole.
1H NMR (600 MHz, CD3OD) δ 8.03 (dt, J=2.05, 7.34 Hz, 1H), 7.84 (d, J=1.76 Hz, 1H), 7.34-7.48 (m, 2H), 6.83 (d, J=8.51 Hz, 1H), 6.32 (s, 1H), 6.06 (dd, J=2.79, 8.36 Hz, 1H), 3.90 (s, 2H), 3.69 (s, 3H).
Following General Procedure L, the title compound (82 mg, 70%) was prepared from N-(5-methoxy-2-((3-nitrobenzyl)thio)phenyl)benzofuran-2-sulfonamide.
1H NMR (600 MHz, CD3OD) δ 7.69 (d, J=7.92 Hz, 1H), 7.50 (dd, J=0.88, 8.51 Hz, 1H), 7.40-7.47 (m, 2H), 7.31 (ddd, J=1.03, 7.19, 7.92 Hz, 1H), 7.07-7.13 (m, 2H), 6.84-6.90 (m, 1H), 6.57 (dd, J=2.79, 8.66 Hz, 1H), 6.50-6.54 (m, 1H), 6.37 (t, J=1.91 Hz, 1H), 6.25 (d, J=7.63 Hz, 1H), 3.72 (s, 3H), 3.57 (s, 2H).
Following General Procedure C, the title compound (95 mg, 46%) was prepared from N-(5-methoxy-2-((3-nitrobenzyl)thio)phenyl)benzofuran-2-sulfonamide.
1H NMR (600 MHz, acetone-d6) δ 10.74 (br. s., 1H), 8.16 (ddd, J=0.88, 2.35, 8.22 Hz, 1H), 7.78-7.86 (m, 2H), 7.75 (s, 1H), 7.61 (dd, J=0.88, 8.51 Hz, 1H), 7.56 (t, J=7.92 Hz, 1H), 7.44-7.52 (m, 2H), 7.35-7.40 (m, 1H), 7.09 (d, J=2.35 Hz, 1H), 7.06 (d, J=8.80 Hz, 1H), 6.69 (dd, J=2.49, 8.66 Hz, 1H), 4.45-4.53 (m, 2H), 3.77 (s, 3H).
Following General Procedure L, the title compound (55 mg, 65%) was prepared from N-{5-methoxy-2-[(3-nitrobenzyl)sulfinyl]phenyl}-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, acetone-d6) δ 7.75-7.85 (m, 2H), 7.59 (dd, J=0.59, 8.51 Hz, 1H), 7.44-7.53 (m, 1H), 7.32-7.40 (m, 1H), 7.25 (s, 1H), 6.93 (d, J=8.51 Hz, 1H), 6.85-6.90 (m, 1H), 6.61 (dd, J=2.49, 8.66 Hz, 1H), 6.53-6.58 (m, 1H), 6.40 (t, J=1.76 Hz, 1H), 6.21 (d, J=7.92 Hz, 1H), 4.25 (d, J=12.32 Hz, 1H), 4.08 (d, J=11.74 Hz, 2H), 3.78 (s, 3H).
Following General Procedure D, the title compound (165 mg, 83%) was prepared from N-(5-methoxy-2-((3-nitrobenzyl)thio)phenyl)benzofuran-2-sulfonamide.
1H NMR (600 MHz, CDCl3) δ 9.28 (s, 1H), 8.14-8.19 (m, 1H), 7.70 (d, J=7.63 Hz, 1H), 7.64 (s, 1H), 7.58 (s, 1H), 7.41-7.50 (m, 3H), 7.37 (d, J=9.10 Hz, 1H), 7.33 (td, J=1.03, 7.41 Hz, 1H), 7.29 (d, J=2.35 Hz, 1H), 7.26 (s, 1H), 6.57 (dd, J=2.35, 8.80 Hz, 1H), 4.38 (s, 2H), 3.86 (s, 3H).
Following General Procedure L, the title compound (67 mg, 45%) was prepared from N-(5-methoxy-2-((3-nitrobenzyl)sulfonyl)phenyl)benzofuran-2-sulfonamide.
1H NMR (600 MHz, CD3OD) δ 7.70 (d, J=7.63 Hz, 1H), 7.42-7.50 (m, 2H), 7.35-7.41 (m, 1H), 7.33 (d, J=8.80 Hz, 1H), 7.27-7.31 (m, 1H), 7.22 (d, J=2.35 Hz, 1H), 6.76 (t, J=7.78 Hz, 1H), 6.53 (dd, J=1.32, 8.07 Hz, 1H), 6.45 (s, 1H), 6.39 (d, J=8.51 Hz, 1H), 6.27 (d, J=7.63 Hz, 1H), 4.61 (br. s., 2H), 3.76 (s, 3H).
Following General Procedure B, the title compound (520 mg, 41%) was prepared from 2-((3-nitrobenzyl)thio)aniline (741 mg, 2.85 mmol), benzofuran-2-sulfonyl chloride (616 mg, 2.85 mmol) in pyridine (10 ml).
1H NMR (600 MHz, CD3OD) δ 7.97-8.04 (m, 1H), 7.79-7.89 (m, 1H), 7.70 (d, J=0.88 Hz, 1H), 7.50 (d, J=0.88 Hz, 1H), 7.29-7.47 (m, 6H), 7.15-7.25 (m, 2H), 7.02-7.11 (m, 1H), 3.99 (s, 2H).
Following General Procedure L, the title compound (67 mg, 45%) was prepared from benzofuran-2-sulfonic acid [2-(3-nitro-benzylsulfanyl)-phenyl]-amide.
1H NMR (600 MHz, CD3OD) δ 7.66 (d, J=7.92 Hz, 1H), 7.47-7.52 (m, 1H), 7.38-7.46 (m, 2H), 7.26-7.35 (m, 2H), 7.12-7.22 (m, 2H), 7.04 (td, J=1.47, 7.63 Hz, 1H), 6.88 (t, J=7.78 Hz, 1H), 6.54 (dd, J=1.47, 7.92 Hz, 1H), 6.43 (t, J=1.76 Hz, 1H), 6.28 (d, J=7.63 Hz, 1H), 3.69 (s, 2H).
Following General Procedure C, the title compound (172 mg, 73%) was prepared from benzofuran-2-sulfonic acid [2-(3-nitro-benzylsulfanyl)-phenyl]-amide.
1H NMR (600 MHz, acetone-d6) δ 10.45 (br. s., 1H), 8.15 (d, J=8.22 Hz, 1H), 7.85 (s, 1H), 7.80 (d, J=7.92 Hz, 1H), 7.66 (d, J=0.88 Hz, 1H), 7.59-7.63 (m, 1H), 7.42-7.57 (m, 5H), 7.34-7.40 (m, 1H), 7.13-7.24 (m, 2H), 4.54-4.60 (m, 1H), 4.45-4.51 (m, 1H).
Following General Procedure L, the title compound (122 mg, 90%) was prepared from N-{2-[(3-nitrobenzyl)sulfinyl]phenyl}-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, CD3OD) δ 7.73 (d, J=7.63 Hz, 1H), 7.59 (d, J=8.22 Hz, 1H), 7.43-7.53 (m, 3H), 7.29-7.42 (m, 3H), 7.20 (d, J=7.63 Hz, 1H), 6.97 (t, J=7.63 Hz, 1H), 6.66 (d, J=7.34 Hz, 1H), 6.57 (br. s., 1H), 6.43 (d, J=7.34 Hz, 1H), 4.27 (d, J=12.91 Hz, 1H), 3.99 (d, J=12.91 Hz, 1H).
Following General Procedure L, the title compound (75 mg, 82%) was prepared from N-{2-[(3-nitrobenzyl)sulfonyl]phenyl}-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, acetone-d6)) δ 7.75-7.85 (m, 3H), 7.62-7.70 (m, 1H), 7.59 (d, J=8.51 Hz, 1H), 7.56 (dd, J=1.76, 7.92 Hz, 1H), 7.49 (td, J=1.17, 7.92 Hz, 1H), 7.36 (t, J=7.48 Hz, 1H), 7.16-7.22 (m, 1H), 6.83 (t, J=7.78 Hz, 1H), 6.57 (dd, J=1.47, 7.92 Hz, 1H), 6.43 (t, J=1.91 Hz, 1H), 6.15 (d, J=7.34 Hz, 1H), 4.37 (s, 2H).
Following General Procedure A, the title compound (624 mg, 92%) was prepared from 2-amino-4-chlorobenzenethiol (555 mg, 3.10 mmol), 1-(bromomethyl)-4-nitrobenzene (490 mg, 2.268 mmol) and K2CO3 (1.3 g, 9.50 mmol) in DMF (20 ml).
1H NMR (600 MHz, CD3OD) δ 8.07 (d, J=8.80 Hz, 2H), 7.30 (d, J=8.80 Hz, 2H), 6.93 (d, J=8.22 Hz, 1H), 6.73 (d, J=2.35 Hz, 1H), 6.43 (dd, J=2.35, 8.22 Hz, 1H), 3.97 (s, 2H).
Following General Procedure B, the title compound (475 mg, 72%) was prepared from 5-chloro-2-((4-nitrobenzyl)thio)aniline (411 mg, 1.40 mmol) and benzofuran-2-sulfonyl chloride (303 mg, 1.40 mmol) in pyridine (5 ml).
1H NMR (600 MHz, CD3OD) δ 7.94-8.00 (m, 2H), 7.72 (d, J=7.92 Hz, 1H), 7.50-7.55 (m, 1H), 7.45-7.49 (m, 2H), 7.43 (s, 1H), 7.31-7.38 (m, 1H), 7.11-7.19 (m, 3H), 7.07 (dd, J=2.35, 8.51 Hz, 1H), 3.96 (s, 2H).
Following General Procedure D, the title compound (120 mg, 85%) was prepared from N-{5-chloro-2-[(4-nitrobenzyl)thio]phenyl}-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, acetone-d6) δ 9.59 (br. s., 1H), 8.01 (d, J=7.34 Hz, 2H), 7.86 (s, 1H), 7.76 (d, J=7.92 Hz, 1H), 7.72 (s, 1H), 7.52 (d, J=8.51 Hz, 1H), 7.39-7.49 (m, 2H), 7.25-7.36 (m, 3H), 7.00 (s, 1H), 4.96 (s, 2H).
Following General Procedure L, the title compound (68 mg, 81%) was prepared from N-{5-chloro-2-[(4-nitrobenzyl)sulfonyl]phenyl}-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, acetone-d6) δ 7.75-7.88 (m, 3H), 7.61 (d, J=8.51 Hz, 1H), 7.44-7.54 (m, 2H), 7.34-7.41 (m, 1H), 7.22 (dd, J=1.76, 8.51 Hz, 1H), 6.69 (d, J=8.51 Hz, 2H), 6.49 (d, J=8.51 Hz, 2H), 4.38 (s, 2H).
Following General Procedure A, the title compound (548 mg, 95%) was prepared from 2-amino-4-chlorobenzenethiol (441 mg, 2.76 mmol), 1-(bromomethyl)-2-nitrobenzene (398 mg, 1.84 mmol) and K2CO3 (1.27 g, 9.21 mmol) in DMF (20 ml).
1H NMR (600 MHz, CD3OD) δ 7.89-7.98 (m, 1H), 7.37-7.46 (m, 2H), 6.99-7.04 (m, 1H), 6.81 (d, J=8.22 Hz, 1H), 6.71 (d, J=2.05 Hz, 1H), 6.37 (dd, J=2.05, 8.22 Hz, 1H), 4.22 (s, 2H).
Following General Procedure B, the title compound (485 mg, 69%) was prepared from 5-chloro-2-((2-nitrobenzyl)thio)aniline (435 mg, 1.48 mmol) and benzofuran-2-sulfonyl chloride (320 mg, 1.48 mmol) in pyridine (5 ml).
1H NMR (600 MHz, CDCl3) δ 8.03 (dd, J=1.47, 7.92 Hz, 1H), 7.65-7.71 (m, 2H), 7.48-7.53 (m, 2H), 7.43-7.48 (m, 1H), 7.31-7.42 (m, 3H), 7.03 (d, J=8.22 Hz, 1H), 6.90 (dd, J=2.05, 8.22 Hz, 1H), 6.76 (dd, J=1.32, 7.48 Hz, 1H), 4.16 (s, 2H).
Following General Procedure L, the title compound (44 mg, 40%) was prepared from N-(5-chloro-2-((2-nitrobenzyl)thio)phenyl)benzofuran-2-sulfonamide.
1H NMR (600 MHz, acetone-d6) δ 7.77 (d, J=7.92 Hz, 1H), 7.59 (dd, J=0.88, 8.51 Hz, 1H), 7.47-7.55 (m, 3H), 7.31-7.41 (m, 2H), 7.10 (dd, J=2.35, 8.51 Hz, 1H), 6.86-6.95 (m, 1H), 6.72 (dd, J=0.88, 7.92 Hz, 1H), 6.57 (dd, J=1.32, 7.48 Hz, 1H), 6.38 (td, J=1.03, 7.41 Hz, 1H), 3.97 (s, 2H).
Following General Procedure C, the title compound (160 mg, 79%) was prepared from N-(5-chloro-2-((2-nitrobenzyl)thio)phenyl)benzofuran-2-sulfonamide.
1H NMR (600 MHz, acetone-d6) δ 7.92 (d, J=8.22 Hz, 1H), 7.71 (dd, J=0.73, 7.78 Hz, 1H), 7.59 (d, J=2.05 Hz, 1H), 7.47 (d, J=8.51 Hz, 1H), 7.39-7.44 (m, 1H), 7.33-7.38 (m, 2H), 7.19-7.30 (m, 2H), 6.71-6.80 (m, 2H), 6.67 (d, J=8.22 Hz, 1H), 5.13 (d, J=12.91 Hz, 2H), 4.73 (d, J=12.62 Hz, 2H).
Following General Procedure L, the title compound (67 mg, 50%) was prepared from N-{5-chloro-2-[(2-nitrobenzyl)sulfinyl]phenyl}-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, CD3OD) δ 7.72 (d, J=7.92 Hz, 1H), 7.56 (d, J=7.63 Hz, 1H), 7.44-7.52 (m, 2H), 7.41 (d, J=8.51 Hz, 2H), 7.31-7.37 (m, 1H), 7.28 (d, J=1.47 Hz, 1H), 7.21 (dd, J=1.76, 8.22 Hz, 1H), 7.06-7.13 (m, 1H), 6.88 (d, J=7.92 Hz, 1H), 6.75 (d, J=7.04 Hz, 1H), 6.60-6.67 (m, 1H), 4.50 (d, J=13.50 Hz, 2H), 4.23 (d, J=12.91 Hz, 2H).
Following General Procedure D and K, the title compound (52 mg) was prepared from N-(5-chloro-2-((2-nitrobenzyl)thio)phenyl)benzofuran-2-sulfonamide.
1H NMR (300 MHz, CD3OD) δ 7.69-7.78 (m, 2H), 7.56-7.65 (m, 2H), 7.50-7.55 (m, 1H), 7.45 (td, J=1.17, 7.77 Hz, 1H), 7.28-7.38 (m, 1H), 6.99-7.15 (m, 2H), 6.88 (d, J=7.03 Hz, 1H), 6.67-6.75 (m, 1H), 6.58-6.66 (m, 1H), 4.68 (s, 2H).
Following General Procedure A, the title compound (284 mg, 39%) was prepared from 2-amino-4-chlorobenzenethiol (529 mg, 3.33 mmol), 2-(chloromethyl)pyrimidine (366 mg, 2.22 mmol) and K2CO3 (1.53 g, 11.09 mmol) in DMF (10 ml).
1H NMR (600 MHz, CD3OD) δ 8.65 (d, J=4.99 Hz, 2H), 7.31 (t, J=4.99 Hz, 1H), 7.03 (d, J=8.22 Hz, 1H), 6.70 (s, 1H), 6.43 (dd, J=2.05, 8.22 Hz, 1H), 4.07 (s, 2H).
Following General Procedure B, the title compound (243 mg, 51%) was prepared from 5-chloro-2-((pyrimidin-2-ylmethyl)thio)aniline (280 mg, 1.11 mmol) and benzofuran-2-sulfonyl chloride (240 mg, 1.11 mmol) in pyridine (3 ml).
1H NMR (600 MHz, acetone-d6) δ 11.69 (br. s., 1H), 8.87 (d, J=4.99 Hz, 2H), 7.74 (dd, J=0.88, 7.92 Hz, 1H), 7.66 (s, 1H), 7.62 (d, J=8.22 Hz, 1H), 7.59 (d, J=0.59 Hz, 1H), 7.45-7.52 (m, 3H), 7.33 (ddd, J=1.76, 6.38, 8.00 Hz, 1H), 7.14 (dd, J=2.20, 8.36 Hz, 1H), 4.24 (s, 2H).
Following General Procedure C, the title compound (82 mg) was prepared from N-{5-chloro-2-[(pyrimidin-2-ylmethyl)thio]phenyl}-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, CD3OD) δ 8.68 (dd, J=1.47, 4.99 Hz, 2H), 7.73 (d, J=7.92 Hz, 1H), 7.53-7.60 (m, 2H), 7.45-7.52 (m, 2H), 7.30-7.41 (m, 4H), 4.63 (d, J=13.50 Hz, 1H), 4.46 (d, J=13.50 Hz, 1H).
Following General Procedure D, the title compound (60 mg) was prepared from N-{5-chloro-2-[(pyrimidin-2-ylmethyl)thio]phenyl}-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, DMSO-d6) δ 8.68 (dd, J=1.47, 4.99 Hz, 2H), 7.76 (s, 1H), 7.68 (br. s., 1H), 7.61 (d, J=8.22 Hz, 1H), 7.54-7.58 (m, 2H), 7.46 (t, J=7.34 Hz, 1H), 7.41 (t, J=4.84 Hz, 1H), 7.30-7.37 (m, 1H), 7.19 (d, J=7.92 Hz, 1H), 5.11-5.19 (m, 2H).
To a solution of 4-chloro-3-nitrobenzonitrile (530 mg, 2.88 mmol) in dioxane (5 ml)/water (1 ml) was added Na2S.9H2O 9692 mg, 2.88 mmol). After it was stirred at room temperature for 2 hours, the reaction was quenched with HCl (1N). The mixture was extracted with EtOAc (2×50 ml). The organic layer was washed with water, brine, dried over Na2SO4 and concentrated in vacuo. The title compound was purified by silica gel column chromatography (0˜30% EtOAc in hexane).
1H NMR (600 MHz, acetone-d6) δ 8.67 (d, J=1.76 Hz, 1H), 8.01 (s, 1H), 7.93 (dd, J=1.76, 8.51 Hz, 1H), 5.30 (s, 1H).
Following General Procedure A, the title compound (580 mg, 82%) was prepared from 4-mercapto-3-nitrobenzonitrile (473 mg, 2.63 mmol), (bromomethyl)benzene (449 mg, 2.63 mmol), K2CO3 (1.81 g, 13.14 mmol) in DMF (10 ml).
1H NMR (600 MHz, DMSO-d6) δ 8.68 (d, J=1.76 Hz, 1H), 8.10 (dd, J=1.47, 8.51 Hz, 1H), 7.88 (d, J=8.51 Hz, 1H), 7.43 (d, J=7.34 Hz, 2H), 7.34 (t, J=7.63 Hz, 2H), 7.25-7.30 (m, 1H), 4.44 (s, 2H).
Following General Procedure L, the title compound (372 mg, 81%) was prepared from 4-(benzylthio)-3-nitrobenzonitrile (518 mg, 1.92 mmol).
1H NMR (600 MHz, CD3OD) δ 7.11-7.25 (m, 6H), 6.96 (d, J=1.76 Hz, 1H), 6.71-6.78 (m, 1H), 4.00 (s, 2H).
Following General Procedure B, the title compound (419 mg, 65%) was prepared from 3-amino-4-(benzylthio)benzonitrile (370 mg, 1.54 mmol) and benzofuran-2-sulfonyl chloride (333 mg, 1.54 mmol) in pyridine (3 ml).
1H NMR (600 MHz, CD3OD) δ 7.73 (d, J=8.51 Hz, 1H), 7.65 (d, J=1.17 Hz, 1H), 7.50-7.56 (m, 2H), 7.48 (dd, J=1.47, 8.22 Hz, 1H), 7.39 (ddd, J=2.05, 6.16, 7.92 Hz, 1H), 7.31-7.36 (m, 2H), 7.09-7.20 (m, 3H), 6.92 (d, J=7.04 Hz, 2H), 3.97 (s, 2H).
Following General Procedure C, the title compound (109 mg) was prepared from N-[2-(benzylthio)-5-cyanophenyl]-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, CD3OD) δ 7.74 (d, J=7.63 Hz, 1H), 7.66 (s, 1H), 7.53 (d, J=8.51 Hz, 1H), 7.50 (s, 1H), 7.45 (t, J=7.48 Hz, 1H), 7.30-7.39 (m, 2H), 7.28 (d, J=7.92 Hz, 1H), 7.20-7.25 (m, 1H), 7.16 (t, J=7.48 Hz, 2H), 6.96 (d, J=7.34 Hz, 2H), 4.47 (d, J=13.21 Hz, 1H), 4.21 (d, J=12.91 Hz, 1H).
Following General Procedure D, the title compound (230 mg) was prepared from N-[2-(benzylthio)-5-cyanophenyl]-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, CD3OD) δ 7.97 (d, J=1.47 Hz, 1H), 7.68 (d, J=7.63 Hz, 1H), 7.52 (d, J=8.22 Hz, 1H), 7.43 (s, 1H), 7.32-7.38 (m, 2H), 7.24-7.30 (m, 1H), 7.09-7.18 (m, 3H), 6.98-7.06 (m, 2H), 6.87 (dd, J=1.47, 8.22 Hz, 1H), 5.05 (s, 2H).
Following General Procedure B and D, the title compound was prepared from 5-chloro-2-(methylthio)aniline and 4-chloro-3-(trifluoromethyl)benzene-1-sulfonyl chloride.
1H NMR (300 MHz, CD3OD) δ 8.26 (s, 1H), 8.11 (d, J=8.50 Hz, 1H), 7.74-7.87 (m, 2H), 7.58 (d, J=1.47 Hz, 1H), 7.16 (d, J=8.50 Hz, 1H), 3.19 (s, 3H).
Following General Procedure B, the title compound was prepared from 5-chloro-2-(methylthio)aniline and 4-chloro-3-(trifluoromethyl)benzene-1-sulfonyl chloride.
1H NMR (300 MHz, CDCl3) δ 8.13 (d, J=1.47 Hz, 1H), 7.88 (dd, J=1.90, 8.35 Hz, 1H), 7.60 (dd, J=2.64, 12.60 Hz, 2H), 7.28 (d, J=8.50 Hz, 1H), 7.10 (dd, J=2.05, 8.50 Hz, 1H), 2.21 (s, 3H).
Following General Procedure A and B, the title compound was prepared from 2-amino-4-chloro-benzenethiol, 2-iodo-propane, and 4-chloro-3-(trifluoromethyl)benzene-1-sulfonyl chloride.
1H NMR (300 MHz, CD3OD) δ 8.13 (d, J=1.47 Hz, 1H), 7.92 (dd, J=2.05, 8.50 Hz, 1H), 7.76 (d, J=8.50 Hz, 1H), 7.53 (d, J=2.05 Hz, 1H), 7.33 (d, J=8.50 Hz, 1H), 7.15-7.23 (m, 1H), 3.03-3.21 (m, 1H), 1.06 (d, J=6.45 Hz, 6H).
Following General Procedure A and B, the title compound was prepared from 2-amino-4-chloro-benzenethiol, 2-bromo-ethanol, and 4-chloro-3-(trifluoromethyl)benzene-1-sulfonyl chloride.
1H NMR (300 MHz, CD3OD) δ 8.09 (d, J=1.47 Hz, 1H), 7.92 (dd, J=1.90, 8.35 Hz, 1H), 7.76 (d, J=8.50 Hz, 1H), 7.51 (d, J=2.34 Hz, 1H), 7.41 (d, J=8.50 Hz, 1H), 7.20 (dd, J=2.20, 8.35 Hz, 1H), 3.49 (t, J=6.15 Hz, 2H), 2.80 (t, J=6.15 Hz, 2H).
Following General Procedure C, the title compound (55 mg) was prepared from 4-chloro-N-[5-chloro-2-(isopropylthio)phenyl]-3-(trifluoromethyl)benzenesulfonamide.
Following General Procedure C, the title compound (109 mg) was prepared from 4-chloro-N-{5-chloro-2-[(2-hydroxyethyl)thio]phenyl}-3-(trifluoromethyl)benzenesulfonamide.
1H NMR (300 MHz, CD3OD) δ 8.09 (d, J=1.17 Hz, 1H), 7.96-8.03 (m, 1H), 7.84 (d, J=8.20 Hz, 1H), 7.71 (d, J=8.50 Hz, 1H), 7.44 (dd, J=1.76, 8.50 Hz, 1H), 7.21 (d, J=1.76 Hz, 1H), 3.98 (td, J=4.10, 8.06 Hz, 1H), 3.77-3.88 (m, 1H), 3.19 (ddd, J=5.27, 8.42, 13.26 Hz, 1H), 2.95-3.06 (m, 1H).
Following General Procedure D, the title compound was prepared from 4-chloro-N-{5-chloro-2-[(2-hydroxyethyl)thio]phenyl}-3-(trifluoromethyl)benzenesulfonamide.
1H NMR (600 MHz, CD3OD) δ 8.27 (d, J=1.47 Hz, 1H), 8.11 (dd, J=2.05, 8.51 Hz, 1H), 7.74 (dd, J=8.51, 14.97 Hz, 2H), 7.54-7.59 (m, 1H), 6.96-7.08 (m, 1H), 3.82 (t, J=6.02 Hz, 2H), 3.57-3.68 (m, 2H).
Following General Procedure H, B, and C, the title compound was prepared from 2-amino-4-chlorobenzenethiol.
1H NMR (300 MHz, CD3OD) δ 8.09 (s, 1H), 7.99 (dd, J=1.76, 8.50 Hz, 1H), 7.85 (d, J=8.20 Hz, 1H), 7.71 (d, J=8.50 Hz, 1H), 7.47 (dd, J=1.61, 8.35 Hz, 1H), 7.11 (d, J=1.76 Hz, 1H), 3.63 (s, 3H), 3.24-3.39 (m, 1H), 3.08-3.22 (m, 1H), 2.54-2.82 (m, 2H).
Following General Procedure A and B, the title compound was prepared from 2-amino-4-chlorobenzenethiol.
1H NMR (600 MHz, CD3OD) δ 8.63 (d, J=3.81 Hz, 1H), 8.03 (d, J=2.35 Hz, 1H), 7.87 (dd, J=2.20, 8.36 Hz, 1H), 7.75 (td, J=1.76, 7.63 Hz, 1H), 7.70 (d, J=8.51 Hz, 1H), 7.54 (d, J=2.35 Hz, 1H), 7.37 (d, J=8.51 Hz, 1H), 7.32-7.35 (m, 1H), 7.21 (d, J=7.63 Hz, 1H), 7.13 (dd, J=2.35, 8.22 Hz, 1H), 4.00 (s, 2H).
Following General Procedure A and B, the title compound was prepared from 2-amino-4-chlorobenzenethiol.
1H NMR (600 MHz, CD3OD) δ 8.38 (d, J=3.82 Hz, 1H), 8.25 (br. s., 1H), 8.11 (d, J=2.35 Hz, 1H), 7.93 (dd, J=2.05, 8.51 Hz, 1H), 7.78 (d, J=8.51 Hz, 1H), 7.60 (dt, J=1.91, 7.92 Hz, 1H), 7.39 (d, J=2.35 Hz, 1H), 7.33 (dd, J=4.84, 7.78 Hz, 1H), 7.20 (d, J=8.51 Hz, 1H), 7.14 (s, J=2.35, 2.35, 8.51, 8.51 Hz, 1H), 3.95 (s, 2H).
Following General Procedure C, the title compound was prepared from 4-chloro-N-{5-chloro-2-[(pyridin-2-ylmethyl)thio]phenyl}-3-(trifluoromethyl)benzenesulfonamide.
1H NMR (600 MHz, DMSO-d6) δ 8.44 (d, J=4.40 Hz, 1H), 8.03 (d, J=2.05 Hz, 1H), 7.98 (dd, J=2.05, 8.22 Hz, 1H), 7.88 (d, J=8.22 Hz, 1H), 7.74 (t, 1H), 7.25-7.33 (m, 2H), 7.20 (d, J=7.63 Hz, 1H), 7.14 (br. s., 1H), 7.03 (d, J=1.47 Hz, 1H), 4.49 (d, J=12.62 Hz, 1H), 4.06 (d, J=12.91 Hz, 1H).
Following General Procedure C, the title compound was prepared from 4-chloro-N-{5-chloro-2-[(pyridin-3-ylmethyl)thio]phenyl}-3-(trifluoromethyl)benzenesulfonamide.
1H NMR (600 MHz, CD3OD) δ 8.35 (dd, J=1.61, 4.84 Hz, 1H), 8.24 (d, J=2.35 Hz, 1H), 8.07 (d, J=2.05 Hz, 1H), 8.03 (d, J=1.76 Hz, 1H), 7.71 (d, J=8.51 Hz, 1H), 7.38 (s, 1H), 7.27 (d, J=2.05 Hz, 1H), 7.23-7.26 (m, 1H), 6.75 (d, J=8.22 Hz, 1H), 6.65 (dd, J=1.91, 8.36 Hz, 1H), 4.45 (d, J=13.50 Hz, 1H), 4.37 (d, J=13.21 Hz, 1H).
To a solution of N,N′-[dithiobis(5-chloro-2,1-phenylene)]bis[4-chloro-3-(trifluoromethyl)benzenesulfonamide] Intermediate 5 (106 mg, 0.13 mmol) in THF (3 ml) at 0° C. was added NaBH4 (20 mg, 0.53 mmol), the mixture was stirred at room temperature for 1 h, diluted with H2O, acidified carefully with 6 M HCl, extracted with EtOAc. The organic layer was washed with brine, dried over Na2SO4, and concentrated in vacuo to yield 109 mg off-white solid as the title compound.
1H NMR (600 MHz, METHANOL-d4) δ 8.05 (s, 1H), 7.91 (d, J=8.51 Hz, 1H), 7.78 (d, J=8.51 Hz, 1H), 7.30 (dd, J=1.47, 8.22 Hz, 1H), 7.23-7.25 (m, 1H), 7.14 (dd, J=2.20, 8.36 Hz, 1H).
Following General Procedure A and C, the title compound was prepared from 4-Chloro-N-(5-chloro-2-mercapto-phenyl)-3-trifluoromethyl-benzenesulfonamide Intermediate 34 and ethyl 2-bromoacetate.
1H NMR (300 MHz, CD3OD) δ 8.06 (s, 1H), 7.96 (d, J=8.50 Hz, 1H), 7.84 (dd, J=8.50, 10.84 Hz, 2H), 7.52 (dd, J=1.61, 8.64 Hz, 1H), 7.06 (d, J=1.47 Hz, 1H), 4.17 (q, J=7.23 Hz, 2H), 4.06 (d, J=14.65 Hz, 1H), 3.88 (d, J=14.36 Hz, 1H), 1.22 (t, J=7.18 Hz, 3H).
To a solution of N,N′-[dithiobis(5-chloro-2,1-phenylene)]bis[4-chloro-3-(trifluoromethyl)benzenesulfonamide] Intermediate 5 (105 mg, 0.13 mmol) in CH2Cl2 (2 ml), MeOH (0.5 ml), and H2O (0.25 ml) was added polymer-bound triphenylphosphine (˜3 mmol/g triphenylphosphine loading, 87 mg, 0.26 mmol), cyclopent-2-enone (33 μl, 0.39 mmol), and PTSA (catalytic amount). The reaction was stirred at room temperature for 4 h and was directly purified by column chromatography on silica gel (0→100% ethyl acetate in hexane) to yield the title compound as an off-white solid (133 mg, 100%).
1H NMR (600 MHz, CHLOROFORM-d) δ 8.16 (d, J=2.35 Hz, 1H), 7.93 (dd, J=2.35, 8.51 Hz, 1H), 7.89 (s, 1H), 7.62-7.65 (m, 2H), 7.35 (d, J=8.22 Hz, 1H), 7.07 (dd, J=2.20, 8.36 Hz, 1H), 3.46 (quin, J=6.53 Hz, 1H), 2.44-2.49 (m, 1H), 2.38-2.44 (m, 1H), 2.21 (s, 2H), 2.05-2.11 (m, 1H), 1.84-1.90 (m, 1H).
Following General Procedure D, followed by treatment of the crude product with NaBH4 in MeOH, the title compound was prepared from 4-Chloro-N-[5-chloro-2-(3-oxo-cyclopentylsulfanyl)-phenyl]-3-trifluoromethyl-benzenesulfonamide (Intermediate 35).
1H NMR (600 MHz, CD3OD) δ 8.13 (d, J=2.05 Hz, 1H), 7.99 (dd, J=2.20, 8.36 Hz, 1H), 7.73 (d, J=8.51 Hz, 1H), 7.46 (d, J=8.51 Hz, 1H), 7.34 (d, J=2.05 Hz, 1H), 7.06 (dd, J=2.05, 8.51 Hz, 1H), 4.17-4.22 (m, 1H), 3.70-3.77 (m, 1H), 2.19-2.26 (m, 1H), 1.90-2.00 (m, 1H), 1.78-1.86 (m, 1H), 1.62-1.76 (m, 2H), 1.29-1.38 (m, 1H).
Following General Procedure D, the title compound was prepared from 4-chloro-N-[5-chloro-2-(ethylthio)phenyl]-3-(trifluoromethyl)benzenesulfonamide.
1H NMR (600 MHz, CD3OD) δ 8.30 (d, J=1.76 Hz, 1H), 8.14 (dd, J=2.20, 8.36 Hz, 1H), 7.72-7.80 (m, 2H), 7.64 (d, J=2.05 Hz, 1H), 7.10 (br. s., 1H), 3.30-3.38 (m, 2H), 1.09 (t, J=7.34 Hz, 3H)
Following General Procedure G, the title compound was prepared from N,N′-[dithiobis(5-chloro-2,1-phenylene)]bis[4-chloro-3-(trifluoromethyl)benzenesulfonamide] Intermediate 5 and 2-chloro-N,N-dimethyl-acetamide.
1H NMR (600 MHz, CD3OD) δ 8.09 (d, J=2.35 Hz, 1H), 7.94 (dd, J=2.05, 8.51 Hz, 1H), 7.76 (d, J=8.22 Hz, 1H), 7.47-7.50 (m, 2H), 7.18 (dd, J=2.35, 8.51 Hz, 1H), 3.68 (s, 2H), 2.97 (s, 3H), 2.93 (s, 3H).
Following General Procedure G, the title compound was prepared from N,N′-[dithiobis(5-chloro-2,1-phenylene)]bis[4-chloro-3-(trifluoromethyl)benzenesulfonamide] Intermediate 5 and 2-chloro-N-methyl-acetamide.
1H NMR (600 MHz, CD3OD) δ 8.09 (d, J=2.35 Hz, 1H), 7.93 (dd, J=2.35, 8.51 Hz, 1H), 7.76 (d, J=8.51 Hz, 1H), 7.48 (d, J=2.35 Hz, 1H), 7.44 (d, J=8.22 Hz, 1H), 7.20 (dd, J=2.35, 8.51 Hz, 1H), 3.40 (s, 2H), 2.69 (s, 3H).
Following General Procedure C, the title compound was prepared from 2-{[4-chloro-2-({[4-chloro-3-(trifluoromethyl)phenyl]sulfonyl}amino)phenyl]thio}-N,N-dimethylacetamide.
1H NMR (600 MHz, CD3OD) δ 8.16 (d, J=2.35 Hz, 1H), 8.01 (dd, J=2.05, 8.22 Hz, 1H), 7.68 (d, J=8.51 Hz, 1H), 7.45 (d, J=8.51 Hz, 1H), 7.28 (d, J=1.76 Hz, 1H), 6.90 (dd, J=2.05, 8.22 Hz, 1H), 4.65-4.71 (m, 1H), 3.51-3.57 (m, 1H), 3.11 (s, 3H), 2.98 (s, 3H).
Following General Procedure D, the title compound was prepared from 2-{[4-chloro-2-({[4-chloro-3-(trifluoromethyl)phenyl]sulfonyl}amino)phenyl]thio}-N,N-dimethylacetamide.
1H NMR (600 MHz, CD3OD) δ 8.29 (d, J=2.05 Hz, 1H), 8.09-8.14 (m, 1H), 7.72 (d, J=8.51 Hz, 1H), 7.68 (d, J=8.51 Hz, 1H), 7.48 (d, J=1.76 Hz, 1H), 6.81 (d, J=8.22 Hz, 1H), 3.16 (s, 3H), 3.00 (s, 3H).
Following General Procedure C, the title compound was prepared from 2-{[4-chloro-2-({[4-chloro-3-(trifluoromethyl)phenyl]sulfonyl}amino)phenyl]thio}-N-methylacetamide.
1H NMR (600 MHz, CD3OD) δ 8.15 (d, J=2.05 Hz, 1H), 8.01 (dd, J=2.20, 8.36 Hz, 1H), 7.72 (d, J=8.51 Hz, 1H), 7.51 (d, J=8.22 Hz, 1H), 7.22 (d, J=2.05 Hz, 1H), 7.02 (dd, J=1.91, 8.36 Hz, 1H), 4.21 (d, J=13.50 Hz, 1H), 3.49 (d, J=13.21 Hz, 1H), 2.76 (s, 3H)
Following General Procedure D, the title compound was prepared from 2-{[4-chloro-2-({[4-chloro-3-(trifluoromethyl)phenyl]sulfonyl}amino)phenyl]thio}-N-methylacetamide.
1H NMR (600 MHz, CD3OD) δ 8.29 (d, J=2.05 Hz, 1H), 8.09-8.13 (m, 1H), 7.69 (d, J=8.51 Hz, 1H), 7.66 (d, J=8.22 Hz, 1H), 7.44 (d, J=2.05 Hz, 1H), 6.75 (dd, J=1.91, 8.66 Hz, 1H), 2.77 (s, 3H).
Following General Procedure G, the title compound was prepared from N,N′-[dithiobis(5-chloro-2,1-phenylene)]bis[4-chloro-3-(trifluoromethyl)benzenesulfonamide] Intermediate 5 and 2-bromo-ethylamine hydrobromide.
1H NMR (600 MHz, CD3OD) δ 8.18 (d, J=2.05 Hz, 1H), 7.99 (dd, J=2.05, 8.22 Hz, 1H), 7.65 (d, J=8.51 Hz, 1H), 7.38 (d, J=8.22 Hz, 1H), 7.30 (d, J=2.35 Hz, 1H), 6.72 (dd, J=2.35, 8.22 Hz, 1H), 2.96-3.05 (m, 4H).
Following General Procedure D, followed by treatment of the crude product with excess zinc dust in MeOH, aqueous NH4Cl and HOAc at room temperature for 2 h, the title compound was prepared from N-{2-[(2-aminoethypthio]-5-chlorophenyl}-4-chloro-3-(trifluoromethyl)benzenesulfonamide.
1H NMR (600 MHz, CD3OD) δ 8.27 (d, J=2.05 Hz, 1H), 8.10 (dd, J=1.91, 8.36 Hz, 1H), 7.74 (d, J=8.51 Hz, 1H), 7.67 (d, J=8.51 Hz, 1H), 7.42 (d, J=1.76 Hz, 1H), 6.80 (dd, J=2.05, 8.51 Hz, 1H), 3.88-3.92 (m, 2H), 3.45-3.51 (m, 2H).
Following General Procedure C, the title compound was prepared from N-{2-[(2-aminoethyl)thio]-5-chlorophenyl}-4-chloro-3-(trifluoromethyl)benzenesulfonamide.
1H NMR (300 MHz, CD3OD) δ 8.15 (d, J=1.76 Hz, 1H), 8.00 (dd, J=1.90, 8.35 Hz, 1H), 7.69 (d, J=8.21 Hz, 1H), 7.46 (d, J=8.50 Hz, 1H), 7.25 (d, J=2.05 Hz, 1H), 6.94 (dd, J=1.90, 8.35 Hz, 1H), 3.53-3.67 (m, 1H), 3.36-3.50 (m, 1H), 3.17-3.31 (m, 2H).
Following General Procedure O, the title compound was prepared from N,N′-[dithiobis(5-chloro-2,1-phenylene)]bis(1-benzofuran-2-sulfonamide) Intermediate 8 and N,N-dimethyl-acrylamide.
1H NMR (600 MHz, CD3OD) δ 7.69 (d, J=7.92 Hz, 1H), 7.53-7.56 (m, 1H), 7.45-7.49 (m, 2H), 7.39 (s, 1H), 7.37 (d, J=8.51 Hz, 1H), 7.31-7.35 (m, 1H), 7.17-7.20 (m, 1H), 2.90 (t, J=7.19 Hz, 2H), 2.87 (s, 3H), 2.85 (s, 3H), 2.33 (t, J=7.19 Hz, 2H).
Following General Procedure C, the title compound was prepared from 3-({2-[(1-benzofuran-2-ylsulfonyl)amino]-4-chlorophenyl}thio)-N,N-dimethylpropanamide.
1H NMR (600 MHz, CD3OD) δ 7.72 (d, J=7.34 Hz, 1H), 7.64 (d, J=8.22 Hz, 1H), 7.58 (d, J=8.51 Hz, 1H), 7.46-7.51 (m, 1H), 7.46 (s, 1H), 7.39 (d, J=1.76 Hz, 1H), 7.32-7.37 (m, 2H), 3.27-3.34 (m, 1H), 3.16-3.24 (m, 1H), 2.96 (s, 3H), 2.90 (s, 3H), 2.77-2.86 (m, 1H), 2.59-2.66 (m, 1H).
Following General Procedure D, the title compound was prepared from 3-({2-[(1-benzofuran-2-ylsulfonyl)amino]-4-chlorophenyl}thio)-N,N-dimethylpropanamide.
1H NMR (300 MHz, CD3OD) δ 7.59-7.75 (m, 3H), 7.40-7.49 (m, 1H), 7.30-7.41 (m, 1H), 7.20-7.30 (m, 2H), 6.79 (dd, J=1.76, 8.50 Hz, 1H), 3.94 (t, J=7.47 Hz, 2H), 2.87 (s, 3H), 2.81 (s, 3H), 2.59 (t, J=7.47 Hz, 2H).
Following General Procedure D and E, the title compound was prepared from tert-butyl {6-[({2-[(1-benzofuran-2-ylsulfonyl)amino]-4-chlorophenyl}thio)methyl]pyridin-2-yl}carbamate.
1H NMR (300 MHz, CD3OD) δ 7.77 (d, J=1.76 Hz, 1H), 7.59-7.71 (m, 2H), 7.29-7.44 (m, 3H), 7.20-7.29 (m, 1H), 7.10 (t, J=7.91 Hz, 1H), 6.77-6.88 (m, 2H), 6.57 (d, J=7.33 Hz, 1H), 5.41 (br. s., 2H), 4.57 (br. s., 1H).
To a solution of N-{2-[(2-aminoethyl)sulfonyl]-5-chlorophenyl}-4-chloro-3-(trifluoromethyl)benzenesulfonamide (23 mg, 0.048 mmol) in CH2Cl2 (2 ml) was added Et3N (14 μl, 0.10 mmol), acetic anhydride (5 μl, 0.053 mmol), and catalytic amount of DMAP. The reaction was stirred at room temperature for 1 h and was concentrated. The crude product was purified by column chromatography on silica gel (0→10% MeOH in ethyl acetate), followed by PTLC (10% MeOH in ethyl acetate) to give the title compound.
1H NMR (600 MHz, CD3OD) δ 8.29 (d, J=2.05 Hz, 1H), 8.13 (dd, J=2.05, 8.51 Hz, 1H), 7.65-7.75 (m, 2H), 7.51 (d, J=2.05 Hz, 1H), 6.82 (dd, J=2.05, 8.51 Hz, 1H), 3.75 (t, J=6.60 Hz, 2H), 3.51 (t, J=6.60 Hz, 2H), 1.86 (s, 3H).
Following General Procedure P and C, the title compound was prepared from N-{2-[(2-aminoethyl)thio]-5-chlorophenyl}-4-chloro-3-(trifluoromethyl)benzenesulfonamide.
1H NMR (600 MHz, CD3OD) δ 8.12 (s, 1H), 8.01 (dd, J=1.91, 8.36 Hz, 1H), 7.77 (d, J=8.51 Hz, 1H), 7.56 (d, J=8.22 Hz, 1H), 7.17 (s, 1H), 7.13 (d, J=7.63 Hz, 1H), 3.60-3.71 (m, 1H), 3.44-3.54 (m, 1H), 3.33-3.42 (m, 1H), 3.04-3.15 (m, 1H), 1.98 (s, 3H).
To a solution of 4-chloro-butyryl chloride (1.12 ml, 10.0 mmol) and dimethyl-amine hydrochloride (4.1 g, 50.0 mmol) in THF at 5° C. was added 2M NaOH (30 ml, 60.0 mmol) dropwise over 30 minutes while maintaining reaction temperature between 5-10° C. The reaction was stirred for additional 1.5 h and was concentrated, extracted with EtOAc (×2). The combined organic layer was washed with 1M HCl (×2), brine, dried over Na2SO4, and concentrated in vacuo to yield the title compound as colorless oil (1.5 g, ˜100%). The crude was used without further purification.
Following General Procedure G and C, the title compound was prepared from N,N′-[dithiobis(5-chloro-2,1-phenylene)]bis(1-benzofuran-2-sulfonamide) Intermediate 8 and 4-chloro-N,N-dimethyl-butyramide.
1H NMR (300 MHz, CD3OD) δ 7.68 (d, J=7.62 Hz, 1H), 7.53 (d, J=2.05 Hz, 1H), 7.35-7.49 (m, 3H), 7.32 (d, J=0.88 Hz, 1H), 7.25-7.32 (m, 1H), 6.95 (dd, J=2.05, 8.20 Hz, 1H), 3.33-3.49 (m, 1H), 2.98 (s, 3H), 2.91-3.08 (m, 1H), 2.90 (s, 3H), 2.38-2.57 (m, 2H), 1.92-2.09 (m, 2H).
Following General Procedure G and D, the title compound was prepared from N,N′-[dithiobis(5-chloro-2,1-phenylene)]bis(1-benzofuran-2-sulfonamide) Intermediate 8 and 4-chloro-N,N-dimethyl-butyramide.
1H NMR (600 MHz, CD3OD) δ 7.76 (s, 1H), 7.74 (d, J=8.51 Hz, 1H), 7.70 (d, J=7.92 Hz, 1H), 7.38-7.48 (m, 3H), 7.31 (t, J=7.34 Hz, 1H), 6.86-7.05 (m, 1H), 3.46-3.69 (m, 2H), 2.97 (s, 3H), 2.91 (s, 3H), 2.43-2.59 (m, 2H), 1.93-2.09 (m, 2H).
Following General Procedure B and C, the title compound was prepared from 5-chloro-2-(methylthio)aniline and 5-chloro-benzofuran-2-sulfonyl chloride (CAS #: 128852-02-8) (Bioorganic & Medicinal Chemistry 13 (2005) 3927-3954).
1H NMR (300 MHz, CDCl3) δ 11.00 (br. s., 1H), 7.80 (d, J=1.47 Hz, 1H), 7.68 (d, J=1.76 Hz, 1H), 7.40-7.54 (m, 3H), 7.05-7.16 (m, 2H), 2.91 (s, 3H).
Following General Procedure B and D, the title compound was prepared from 5-chloro-2-(methylthio)aniline and 5-chloro-benzofuran-2-sulfonyl chloride (CAS #: 128852-02-8) (Bioorganic & Medicinal Chemistry 13 (2005) 3927-3954).
1H NMR (600 MHz, CD3OD) δ 7.74 (s, 1H), 7.74 (d, J=5.58 Hz, 1H), 7.64 (d, J=1.76 Hz, 1H), 7.43 (d, J=8.80 Hz, 1H), 7.30-7.35 (m, 2H), 6.88 (dd, J=2.05, 8.51 Hz, 1H), 3.33 (s, 3H).
Following General Procedure C and E, the title compound was prepared from tert-butyl 3-[({2-[(1-benzofuran-2-ylsulfonyl)amino]-4-chlorophenyl}thio)methyl]-1H-pyrazole-1-carboxylate (Compound 22).
1H NMR (600 MHz, CD3OD) δ 7.67 (d, J=7.63 Hz, 1H), 7.42-7.47 (m, 2H), 7.41 (d, J=2.05 Hz, 1H), 7.37 (td, J=1.47, 7.78 Hz, 1H), 7.32 (d, J=0.88 Hz, 1H), 7.28 (td, J=0.88, 7.48 Hz, 1H), 7.22 (d, J=8.51 Hz, 1H), 6.96 (dd, J=1.76, 8.51 Hz, 1H), 5.92 (s, 1H), 4.56 (d, J=13.50 Hz, 1H), 4.28 (d, J=13.50 Hz, 1H).
Following General Procedure B and C, the title compound was prepared from 5-chloro-2-(methylthio)aniline and 4-isopropyl-benzenesulfonyl chloride.
1H NMR (600 MHz, CHLOROFORM-d) δ 10.42 (br. s., 1H), 7.80-7.86 (m, 2H), 7.68 (s, 1H), 7.35 (s, 2H), 7.05-7.08 (m, 1H), 7.01-7.03 (m, 1H), 2.94 (spt, J=6.90 Hz, 1H), 2.69 (s, 3H), 1.22 (d, J=7.04 Hz, 6H).
Following General Procedure B, the title compound was prepared from 5-chloro-2-(methylthio)aniline and 4-bromo-benzenesulfonyl chloride.
1H NMR (600 MHz, CHLOROFORM-d) δ 7.65-7.68 (m, 2H), 7.61-7.63 (m, 2H), 7.58-7.60 (m, 2H), 7.29 (d, J=8.22 Hz, 1H), 7.04 (dd, J=2.20, 8.36 Hz, 1H), 2.17 (s, 3H).
Following General Procedure B, the title compound was prepared from 5-chloro-2-(methylthio)aniline and 4-iodo-benzenesulfonyl chloride.
1H NMR (600 MHz, CHLOROFORM-d) δ 7.80 (d, J=8.80 Hz, 2H), 7.62-7.64 (m, 1H), 7.61 (d, J=2.05 Hz, 1H), 7.49-7.53 (m, 2H), 7.30 (d, J=8.22 Hz, 1H), 7.04 (dd, J=2.20, 8.36 Hz, 1H), 2.17 (s, 3H).
Following General Procedure C, the title compound was prepared from 4-bromo-N-[5-chloro-2-(methylthio)phenyl]benzenesulfonamide.
1H NMR (600 MHz, CHLOROFORM-d) δ 10.63-10.77 (m, 1H), 7.79-7.82 (m, 2H), 7.64-7.68 (m, 3H), 7.05 (dd, J=1.17, 2.35 Hz, 2H), 2.79 (s, 3H).
Following General Procedure C, the title compound was prepared from N-[5-chloro-2-(methylthio)phenyl]-4-iodobenzenesulfonamide.
1H NMR (600 MHz, CHLOROFORM-d) δ 10.69 (br. s., 1H), 7.83-7.91 (m, 2H), 7.61-7.69 (m, 3H), 7.01-7.08 (m, 2H), 2.79 (s, 3H).
Following General Procedure D, the title compound was prepared from 4-bromo-N-[5-chloro-2-(methylthio)phenyl]benzenesulfonamide.
1H NMR (600 MHz, CHLOROFORM-d) δ 9.20-9.27 (m, 1H), 7.80 (dd, J=1.32, 8.36 Hz, 2H), 7.76 (d, J=8.51 Hz, 1H), 7.68 (dd, J=1.47, 8.80 Hz, 2H), 7.25 (d, J=1.47 Hz, 1H), 7.18-7.21 (m, 1H), 2.93 (d, J=1.47 Hz, 3H).
Following General Procedure D, the title compound was prepared from N-[5-chloro-2-(methylthio)phenyl]-4-iodobenzenesulfonamide.
1H NMR (600 MHz, CHLOROFORM-d) δ 9.17-9.25 (m, 1H), 7.90 (d, J=8.51 Hz, 2H), 7.76 (d, J=8.51 Hz, 1H), 7.67 (d, J=1.76 Hz, 1H), 7.64 (d, J=8.51 Hz, 2H), 7.19 (dd, J=1.76, 8.51 Hz, 1H), 2.93 (s, 3H).
Following General Procedure A and B, the title compound was prepared from 2-amino-4-chloro-benzenethiol, 2-bromomethyl-pyridine hydrobromide, and benzofuran-2-sulfonyl chloride.
1H NMR (600 MHz, CHLOROFORM-d) δ 12.32 (br. s, 1H), 8.87 (dt, J=0.77, 4.92 Hz, 1H), 7.76 (d, J=2.05 Hz, 1H), 7.58-7.65 (m, 2H), 7.44 (dd, J=0.88, 8.22 Hz, 1H), 7.34-7.42 (m, 3H), 7.25-7.30 (m, 2H), 7.06 (d, J=7.63 Hz, 1H), 6.96-7.01 (m, 1H), 3.98 (s, 2H).
Following General Procedure A and B, the title compound was prepared from 2-amino-4-chloro-benzenethiol, 3-bromomethyl-pyridine hydrobromide, and benzofuran-2-sulfonyl chloride.
1H NMR (600 MHz, CHLOROFORM-d) δ 8.42 (dd, J=1.61, 4.84 Hz, 1H), 8.12 (d, J=1.76 Hz, 2H), 7.66-7.70 (m, 2H), 7.50 (d, J=1.17 Hz, 1H), 7.46-7.49 (m, 1H), 7.42-7.46 (m, 1H), 7.33 (ddd, J=1.17, 6.97, 8.00 Hz, 1H), 7.26-7.29 (m, 1H), 7.13 (ddd, J=0.88, 4.70, 7.92 Hz, 1H), 7.00 (d, J=8.51 Hz, 1H), 6.89 (dd, J=2.20, 8.36 Hz, 1H), 3.75 (s, 2H).
Following General Procedure C, the title compound was prepared from N-{5-chloro-2-[(pyridin-3-ylmethyl)thio]phenyl}-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, METHANOL-d4) δ 8.28 (d, J=4.11 Hz, 1H), 7.86 (br. s., 1H), 7.68-7.71 (m, J=0.73, 1.32 Hz, 1H), 7.54 (d, J=1.76 Hz, 1H), 7.36-7.41 (m, 2H), 7.31-7.35 (m, 1H), 7.25-7.29 (m, J=1.03, 7.78 Hz, 1H), 7.24 (d, J=7.92 Hz, 1H), 7.12 (dd, J=4.99, 7.63 Hz, 1H), 6.73 (d, J=8.51 Hz, 1H), 6.68 (dd, J=2.05, 8.51 Hz, 1H), 4.55 (s, 2H).
Following General Procedure C, the title compound was prepared from N-{5-chloro-2-[(pyridin-3-ylmethyl)thio]phenyl}-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, METHANOL-d4) δ 8.10-8.14 (m, 1H), 8.01 (t, J=1.47 Hz, 1H), 7.66-7.68 (m, 1H), 7.42-7.49 (m, 2H), 7.34 (ddd, J=1.17, 7.12, 8.44 Hz, 1H), 7.23-7.29 (m, 2H), 7.14 (dd, J=6.60, 7.78 Hz, 1H), 6.87 (d, J=7.92 Hz, 1H), 6.83 (d, J=8.22 Hz, 1H), 6.71 (dd, J=2.05, 8.22 Hz, 1H), 4.63 (d, J=13.21 Hz, 1H), 4.37 (d, J=13.21 Hz, 1H).
Following General Procedure D, the title compound was prepared from N-{5-chloro-2-[(pyridin-3-ylmethyl)thio]phenyl}-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, METHANOL-d4) δ 8.27 (d, J=4.11 Hz, 1H), 8.04 (br. s., 1H), 7.78 (t, J=1.76 Hz, 1H), 7.65 (d, J=7.92 Hz, 1H), 7.46 (d, J=0.88 Hz, 1H), 7.31-7.37 (m, 2H), 7.27-7.31 (m, 1H), 7.21-7.26 (m, 2H), 7.06 (dd, J=5.14, 7.48 Hz, 1H), 6.67 (dt, J=1.76, 8.51 Hz, 1H), 4.98 (s, 2H).
Following General Procedure D, the title compound was prepared from N-{5-chloro-2-[(pyridin-3-ylmethyl)thio]phenyl}-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, DMSO-d6) δ 8.01-8.08 (m, 2H), 7.68 (d, J=7.92 Hz, 1H), 7.53 (d, J=8.22 Hz, 1H), 7.46-7.48 (m, 1H), 7.31-7.37 (m, 2H), 7.23-7.27 (m, 2H), 7.11-7.15 (m, 1H), 6.98 (d, J=7.92 Hz, 1H), 6.58-6.61 (m, 1H), 5.09 (s, 2H).
Following General Procedure G, the title compound was prepared from N,N′-[dithiobis(5-chloro-2,1-phenylene)]bis(1-benzofuran-2-sulfonamide) Intermediate 8 and 1-bromomethyl-3-nitro-benzene.
1H NMR (600 MHz, CHLOROFORM-d) δ 8.08 (s, 1H), 8.02 (ddd, J=1.17, 2.35, 8.22 Hz, 1H), 7.77 (t, J=2.05 Hz, 1H), 7.65-7.69 (m, 2H), 7.50 (d, J=0.88 Hz, 1H), 7.45-7.48 (m, 1H), 7.41-7.45 (m, 1H), 7.30-7.36 (m, 2H), 7.21 (dq, J=0.88, 7.63 Hz, 1H), 7.03 (d, J=8.22 Hz, 1H), 6.89 (dd, J=2.05, 8.22 Hz, 1H), 3.84 (s, 2H).
Following General Procedure G, the title compound was prepared from N,N′-[dithiobis(5-chloro-2,1-phenylene)]bis(1-benzofuran-2-sulfonamide) Intermediate 8 and 1-bromomethyl-3-methoxy-benzene.
1H NMR (600 MHz, CHLOROFORM-d) δ 8.11 (s, 1H), 7.64-7.68 (m, 2H), 7.40-7.50 (m, 3H), 7.31 (ddd, J=0.88, 7.04, 7.92 Hz, 1H), 7.07-7.13 (m, 2H), 6.90 (dd, J=2.05, 8.22 Hz, 1H), 6.73 (ddd, J=1.17, 2.49, 8.36 Hz, 1H), 6.53-6.56 (m, 1H), 6.48 (t, J=2.35 Hz, 1H), 3.74 (s, 2H), 3.66 (s, 3H).
Following General Procedure C, the title compound was prepared from N-{5-chloro-2-[(pyridin-2-ylmethyl)thio]phenyl}-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, METHANOL-d4) δ 8.46 (d, J=4.70 Hz, 1H), 7.64-7.73 (m, 2H), 7.48 (d, J=8.51 Hz, 1H), 7.38-7.45 (m, 3H), 7.25-7.34 (m, 3H), 7.07-7.17 (m, 2H), 4.58 (d, J=12.91 Hz, 1H), 4.35 (d, J=12.91 Hz, 1H).
Following General Procedure D, the title compound was prepared from N-{5-chloro-2-[(pyridin-2-ylmethyl)thio]phenyl}-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, METHANOL-d4) δ 8.42 (dt, J=0.84, 4.77 Hz, 1H), 7.75 (d, J=2.05 Hz, 1H), 7.67 (d, J=7.63 Hz, 1H), 7.41-7.49 (m, 3H), 7.31-7.39 (m, 2H), 7.22-7.29 (m, 2H), 7.07 (d, J=7.63 Hz, 1H), 6.76 (dd, J=1.91, 8.66 Hz, 1H), 5.07 (s, 2H).
Following General Procedure D, the title compound was prepared from N-{5-chloro-2-[(pyridin-2-ylmethyl)thio]phenyl}-1-benzofuran-2-sulfonamide
1H NMR (600 MHz, METHANOL-d4) δ 8.35 (d, J=6.46 Hz, 1H), 7.74 (d, J=2.05 Hz, 1H), 7.66 (d, J=7.92 Hz, 1H), 7.60 (d, J=8.51 Hz, 1H), 7.38 (s, 2H), 7.34 (d, J=10.56 Hz, 3H), 7.25 (s, 2H), 6.77 (dd, J=1.32, 8.36 Hz, 1H), 5.54 (br. s, 2H).
Following General Procedure D, the title compound was prepared from N-{5-chloro-2-[(pyridin-2-ylmethyl)thio]phenyl}-1-benzofuran-2-sulfonamide
1H NMR (600 MHz, METHANOL-d4) δ 8.31 (d, J=6.16 Hz, 1H), 7.66 (d, J=7.92 Hz, 1H), 7.46-7.50 (m, 1H), 7.38-7.42 (m, 1H), 7.30-7.38 (m, 2H), 7.28 (s, 3H), 7.19 (d, J=8.51 Hz, 1H), 7.05 (d, J=7.63 Hz, 1H), 6.82 (d, J=8.22 Hz, 1H), 5.14 (d, J=12.62 Hz, 1H), 4.68 (d, J=12.32 Hz, 1H).
Following General Procedure L, the title compound was prepared from N-{5-chloro-2-[(3-nitrobenzyl)thio]phenyl}-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, CHLOROFORM-d) δ 7.64-7.68 (m, 2H), 7.47-7.51 (m, 1H), 7.40-7.46 (m, 2H), 7.29-7.34 (m, 1H), 7.14 (d, J=8.22 Hz, 1H), 6.97 (t, J=7.78 Hz, 1H), 6.92 (dd, J=2.35, 8.22 Hz, 1H), 6.48-6.52 (m, 1H), 6.35 (dd, J=0.59, 7.63 Hz, 1H), 6.28 (t, J=1.91 Hz, 1H), 3.67 (s, 2H).
Following General Procedure C and K, the title compound was prepared from N-{5-chloro-2-[(3-nitrobenzyl)thio]phenyl}-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, METHANOL-d4) δ 7.69 (d, J=7.92 Hz, 1H), 7.48 (d, J=8.51 Hz, 1H), 7.37-7.43 (m, 3H), 7.30 (td, J=0.88, 7.48 Hz, 1H), 7.20 (d, J=8.51 Hz, 1H), 7.01 (dd, J=2.05, 8.51 Hz, 1H), 6.95 (t, J=7.78 Hz, 1H), 6.70-6.74 (m, 1H), 6.64 (t, J=1.76 Hz, 1H), 6.45 (d, J=7.63 Hz, 1H), 4.40 (d, J=12.62 Hz, 1H), 4.00 (d, J=12.62 Hz, 1H).
Following General Procedure D and K, the title compound was prepared from N-{5-chloro-2-[(3-nitrobenzyl)thio]phenyl}-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, METHANOL-d4) δ 7.80 (d, J=2.05 Hz, 1H), 7.69 (d, J=7.63 Hz, 1H), 7.52 (d, J=0.59 Hz, 1H), 7.40 (d, J=8.51 Hz, 1H), 7.35 (td, J=1.32, 7.70 Hz, 1H), 7.31 (d, J=8.51 Hz, 1H), 7.26-7.30 (m, J=7.92 Hz, 1H), 6.78 (dd, J=2.05, 8.51 Hz, 1H), 6.65 (t, J=7.78 Hz, 1H), 6.49 (dd, J=1.91, 7.78 Hz, 1H), 6.33 (t, J=1.76 Hz, 1H), 6.05 (d, J=7.34 Hz, 1H), 4.66 (s, 2H).
To a solution of N-{5-chloro-2-[(3-methoxybenzyl)thio]phenyl}-1-benzofuran-2-sulfonamide (315 mg, 0.69 mmol) in CH2Cl2 (5 ml) at room temperature was added BBr3 (1M solution in CH2Cl2, 2.1 ml, 2.1 mmol) and the reaction was stirred for 2 h, diluted with EtOAc, washed with brine, dried over Na2SO4, concentrated in vacuo. The crude product was purified by column chromatography on silica gel (25% ethyl acetate in hexane) to give the title compound (196 mg, 64%).
1H NMR (600 MHz, CHLOROFORM-d) δ 8.10 (br. s., 1H), 7.63-7.69 (m, 2H), 7.41-7.51 (m, 3H), 7.32 (td, J=0.88, 7.48 Hz, 1H), 7.12 (d, J=8.22 Hz, 1H), 7.05 (t, J=7.92 Hz, 1H), 6.91 (dd, J=2.35, 8.22 Hz, 1H), 6.66 (ddd, J=0.73, 2.57, 8.14 Hz, 1H), 6.51 (d, J=7.92 Hz, 1H), 6.45-6.48 (m, 1H), 5.07 (br. s., 1H), 3.71 (s, 2H).
Following General Procedure C, the title compound was prepared from N-{5-chloro-2-[(3-hydroxybenzyl)thio]phenyl}-1-benzofuran-2-sulfonamide
1H NMR (600 MHz, CHLOROFORM-d) δ 10.27-11.14 (m, 1H), 7.73 (d, J=2.05 Hz, 1H), 7.67 (d, J=7.92 Hz, 1H), 7.53 (s, 1H), 7.43-7.47 (m, 1H), 7.38-7.42 (m, 1H), 7.28-7.33 (m, 1H), 7.04 (t, J=7.92 Hz, 1H), 6.92 (dd, J=1.47, 8.22 Hz, 1H), 6.79 (d, J=8.22 Hz, 1H), 6.74 (dd, J=2.05, 8.22 Hz, 1H), 6.59 (s, 1H), 6.40 (d, J=7.34 Hz, 1H), 4.33 (d, J=12.32 Hz, 1H), 4.16 (d, J=12.62 Hz, 1H).
Following General Procedure D, the title compound was prepared from N-{5-chloro-2-[(3-hydroxybenzyl)thio]phenyl}-1-benzofuran-2-sulfonamide
1H NMR (600 MHz, CHLOROFORM-d) δ 7.76 (br. s., 1H), 7.65-7.72 (m, 1H), 7.56 (br. s., 1H), 7.44 (br. s., 3H), 7.33 (s, 1H), 7.02 (br. s., 2H), 6.77 (br. s., 1H), 6.58 (br. s., 1H), 6.39-6.47 (m, 1H), 4.28 (br. s., 2H).
Following General Procedure N, the title compound was prepared from N,N′-[dithiobis(5-chloro-2,1-phenylene)]bis(1-benzofuran-2-sulfonamide) Intermediate 8 and was used without further purification.
To a solution of benzofuran-2-sulfonic acid (5-chloro-2-mercapto-phenyl)-amide (332 mg, 0.98 mmol) in CH2Cl2 (10 ml) at −78° C. was added 3,3-dimethyl-1-(trifluoromethyl)-1,2-benziodoxole (CAS #: 887144-97-0, 354 mg, 1.07 mmol) and the reaction was stirred for 1 h, and was concentrated in vacuo. The crude product was purified by column chromatography on silica gel (CH2Cl2) to give the title compound (375 mg, 94%).
1H NMR (600 MHz, CHLOROFORM-d) δ 7.88 (s, 1H), 7.82 (d, J=2.05 Hz, 1H), 7.67 (dd, J=0.59, 7.92 Hz, 1H), 7.49-7.54 (m, 3H), 7.44-7.49 (m, 1H), 7.33 (td, J=1.03, 7.56 Hz, 1H), 7.11 (dd, J=2.20, 8.36 Hz, 1H).
Following General Procedure D using 10 equivalents of mCPBA in refluxing CH2Cl2, the title compound was prepared from N-{5-chloro-2-[(trifluoromethyl)thio]phenyl}-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, acetone-d6) δ 7.90 (d, J=2.05 Hz, 1H), 7.78 (d, J=8.80 Hz, 1H), 7.71 (d, J=7.92 Hz, 1H), 7.51 (d, J=8.22 Hz, 1H), 7.36-7.43 (m, 2H), 7.29 (t, J=7.48 Hz, 1H), 6.92 (d, J=6.46 Hz, 1H).
Following General Procedure D using 10 equivalents of mCPBA in refluxing CH2Cl2, the title compound was prepared from N-{5-chloro-2-[(trifluoromethyl)thio]phenyl}-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, acetone-d6) δ 10.00 (br. s., 1H), 7.89 (d, J=8.22 Hz, 1H), 7.78-7.81 (m, 1H), 7.63-7.66 (m, 1H), 7.50-7.59 (m, 4H), 7.39 (ddd, J=0.88, 7.26, 8.00 Hz, 1H).
Following General Procedure A, B, and K, the title compound was prepared from 2-amino-4-chloro-benzenethiol, 1-bromomethyl-3-nitro-benzene, and 2,4-difluoro-benzenesulfonyl chloride.
1H NMR (600 MHz, CHLOROFORM-d) δ 7.92 (td, J=6.16, 8.51 Hz, 1H), 7.47 (d, J=2.35 Hz, 1H), 7.19 (d, J=8.22 Hz, 1H), 7.01-7.06 (m, 1H), 6.95-7.01 (m, 1H), 6.88-6.94 (m, 2H), 6.57 (dd, J=1.47, 8.80 Hz, 1H), 6.40-6.45 (m, 2H), 3.72 (s, 2H).
Following General Procedure A, B, D, and K, the title compound was prepared from 2-amino-4-chloro-benzenethiol, 1-bromomethyl-3-nitro-benzene, and 2,4-difluoro-benzenesulfonyl chloride.
1H NMR (600 MHz, METHANOL-d4) δ 8.05 (td, J=6.16, 8.51 Hz, 1H), 7.48-7.54 (m, 2H), 7.14-7.25 (m, 2H), 7.09 (dd, J=2.05, 8.51 Hz, 1H), 6.96 (t, J=7.78 Hz, 1H), 6.66-6.71 (m, 1H), 6.54 (t, J=1.91 Hz, 1H), 6.34 (d, J=7.63 Hz, 1H), 4.44 (s, 2H).
Following General Procedure A, B, D, and K, the title compound was prepared from 2-amino-4-chloro-benzenethiol, 1-bromomethyl-3-nitro-benzene, and 4-chloro-2-fluoro-benzenesulfonyl chloride.
1H NMR (600 MHz, METHANOL-d4) δ 7.97 (t, J=8.51 Hz, 1H), 7.54 (d, J=8.51 Hz, 1H), 7.43-7.52 (m, 3H), 7.13-7.17 (m, 1H), 6.98 (t, J=7.78 Hz, 1H), 6.67-6.72 (m, 1H), 6.53 (s, 1H), 6.33 (d, J=7.63 Hz, 1H), 4.42 (s, 2H).
Following General Procedure A, B, C, and K, the title compound was prepared from 2-amino-4-chloro-benzenethiol, 1-bromomethyl-3-nitro-benzene, and 4-chloro-2-fluoro-benzenesulfonyl chloride.
1H NMR (600 MHz, METHANOL-d4) δ 7.85 (t, J=8.07 Hz, 1H), 7.49 (dd, J=1.76, 9.98 Hz, 1H), 7.40 (dd, J=1.91, 8.36 Hz, 1H), 7.33 (d, J=8.22 Hz, 1H), 7.23 (dd, J=1.91, 8.36 Hz, 1H), 7.16 (d, J=2.05 Hz, 1H), 7.04 (t, J=7.78 Hz, 1H), 6.72-6.75 (m, 1H), 6.63 (t, J=1.91 Hz, 1H), 6.50 (d, J=7.34 Hz, 1H), 4.30 (d, J=12.91 Hz, 1H), 4.04 (d, J=12.62 Hz, 1H).
Following General Procedure A, B, and K, the title compound was prepared from 2-amino-4-chloro-benzenethiol, 1-bromomethyl-3-nitro-benzene, and benzenesulfonyl chloride.
1H NMR (600 MHz, METHANOL-d4) δ 7.75-7.79 (m, 2H), 7.57-7.62 (m, 1H), 7.48-7.53 (m, 2H), 7.44 (d, J=2.05 Hz, 1H), 7.14 (d, J=8.22 Hz, 1H), 6.99 (dd, J=2.35, 8.22 Hz, 1H), 6.95 (t, J=7.78 Hz, 1H), 6.56-6.60 (m, 1H), 6.45 (t, J=1.91 Hz, 1H), 6.35 (d, J=7.34 Hz, 1H), 3.58 (s, 2H).
Following General Procedure A, B, and K, the title compound was prepared from 2-amino-4-chloro-benzenethiol, 1-bromomethyl-3-nitro-benzene, and 4-chloro-benzenesulfonyl chloride.
1H NMR (600 MHz, CHLOROFORM-d) δ 7.69-7.72 (m, 2H), 7.54 (d, J=2.35 Hz, 1H), 7.40-7.44 (m, 2H), 7.17 (d, J=8.22 Hz, 1H), 7.03 (t, J=7.78 Hz, 1H), 6.95 (dd, J=2.20, 8.36 Hz, 1H), 6.58 (dd, J=1.76, 7.92 Hz, 1H), 6.34-6.39 (m, 2H), 3.61 (s, 2H).
Following General Procedure A, B, and K, the title compound was prepared from 2-amino-4-chloro-benzenethiol, 1-bromomethyl-3-nitro-benzene, and 3-chloro-benzenesulfonyl chloride.
1H NMR (600 MHz, CHLOROFORM-d) δ 7.80 (t, J=1.91 Hz, 1H), 7.63-7.66 (m, 1H), 7.56 (d, J=2.35 Hz, 1H), 7.52 (ddd, J=0.88, 1.98, 8.00 Hz, 1H), 7.39 (t, J=7.92 Hz, 1H), 7.16 (d, J=8.51 Hz, 1H), 7.02 (t, J=7.78 Hz, 1H), 6.96 (dd, J=2.05, 8.22 Hz, 1H), 6.55-6.59 (m, 1H), 6.35 (d, J=7.63 Hz, 1H), 6.32 (t, J=1.91 Hz, 1H), 3.56 (s, 2H).
Following General Procedure A, B, D, and K, the title compound was prepared from 2-amino-4-chloro-benzenethiol, 1-bromomethyl-3-nitro-benzene, and benzenesulfonyl chloride.
1H NMR (600 MHz, METHANOL-d4) δ 7.90-7.93 (m, 2H), 7.63-7.68 (m, 1H), 7.56-7.62 (m, 3H), 7.42 (d, J=8.51 Hz, 1H), 7.11 (dd, J=2.05, 8.51 Hz, 1H), 6.93 (t, J=7.78 Hz, 1H), 6.66 (ddd, J=0.73, 2.27, 8.14 Hz, 1H), 6.39 (t, J=1.91 Hz, 1H), 6.16 (d, J=7.34 Hz, 1H), 4.18 (s, 2H).
Following General Procedure A, B, C, and K, the title compound was prepared from 2-amino-4-chloro-benzenethiol, 1-bromomethyl-3-nitro-benzene, and benzenesulfonyl chloride.
1H NMR (600 MHz, METHANOL-d4) δ 7.82-7.86 (m, 2H), 7.64-7.69 (m, 1H), 7.56-7.62 (m, 2H), 7.27-7.31 (m, 1H), 7.22-7.27 (m, 1H), 7.08 (d, J=2.05 Hz, 1H), 6.99 (t, J=7.78 Hz, 1H), 6.67 (ddd, J=0.88, 2.35, 8.22 Hz, 1H), 6.50 (t, J=1.91 Hz, 1H), 6.36 (d, J=7.63 Hz, 1H), 4.12 (d, J=12.62 Hz, 1H), 3.95 (d, J=12.91 Hz, 1H).
Following General Procedure A, B, D, and K, the title compound was prepared from 2-amino-4-chloro-benzenethiol, 1-bromomethyl-3-nitro-benzene, and 4-chloro-benzenesulfonyl chloride.
1H NMR (600 MHz, METHANOL-d4) δ 7.85-7.88 (m, 2H), 7.58-7.62 (m, 2H), 7.55 (d, J=2.05 Hz, 1H), 7.49 (d, J=8.51 Hz, 1H), 7.15 (dd, J=1.91, 8.66 Hz, 1H), 6.95 (t, J=7.78 Hz, 1H), 6.68 (ddd, J=0.88, 2.20, 8.07 Hz, 1H), 6.45 (t, J=1.91 Hz, 1H), 6.21 (d, J=7.63 Hz, 1H), 4.28 (s, 2H).
Following General Procedure A, B, C, and K, the title compound was prepared from 2-amino-4-chloro-benzenethiol, 1-bromomethyl-3-nitro-benzene, and 4-chloro-benzenesulfonyl chloride.
1H NMR (600 MHz, METHANOL-d4) δ 7.79 (d, J=8.51 Hz, 2H), 7.59 (d, J=8.80 Hz, 2H), 7.32 (d, J=8.51 Hz, 1H), 7.24-7.29 (m, 1H), 7.06 (d, J=1.76 Hz, 1H), 6.99 (t, J=7.78 Hz, 1H), 6.65-6.69 (m, 1H), 6.52 (s, 1H), 6.38 (d, J=7.34 Hz, 1H), 4.16 (d, J=12.91 Hz, 1H), 3.97 (d, J=12.91 Hz, 1H).
Following General Procedure A, B, D, and K, the title compound was prepared from 2-amino-4-chloro-benzenethiol, 1-bromomethyl-3-nitro-benzene, and 3-chloro-benzenesulfonyl chloride.
1H NMR (600 MHz, METHANOL-d4) δ 8.00 (t, J=1.91 Hz, 1H), 7.89-7.93 (m, 1H), 7.42-7.51 (m, 3H), 7.38 (d, J=8.51 Hz, 1H), 6.89 (t, J=7.78 Hz, 1H), 6.66 (dd, J=1.76, 8.51 Hz, 1H), 6.59 (d, J=8.22 Hz, 1H), 6.55 (s, 1H), 6.37 (d, J=7.63 Hz, 1H), 4.69 (s, 2H).
Following General Procedure A, B, C, and K, the title compound was prepared from 2-amino-4-chloro-benzenethiol, 1-bromomethyl-3-nitro-benzene, and 3-chloro-benzenesulfonyl chloride.
1H NMR (600 MHz, METHANOL-d4) δ 7.85 (s, 1H), 7.77 (d, J=7.63 Hz, 1H), 7.51-7.55 (m, 1H), 7.47 (t, J=7.92 Hz, 1H), 7.22 (d, J=8.22 Hz, 1H), 7.19 (d, J=1.76 Hz, 1H), 6.93-7.00 (m, 2H), 6.65 (dd, J=2.20, 8.07 Hz, 1H), 6.58 (s, 1H), 6.43 (d, J=7.63 Hz, 1H), 4.35 (d, J=12.91 Hz, 1H), 3.82 (d, J=12.91 Hz, 1H).
Following General Procedure H, B, the title compound was prepared from 2-amino-4-chloro-benzenethiol, N-isopropyl-acrylamide, and 4-chloro-3-trifluoromethyl-benzenesulfonyl chloride.
1H NMR (300 MHz, CD3OD) δ 8.19 (d, J=1.47 Hz, 1H), 7.98 (d, J=8.20 Hz, 1H), 7.60 (d, J=8.20 Hz, 1H), 7.23 (d, J=2.05 Hz, 1H), 7.06 (d, J=8.20 Hz, 1H), 6.75 (dd, J=2.20, 8.35 Hz, 1H), 3.85-4.03 (m, 1H), 3.00 (t, J=7.33 Hz, 2H), 2.39 (t, J=7.47 Hz, 2H), 1.12 (d, 6H).
Following General Procedure H, B, the title compound was prepared from 2-amino-4-chloro-benzenethiol, N,N-dimethyl-acrylamide, and 4-chloro-3-trifluoromethyl-benzenesulfonyl chloride.
1H NMR (300 MHz, CD3OD) δ 8.11 (s, 1H), 7.90 (d, J=7.91 Hz, 1H), 7.71-7.79 (m, 1H), 7.49 (d, J=2.34 Hz, 1H), 7.39 (d, J=8.50 Hz, 1H), 7.21 (none, J=2.34, 8.50 Hz, 1H), 2.96 (d, J=7.62 Hz, 6H), 2.90 (t, J=7.03 Hz, 2H), 2.51 (t, J=7.03 Hz, 2H).
Following General Procedure C, the title compound was prepared from 3-{[4-chloro-2-({[4-chloro-3-(trifluoromethyl)phenyl]sulfonyl}amino)phenyl]thio}-N,N-dimethylpropanamide
1H NMR (300 MHz, CD3OD) δ 8.17 (d, J=1.76 Hz, 1H), 8.01 (d, J=8.20 Hz, 1H), 7.67 (d, J=8.50 Hz, 1H), 7.39 (d, J=8.20 Hz, 1H), 7.24 (d, J=1.76 Hz, 1H), 6.88 (dd, J=1.90, 8.35 Hz, 1H), 3.91 (quin, J=6.59 Hz, 1H), 3.37-3.52 (m, 1H), 3.09-3.25 (m, 1H), 2.58 (ddd, J=5.71, 9.89, 15.16 Hz, 1H), 2.26 (ddd, J=5.86, 9.74, 15.16 Hz, 1H), 1.10 (dd, 4H).
Following General Procedure H, B, the title compound was prepared from 2-amino-4-chloro-benzenethiol, acrylamide, and 4-chloro-3-trifluoromethyl-benzenesulfonyl chloride.
1H NMR (600 MHz, CD3OD) δ 8.16 (d, J=1.76 Hz, 1H), 8.00 (dd, J=2.05, 8.22 Hz, 1H), 7.75 (d, J=8.51 Hz, 1H), 7.57 (d, J=8.51 Hz, 1H), 7.32 (s, 1H), 7.21 (d, J=7.92 Hz, 1H), 3.26 (br. s., 1H), 3.18 (br. s., 1H), 2.99-3.07 (m, 3H), 2.95 (s, 3H), 2.88 (dt, J=7.37, 16.95 Hz, 1H), 2.62-2.77 (m, 1H).
Following General Procedure B, C, the title compound was prepared from 5-chloro-2-(methylsulfinyl)aniline and benzenesulfonyl chloride.
1H NMR (300 MHz, acetone-d6) δ 10.64 (br. s., 1H), 7.93 (d, J=7.03 Hz, 2H), 7.59-7.79 (m, 3H), 7.55 (d, J=1.76 Hz, 1H), 7.45 (d, J=8.50 Hz, 1H), 7.26 (dd, J=1.90, 8.35 Hz, 1H), 2.74 (s, 3H).
Following General Procedure B, the title compound was prepared from 5-chloro-2-(methylsulfinyl)aniline and thiophene-2-sulfonyl chloride.
1H NMR (300 MHz, CD3OD) δ 7.75 (dd, J=1.17, 4.98 Hz, 1H), 7.50 (dd, J=1.32, 3.66 Hz, 1H), 7.40 (d, J=2.05 Hz, 1H), 7.26-7.34 (m, 1H), 7.15-7.24 (m, 1H), 7.08 (dd, J=3.81, 4.98 Hz, 1H), 2.23 (s, 3H).
Following General Procedure C, the title compound was prepared from N-[5-chloro-2-(methylthio)phenyl]thiophene-2-sulfonamide
1H NMR (600 MHz, CD3OD) δ 7.81 (d, J=4.40 Hz, 1H), 7.75 (d, J=8.51 Hz, 1H), 7.51-7.57 (m, 1H), 7.43 (d, J=7.92 Hz, 1H), 7.15 (dd, J=4.84, 8.66 Hz, 2H), 2.79 (s, 3H).
Following General Procedure D, the title compound (136 mg, 82%) was prepared from benzofuran-2-sulfonic acid [2-(3-nitro-benzylsulfanyl)-phenyl]-amide.
1H NMR (600 MHz, acetone-d6) δ 9.57 (br. s., 1H), 8.17 (dt, J=2.53, 6.38 Hz, 1H), 7.93 (d, J=0.88 Hz, 1H), 7.74-7.83 (m, 3H), 7.69 (td, J=1.47, 7.92 Hz, 1H), 7.63 (dd, J=1.47, 7.92 Hz, 1H), 7.52-7.59 (m, 3H), 7.47 (ddd, J=1.17, 7.41, 8.44 Hz, 1H), 7.30-7.38 (m, 1H), 7.23 (t, J=7.63 Hz, 1H), 4.85 (s, 2H).
Following General Procedure C, the title compound (79 mg, 73%) was prepared from N-(5-chloro-2-{[2-(3,5-dimethyl-1H-pyrazol-4-yl)ethyl]thio}phenyl)-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, CD3OD) δ 7.61 (d, J=7.92 Hz, 1H), 7.46 (d, J=2.05 Hz, 1H), 7.44 (d, J=8.22 Hz, 1H), 7.28-7.32 (m, 1H), 7.21-7.26 (m, 1H), 7.19 (dd, J=0.73, 8.36 Hz, 1H), 7.15 (d, J=0.88 Hz, 1H), 6.92 (dd, J=1.91, 8.36 Hz, 1H), 3.52-3.62 (m, 1H), 2.80-2.91 (m, 2H), 2.56-2.65 (m, 1H), 2.11 (s, 6H).
Following General Procedure D, followed by treatment of the crude product with NaBH4 in MeOH, the title compound was prepared from 4-Chloro-N-[5-chloro-2-(3-oxo-cyclopentylsulfanyl)-phenyl]-3-trifluoromethyl-benzenesulfonamide (Intermediate 35).
1H NMR (600 MHz, CD3OD) δ 8.34 (s, 1H), 8.18 (dd, J=1.91, 8.36 Hz, 1H), 7.70-7.79 (m, 2H), 7.65 (s, 1H), 7.00 (br. s., 1H), 4.12-4.18 (m, 2H), 1.98-2.10 (m, 2H), 1.72-1.84 (m, 2H), 1.63-1.71 (m, 2H).
Following General Procedure B, the title compound (197 mg, 61%) was prepared from 5-Chloro-2-methylsulfanyl-phenylamine (150 mg, 0.87 mmol) and 4-Methyl-3-nitro-benzenesulfonyl chloride (235 mg, 0.87 mmol).
1H NMR (600 MHz, CD3OD) δ 8.29 (d, J=1.76 Hz, 1H), 7.85 (dd, J=1.91, 8.07 Hz, 1H), 7.57 (d, J=8.22 Hz, 1H), 7.39 (d, J=2.05 Hz, 1H), 7.17-7.25 (m, 2H), 2.60 (s, 3H), 2.20 (s, 3H).
Following General Procedure C, the title compound was prepared from N-[5-chloro-2-(methylthio)phenyl]-4-methyl-3-nitrobenzenesulfonamide
1H NMR (600 MHz, CDCL3) δ 10.88 (br. s., 1H), 8.53 (d, J=2.05 Hz, 1H), 8.05 (dd, J=1.91, 8.07 Hz, 1H), 7.64 (d, J=1.76 Hz, 1H), 7.54 (d, J=8.22 Hz, 1H), 7.04-7.16 (m, 2H), 2.87 (s, 3H), 2.67 (s, 3H).
Following General Procedure D, the title compound was prepared from N-[5-chloro-2-(methylthio)phenyl]-4-methyl-3-nitrobenzenesulfonamide
1H NMR (600 MHz, CDCL3) δ 9.36 (br. s., 1H), 8.52 (d, J=2.05 Hz, 1H), 8.05 (dd, J=2.05, 8.22 Hz, 1H), 7.79 (d, J=8.51 Hz, 1H), 7.67 (d, J=2.05 Hz, 1H), 7.58 (d, J=7.92 Hz, 1H), 7.23 (dd, J=1.76, 8.51 Hz, 1H), 3.04 (s, 3H), 2.68 (s, 3H).
Following General Procedure B, the title compound (150 mg, 68%) was prepared from 5-Chloro-2-methylsulfanyl-phenylamine (110 mg, 0.64 mmol) and 4-Chloro-benzenesulfonyl chloride (134 mg, 0.64 mmol).
1H NMR (600 MHz, CD3OD) δ 7.72 (d, J=9.10 Hz, 2H), 7.51 (d, J=8.80 Hz, 2H), 7.37 (d, J=2.05 Hz, 1H), 7.25 (d, J=8.51 Hz, 1H), 7.19 (dd, J=2.05, 8.22 Hz, 1H), 2.20 (s, 3H).
Following General Procedure C, the title compound was prepared from 4-chloro-N-[5-chloro-2-(methylthio)phenyl]benzenesulfonamide
1H NMR (600 MHz, CDCL3) δ 10.67 (br. s., 1H), 7.89 (d, J=8.80 Hz, 2H), 7.66 (d, J=1.76 Hz, 1H), 7.50 (d, J=8.80 Hz, 2H), 6.91-7.16 (m, 2H), 2.80 (none, 3H).
Following General Procedure D, the title compound was prepared from 4-chloro-N-[5-chloro-2-(methylthio)phenyl]benzenesulfonamide
1H NMR (600 MHz, CDCL3) δ 7.89 (d, J=8.80 Hz, 2H), 7.78 (d, J=8.51 Hz, 1H), 7.68 (d, J=1.76 Hz, 1H), 7.53 (d, J=8.80 Hz, 2H), 7.20 (dd, J=2.05, 8.51 Hz, 1H), 2.96 (s, 3H).
Following General Procedure B, the title compound (205 mg, 59%) was prepared from 5-chloro-2-methylsulfanyl-phenylamine (165 mg, 0.95 mmol) and 4-chloro-3-methyl-benzenesulfonyl chloride (215 mg, 0.95 mmol).
1H NMR (600 MHz, CDCL3) δ 7.71 (d, 1H), 7.65 (s, 1H), 7.62 (d, J=2.05 Hz, 1H), 7.57 (dd, J=2.05, 8.22 Hz, 1H), 7.41 (d, J=8.22 Hz, 1H), 7.32 (d, J=8.51 Hz, 1H), 7.04 (dd, J=2.20, 8.36 Hz, 1H), 2.39 (s, 3H), 2.19 (s, 3H).
Following General Procedure C, the title compound was prepared from 4-chloro-N-[5-chloro-2-(methylthio)phenyl]-3-methylbenzenesulfonamide
1H NMR (600 MHz, CDCL3) δ 10.62 (s, 1H), 7.82 (d, J=2.05 Hz, 1H), 7.71 (dd, J=1.91, 8.36 Hz, 1H), 7.63 (d, J=2.05 Hz, 1H), 7.48 (d, J=8.51 Hz, 1H), 7.02-7.15 (m, 2H), 2.81 (s, 3H), 2.43 (s, 3H).
Following General Procedure D, the title compound was prepared from 4-chloro-N-[5-chloro-2-(methylthio)phenyl]-3-methylbenzenesulfonamide
1H NMR (600 MHz, CDCL3) δ 9.24 (br. s., 1H), 7.83 (d, J=2.05 Hz, 1H), 7.78 (d, J=8.51 Hz, 1H), 7.71 (dd, J=2.05, 8.51 Hz, 1H), 7.67 (d, J=1.76 Hz, 1H), 7.50 (d, J=8.22 Hz, 1H), 7.19 (dd, J=1.76, 8.51 Hz, 1H), 2.97 (s, 3H), 2.44 (s, 3H).
Following General Procedure B, the title compound (176 mg, 43%) was prepared from 5-chloro-2-methylsulfanyl-phenylamine (167 mg, 0.95 mmol) and 4-nitro-3-trifluoromethyl-benzenesulfonyl chloride (278 mg, 0.95 mmol).
1H NMR (300 MHz, CD3OD) δ 8.04-8.22 (m, 3H), 7.42 (d, J=2.05 Hz, 1H), 7.16-7.32 (m, 2H), 2.20 (s, 3H).
Following General Procedure D, the title compound was prepared from N-[5-chloro-2-(methylthio)phenyl]-3-nitro-4-(trifluoromethyl)benzenesulfonamide 1H NMR (600 MHz, acetone-d6) δ 9.64 (br. s., 1H), 8.49-8.65 (m, 2H), 8.33 (d, J=8.51 Hz, 1H), 7.89 (d, J=8.51 Hz, 1H), 7.70 (d, J=1.76 Hz, 1H), 7.39 (d, J=8.22 Hz, 1H), 3.24 (s, 3H).
Following General Procedure D, the title compound was prepared from N-[5-chloro-2-(methylthio)phenyl]-3-nitro-4-(trifluoromethyl)benzenesulfonamide
1H NMR (600 MHz, acetone-d6) δ 8.25-8.35 (m, 2H), 8.11 (d, J=8.22 Hz, 1H), 7.39-7.48 (m, 2H), 6.75 (dd, J=2.05, 8.22 Hz, 1H), 2.70 (s, 3H).
Following General Procedure B, the title compound (358 mg, 94%) was prepared from 5-chloro-2-methylsulfanyl-phenylamine (189 mg, 1.09 mmol) and 2,4-Difluoro-benzenesulfonyl chloride (231 mg, 1.09 mmol).
1H NMR (300 MHz, CD3OD) δ 7.82 (td, J=6.15, 8.50 Hz, 1H), 7.34 (d, J=2.05 Hz, 1H), 7.16-7.30 (m, 3H), 7.00-7.16 (m, 1H), 2.27 (s, 3H).
Following General Procedure D, the title compound was prepared from N-[5-chloro-2-(methylthio)phenyl]-2,4-difluorobenzenesulfonamide
1H NMR (300 MHz, acetone-d6) δ 9.81 (br. s., 1H), 8.15-8.32 (m, 1H), 7.91 (d, J=8.50 Hz, 1H), 7.63 (d, J=1.76 Hz, 1H), 7.24-7.46 (m, 3H), 3.27 (s, 3H).
Following General Procedure D, the title compound was prepared from N-[5-chloro-2-(methylthio)phenyl]-2,4-difluorobenzenesulfonamide
1H NMR (600 MHz, acetone-d6) δ 10.97 (br. s., 1H), 8.10 (td, J=6.16, 8.51 Hz, 1H), 7.51 (d, J=8.22 Hz, 1H), 7.46 (d, J=2.05 Hz, 1H), 7.30-7.38 (m, 1H), 7.24-7.31 (m, 2H), 2.90 (s, 3H).
Following General Procedure B, the title compound (212 mg, 48%) was prepared from 5-chloro-2-methylsulfanyl-phenylamine (189 mg, 1.09 mmol) and 5-methyl-furan-2-sulfonyl chloride (250 mg, 1.38 mmol).
1H NMR (300 MHz, acetone-d6) δ 8.53 (br. s., 1H), 7.37-7.49 (m, 2H), 7.25 (dd, J=2.34, 8.50 Hz, 1H), 6.96 (d, J=3.22 Hz, 1H), 6.24 (d, J=2.64 Hz, 1H), 2.38 (s, 3H), 2.34 (s, 3H).
Following General Procedure C, the title compound was prepared from N-[5-chloro-2-(methylthio)phenyl]-5-methylfuran-2-sulfonamide
1H NMR (600 MHz, acetone-d6) δ 10.74 (br. s., 1H), 7.55 (d, J=2.05 Hz, 1H), 7.51 (d, J=8.22 Hz, 1H), 7.30 (dd, J=1.91, 8.36 Hz, 1H), 7.18 (d, J=3.23 Hz, 1H), 6.24-6.35 (m, 1H), 2.90 (s, 3H), 2.34 (s, 3H).
Following General Procedure D, the title compound was prepared from N-[5-chloro-2-(methylthio)phenyl]-5-methylfuran-2-sulfonamide
1H NMR (600 MHz, acetone-d6) δ 9.54 (br. s., 1H), 7.90 (d, J=8.51 Hz, 1H), 7.73 (d, J=2.05 Hz, 1H), 7.39 (dd, J=1.76, 8.51 Hz, 1H), 7.31 (d, J=3.52 Hz, 1H), 6.32 (d, J=3.23 Hz, 1H), 3.24 (s, 3H), 2.33 (s, 3H).
Following General Procedure B, the title compound (215 mg, 47%) was prepared from 5-chloro-2-methylsulfanyl-phenylamine (260 mg, 1.50 mmol) and furan-2-sulfonyl chloride (250 mg, 1.50 mmol).
1H NMR (300 MHz, acetone-d6) δ 8.67 (br. s., 1H), 7.84 (s, 1H), 7.32-7.46 (m, 2H), 7.26 (dd, J=2.20, 8.35 Hz, 1H), 7.07 (d, J=3.52 Hz, 1H), 6.63 (dd, J=1.76, 3.52 Hz, 1H), 2.36 (s, 3H).
Following General Procedure C, the title compound was prepared from N-[5-chloro-2-(methylthio)phenyl]furan-2-sulfonamide
1H NMR (600 MHz, acetone-d6) δ 10.85 (br. s., 1H), 7.89 (s, 1H), 7.49-7.59 (m, 2H), 7.28-7.36 (m, 2H), 6.68 (dd, J=1.76, 3.52 Hz, 1H), 2.88 (s, 3H).
Following General Procedure D, the title compound was prepared from N-[5-chloro-2-(methylthio)phenyl]furan-2-sulfonamide
1H NMR (600 MHz, acetone-d6) δ 9.62 (br. s., 1H), 7.90 (d, J=8.51 Hz, 2H), 7.74 (d, J=2.05 Hz, 1H), 7.27-7.48 (m, 2H), 6.70 (dd, J=1.76, 3.52 Hz, 1H), 3.22 (s, 3H).
Following General Procedure B, the title compound (380 mg, 66%) was prepared from 5-chloro-2-methylsulfanyl-phenylamine (273 mg, 1.57 mmol) and 4-chloro-2-fluoro-benzenesulfonyl chloride (360 mg, 1.57 mmol).
1H NMR (300 MHz, acetone-d6) δ 8.77 (br. s., 1H), 7.84 (t, J=8.06 Hz, 1H), 7.53 (dd, J=1.90, 9.82 Hz, 1H), 7.35-7.48 (m, 3H), 7.25 (dd, J=2.20, 8.35 Hz, 1H), 2.34 (s, 3H).
Following General Procedure C, the title compound was prepared from 4-chloro-N-[5-chloro-2-(methylthio)phenyl]-2-fluorobenzenesulfonamide
1H NMR (300 MHz, acetone-d6) δ 10.95 (br. s., 1H), 8.03 (t, J=8.20 Hz, 1H), 7.39-7.61 (m, 4H), 7.28 (dd, J=1.90, 8.35 Hz, 1H), 2.93 (s, 3H).
Following General Procedure D, the title compound was prepared from 4-chloro-N-[5-chloro-2-(methylthio)phenyl]-2-fluorobenzenesulfonamide
1H NMR (300 MHz, acetone-d6) δ 9.84 (br. s., 1H), 8.12 (t, J=8.20 Hz, 1H), 7.90 (d, J=8.50 Hz, 1H), 7.46-7.69 (m, 3H), 7.33 (dd, J=1.47, 8.50 Hz, 1H), 3.27 (s, 3H).
Following General Procedure B, the title compound (386 mg, 62%) was prepared from 5-chloro-2-methylsulfanyl-phenylamine (297 mg, 1.71 mmol) and 3-chloro-2-fluoro-benzenesulfonyl chloride (392 mg, 1.71 mmol).
1H NMR (300 MHz, acetone-d6) δ 8.87 (br. s., 1H), 7.70-7.93 (m, 2H), 7.32-7.47 (m, 3H), 7.20-7.31 (m, 1H), 2.32 (s, 3H).
Following General Procedure D, the title compound was prepared from 3-chloro-N-[5-chloro-2-(methylthio)phenyl]-2-fluorobenzenesulfonamide
1H NMR (300 MHz, acetone-d6) δ 7.89-8.04 (m, 1H), 7.69 (d, J=8.50 Hz, 1H), 7.55-7.65 (m, 2H), 7.23-7.37 (m, 1H), 6.72 (dd, J=1.90, 8.64 Hz, 1H), 3.22 (s, 3H).
Following General Procedure C, the title compound was prepared from 3-chloro-N-[5-chloro-2-(methylthio)phenyl]-2-fluorobenzenesulfonamide
1H NMR (300 MHz, acetone-d6) δ 7.94-8.04 (m, 1H), 7.83-7.93 (m, 1H), 7.42-7.59 (m, 3H), 7.29 (dd, J=1.90, 8.35 Hz, 1H), 2.93 (s, 3H).
Following General Procedure A, B, the title compound was prepared from 2-Amino-4-chloro-benzenethiol, 2-chloromethyl-1H-imidazole and 4-chloro-3-trifluoromethyl-benzenesulfonyl chloride.
1H NMR (300 MHz, CD3OD) δ 8.06 (d, J=1.76 Hz, 1H), 7.89 (dd, J=2.05, 8.50 Hz, 1H), 7.63-7.78 (m, 2H), 7.45 (d, J=2.05 Hz, 1H), 7.30 (d, J=8.50 Hz, 1H), 7.14 (dd, J=2.34, 8.50 Hz, 1H), 6.73 (s, 1H), 3.83 (s, 2H).
Following General Procedure C, the title compound was prepared from 4-chloro-N-{5-chloro-2-[(1H-imidazol-2-ylmethyl)thio]phenyl}-3-(trifluoromethyl)benzenesulfonamide.
1H NMR (600 MHz, CD3OD) δ 8.18 (d, 1H), 8.03 (dd, J=1.91, 8.36 Hz, 1H), 7.72 (d, J=8.22 Hz, 1H), 7.41 (s, 2H), 7.20 (d, J=1.76 Hz, 1H), 7.06 (d, J=8.51 Hz, 1H), 6.84 (dd, J=1.91, 8.36 Hz, 1H), 4.76 (d, J=8.22 Hz, 2H).
1H NMR (600 MHz, acetone-d6) δ 8.33 (d, J=1.76 Hz, 1H), 8.18 (dd, J=1.76, 8.22 Hz, 1H), 7.70 (d, J=8.22 Hz, 1H), 7.66 (d, J=8.51 Hz, 1H), 7.58 (d, J=2.05 Hz, 1H), 7.10 (s, 2H), 6.72 (dd, J=1.91, 8.36 Hz, 1H), 4.86 (s, 2H).
Following General Procedure A, B, the title compound was prepared from 2-Amino-4-chloro-benzenethiol, 4-chloromethyl-1H-imidazole hydrogen chloride and 4-chloro-3-trifluoromethyl-benzenesulfonyl chloride.
1H NMR (600 MHz, acetone-d6) δ 8.07 (d, J=2.05 Hz, 1H), 7.89-7.97 (m, 2H), 7.77 (d, J=8.51 Hz, 1H), 7.61 (d, J=2.35 Hz, 1H), 7.56 (d, J=8.22 Hz, 1H), 7.16 (dd, J=2.35, 8.22 Hz, 1H), 7.02 (s, 1H), 3.87 (s, 2H).
Following General Procedure C, the title compound was prepared from 4-chloro-N-{5-chloro-2-[(1H-imidazol-4-ylmethyl)thio]phenyl}-3-(trifluoromethyl)benzenesulfonamide.
1H NMR (600 MHz, acetone-d6) δ 8.26 (br. s., 1H), 8.17 (s, 1H), 8.08 (dd, J=1.76, 8.51 Hz, 1H), 7.82 (d, J=8.51 Hz, 1H), 7.47 (br. s., 1H), 7.38 (d, J=8.51 Hz, 1H), 7.30 (s, 1H), 7.09 (d, J=7.92 Hz, 1H), 4.48 (dd, J=2.35, 13.79 Hz, 1H), 4.20 (d, J=14.09 Hz, 1H).
Following General Procedure A, B, the title compound was prepared from 2-Amino-4-chloro-benzenethiol, 2-chloromethyl-1H-imidazole and 1-benzofuran-2-sulfonyl chloride.
1H NMR (600 MHz, acetone-d6) δ 7.74 (d, J=7.92 Hz, 1H), 7.64 (d, J=2.35 Hz, 1H), 7.61 (d, J=8.51 Hz, 1H), 7.53 (d, J=8.51 Hz, 1H), 7.46 (td, J=1.17, 7.78 Hz, 1H), 7.41 (s, 1H), 7.33 (t, J=7.48 Hz, 1H), 7.17 (s, 2H), 7.09 (dd, J=2.35, 8.22 Hz, 1H), 4.10 (s, 2H).
Following General Procedure C, the title compound was prepared from N-{5-chloro-2-[(1H-imidazol-2-ylmethyl)thio]phenyl}-1-benzofuran-2-sulfonamide
1H NMR (300 MHz, DMSO-d6) δ 7.68 (d, J=7.62 Hz, 1H), 7.51-7.61 (m, 3H), 7.41 (d, J=2.05 Hz, 1H), 7.32-7.40 (m, 1H), 7.21-7.32 (m, 1H), 7.17 (s, 1H), 6.92 (d, J=8.50 Hz, 1H), 6.74 (dd, J=1.90, 8.06 Hz, 1H), 4.89 (d, J=14.07 Hz, 1H), 4.56 (d, J=13.77 Hz, 1H).
Following General Procedure D, the title compound was prepared from N-{5-chloro-2-[(1H-imidazol-2-ylmethyl)thio]phenyl}-1-benzofuran-2-sulfonamide
1H NMR (300 MHz, acetone-d6) δ 7.69-7.79 (m, 3H), 7.66 (s, 2H), 7.46-7.54 (m, 1H), 7.41 (s, 2H), 7.24-7.34 (m, 1H), 6.88 (dd, J=1.90, 8.64 Hz, 1H), 5.62 (s, 2H).
Following General Procedure C, the title compound was prepared from N-{5-chloro-2-[(1H-imidazol-4-ylmethyl)thio]phenyl}-1-benzofuran-2-sulfonamide.
1H NMR (300 MHz, acetone-d6) δ 8.34 (s, 1H), 7.75 (d, J=7.91 Hz, 1H), 7.60 (d, J=2.05 Hz, 1H), 7.47-7.56 (m, 2H), 7.43 (t, J=7.33 Hz, 1H), 7.24-7.38 (m, 3H), 7.03 (d, J=10.55 Hz, 1H), 4.58 (d, J=14.36 Hz, 1H), 4.24 (d, J=13.77 Hz, 1H)
Following General Procedure D, the title compound was prepared from N-{5-chloro-2-[(1H-imidazol-4-ylmethyl)thio]phenyl}-1-benzofuran-2-sulfonamide
1H NMR (300 MHz, acetone-d6) δ 8.20 (br. s., 1H), 7.66-7.81 (m, 3H), 7.35-7.53 (m, 4H), 7.23-7.35 (m, 1H), 6.95 (dd, J=2.05, 8.50 Hz, 1H), 4.87 (s, 2H).
Following General Procedure A, B, the title compound was prepared from 2-Amino-4-chloro-benzenethiol, (2-chloro-ethyl)-urea and 1-benzofuran-2-sulfonyl chloride.
1H NMR (300 MHz, acetone-d6) δ 7.77 (d, J=7.91 Hz, 1H), 7.45-7.66 (m, 5H), 7.31-7.42 (m, 1H), 7.22 (dd, J=2.05, 8.50 Hz, 1H), 6.02 (br. s., 1H), 5.40 (br. s., 2H), 3.14 (q, J=6.15 Hz, 2H), 2.84 (t, J=6.45 Hz, 2H).
Following General Procedure C, the title compound was prepared from N-[2-({2-[(aminocarbonyl)amino]ethyl}thio)-5-chlorophenyl]-1-benzofuran-2-sulfonamide
1H NMR (600 MHz, CD3OD) δ 7.68 (d, J=7.92 Hz, 1H), 7.54 (dd, J=5.28, 8.22 Hz, 2H), 7.42 (t, J=7.92 Hz, 1H), 7.37 (s, 1H), 7.27-7.34 (m, 2H), 7.10 (d, J=6.75 Hz, 1H), 3.58-3.67 (m, 1H), 3.44-3.53 (m, 1H), 3.36-3.43 (m, 1H), 2.98-3.09 (m, 1H).
Following General Procedure D, the title compound was prepared from N-[2-({2-[(aminocarbonyl)amino]ethyl}thio)-5-chlorophenyl]-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, CD3OD) δ 7.85 (d, J=8.51 Hz, 1H), 7.80 (d, J=2.05 Hz, 1H), 7.77 (d, J=7.92 Hz, 1H), 7.72 (s, 1H), 7.61 (d, J=8.51 Hz, 1H), 7.52 (t, J=7.34 Hz, 1H), 7.31-7.40 (m, 2H), 3.36-3.47 (m, 4H).
Following General Procedure A, B, the title compound was prepared from 2-Amino-4-chloro-benzenethiol, (3-chloro-propyl)-dimethyl-amine hydrochloride and 1-benzofuran-2-sulfonyl chloride.
1H NMR (600 MHz, acetone-d6) δ 7.62-7.72 (m, 2H), 7.49 (d, J=8.22 Hz, 1H), 7.31-7.38 (m, 2H), 7.25 (t, J=7.48 Hz, 1H), 7.18 (s, 1H), 6.69 (dd, J=2.05, 8.22 Hz, 1H), 3.44 (t, J=5.58 Hz, 2H), 3.30 (s, 3H), 3.12 (s, 3H), 2.97 (t, J=6.31 Hz, 2H), 1.96-2.10 (m, 2H)
Following General Procedure C, the title compound was prepared from N-(5-chloro-2-{[3-(dimethylamino)propyl]thio}phenyl)-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, acetone-d6) δ 7.67 (d, J=7.92 Hz, 1H), 7.60 (d, J=1.76 Hz, 1H), 7.50 (d, J=8.22 Hz, 1H), 7.41 (d, J=8.22 Hz, 1H), 7.33 (t, J=7.92 Hz, 1H), 7.20-7.28 (m, 2H), 6.83 (dd, J=1.76, 8.22 Hz, 1H), 3.69 (ddd, J=4.99, 8.58, 13.43 Hz, 1H), 3.61 (ddd, J=4.11, 10.71, 14.23 Hz, 1H), 3.48 (ddd, J=5.58, 5.72, 13.35 Hz, 1H), 3.07-3.21 (m, 7H), 2.30-2.42 (m, 1H), 2.16-2.30 (m, 1H).
Following General Procedure D, the title compound was prepared from N-(5-chloro-2-{[3-(dimethylamino)propyl]thio}phenyl)-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, acetone-d6) δ 7.63 (d, J=7.63 Hz, 1H), 7.53 (d, J=1.76 Hz, 1H), 7.48 (d, J=8.22 Hz, 1H), 7.43 (d, J=8.22 Hz, 1H), 7.30 (t, J=7.34 Hz, 1H), 7.21 (t, J=7.21 Hz, 1H), 7.17 (s, 1H), 6.74 (dd, J=2.05, 8.22 Hz, 1H), 3.60-3.69 (m, 2H), 3.36-3.48 (m, 1H), 3.20-3.33 (m, 6H), 2.90-3.01 (br. s., 1H), 2.29-2.42 (m, J=6.75 Hz, 1H), 2.08-2.21 (m, 1H).
Following General Procedure D, the title compound was prepared from N-(5-chloro-2-{[3-(dimethylamino)propyl]thio}phenyl)-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, acetone-d6) δ 7.79 (s, 1H), 7.70 (d, J=8.51 Hz, 1H), 7.64 (d, J=7.63 Hz, 1H), 7.52 (d, J=8.51 Hz, 1H), 7.29-7.38 (m, 2H), 7.19-7.28 (m, 1H), 6.74 (d, J=8.51 Hz, 1H), 3.74-3.84 (m, 2H), 3.60-3.65 (m., 2H), 3.26 (s, 6H), 2.27-2.39 (m, 2H).
Following General Procedure A, B, C, the title compound was prepared from 2-Amino-4-chloro-benzenethiol, 5-chloromethyl-oxazolidin-2-one and 1-benzofuran-2-sulfonyl chloride.
1H NMR (600 MHz, acetone-d6) δ 7.62 (dd, J=7.92, 11.15 Hz, 1H), 7.44-7.54 (m, 2H), 7.26-7.44 (m, 3H), 7.20 (ddd, J=7.48, 7.63, 11.30 Hz, 1H), 6.87-7.05 (m, 1H), 6.51 (br. s., 1H), 4.69-5.03 (m, 1H), 3.60 (q, J=8.31 Hz, 1H), 3.45-3.55 (m, 1H), 3.23-3.45 (m, 1H), 3.06-3.17 (m, 1H).
Following General Procedure D, the title compound was prepared from N-(5-chloro-2-{[(2-oxo-1,3-oxazolidin-5-yl)methyl]thio)phenyl)benzofuran-2-sulfonamide.
1H NMR (600 MHz, acetone-d6) δ 7.81 (d, J=1.76 Hz, 1H), 7.68 (d, J=8.22 Hz, 2H), 7.54 (d, J=8.22 Hz, 1H), 7.29-7.40 (m, 2H), 7.22-7.29 (m, 1H), 6.79 (br. s., 1H), 6.47 (br. s., 1H), 4.94 (dt, J=6.93, 14.01 Hz, 1H), 4.17 (dd, J=5.58, 14.09 Hz, 1H), 3.96 (dd, J=6.90, 14.23 Hz, 1H), 3.65 (t, J=8.66 Hz, 1H), 3.32-3.47 (m, 1H).
Following General Procedures A and B the title compound was prepared from 2-amino-4-chloro-benzenethiol, 6-chloromethyl-1H-pyrimidine-2,4-dione and 1-benzofuran-2-sulfonyl chloride.
1H NMR (600 MHz, CD3OD) δ 7.72 (d, J=7.92 Hz, 1H), 7.57 (d, J=8.22 Hz, 1H), 7.45-7.51 (m, 1H), 7.44 (d, J=2.05 Hz, 1H), 7.42 (s, 1H), 7.27-7.37 (m, 2H), 7.09 (br. s., 1H), 5.05 (s, 1H), 3.64 (s, 2H).
Following General Procedure C, the title compound was prepared from N-(5-chloro-2-{[(2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)methyl]thio}phenyl)-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, CD3OD) δ 7.68 (d, J=7.92 Hz, 1H), 7.52 (d, J=8.51 Hz, 1H), 7.49 (d, J=8.51 Hz, 1H), 7.41 (t, J=7.92 Hz, 1H), 7.32-7.37 (m, 2H), 7.27-7.32 (m, 1H), 7.09 (d, J=8.22 Hz, 1H), 5.32 (s, 1H), 4.40 (d, J=13.21 Hz, 1H), 3.89 (d, J=12.91 Hz, 1H).
Following General Procedure D, the title compound was prepared from N-(5-chloro-2-{[(2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)methyl]thio}phenyl)-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, acetone-d6) δ 10.36 (br. s., 1H), 10.15 (br. s., 1H), 7.78 (br. s., 1H), 7.70 (d, J=8.51 Hz, 1H), 7.65 (d, J=7.92 Hz, 1H), 7.42-7.51 (m, 2H), 7.35 (t, J=7.63 Hz, 1H), 7.26 (t, J=7.48 Hz, 1H), 6.87 (d, J=6.75 Hz, 1H), 5.48 (br. s., 1H), 4.76 (br. s., 2H).
Following General Procedure F, G, the title compound was prepared from 2,2′-dithiobis(5-chloroaniline), 1-benzofuran-2-sulfonyl chloride and 3-bromo-propylamine hydrochloride.
1H NMR (600 MHz, DMSO-d6) δ 8.03 (br. s., 2H), 7.69 (d, J=7.63 Hz, 1H), 7.56 (d, J=8.22 Hz, 1H), 7.37 (t, J=7.78 Hz, 1H), 7.23-7.32 (m, 2H), 7.05-7.20 (m, 2H), 6.60 (br. s., 1H), 3.03 (br. s., 2H), 2.91 (t, J=6.60 Hz, 2H), 1.74-1.92 (m, 2H).
A mixture of 3-bromo-propylamine hydrochloride (523 mg, 2.39 mmol), di-tert-butyl dicarbonate (573 mg, 2.63 mmol), NaOH (1N, 1.5 ml) in MeOH was stirred at rt overnight. The mixture was added water and extracted with EtOAc. The organic layer was washed with brine, dried over Na2SO4 and concentrated in vacuo. The residue was purified by column chromatography in silica gel.
1H NMR (600 MHz, CDCl3) δ 4.65 (br. s., 1H), 3.38-3.56 (m, 2H), 3.28 (d, J=5.28 Hz, 2H), 1.95-2.14 (m, 2H), 1.45 (br. s., 9H).
Following General Procedure F, G, C, E the title compound was prepared from 2,2′-dithiobis(5-chloroaniline), 1-benzofuran-2-sulfonyl chloride and (3-bromo-propyl)-carbamic acid tert-butyl ester.
1H NMR (600 MHz, acetone-d6) δ 7.78 (d, J=7.92 Hz, 1H), 7.63 (d, J=8.51 Hz, 1H), 7.54-7.59 (m, 2H), 7.46-7.52 (m, 2H), 7.32-7.40 (m, 1H), 7.21 (d, J=7.92 Hz, 1H), 4.03-4.14 (m, 1H), 3.88-4.00 (m, 1H), 3.35 (ddd, J=6.97, 7.19, 13.72 Hz, 1H), 3.10 (ddd, J=6.46, 6.60, 13.35 Hz, 1H), 2.16-2.36 (m, 2H).
Following General Procedure F, G, D, E the title compound was prepared from 2,2′-dithiobis(5-chloroaniline), 1-benzofuran-2-sulfonyl chloride and (3-bromo-propyl)-carbamic acid tert-butyl ester.
1H NMR (600 MHz, CD3OD) δ 7.88 (d, J=8.51 Hz, 1H), 7.79 (d, J=7.92 Hz, 1H), 7.72 (d, J=1.76 Hz, 1H), 7.68 (s, 1H), 7.61 (d, J=8.51 Hz, 1H), 7.53 (t, J=7.78 Hz, 1H), 7.40 (t, J=7.63 Hz, 1H), 7.34 (d, J=8.51 Hz, 1H), 3.47 (t, J=7.04 Hz, 2H), 3.02 (t, J=7.63 Hz, 2H), 2.06 (quin, 2H).
Following General Procedure A, B, C, the title compound was prepared from 2-amino-4-chloro-benzenethiol, 5-(chloromethyl)uracil and 1-benzofuran-2-sulfonyl chloride.
1H NMR (600 MHz, DMSO-d6) δ 10.99 (s, 1H), 10.75 (br. s., 1H), 7.61 (d, J=7.63 Hz, 1H), 7.51 (d, J=8.22 Hz, 1H), 7.32 (t, J=7.48 Hz, 1H), 7.16-7.27 (m, 3H), 7.01-7.10 (m, 1H), 6.86 (br. s., 1H), 6.64-6.79 (m, 1H), 4.02 (d, J=13.21 Hz, 1H), 3.85 (d, J=13.21 Hz, 1H).
Following General Procedure A, B, D, the title compound was prepared from 2-amino-4-chloro-benzenethiol, 5-(chloromethyl)uracil and 1-benzofuran-2-sulfonyl chloride.
1H NMR (600 MHz, CD3OD) δ 7.69 (d, J=2.05 Hz, 1H), 7.63-7.67 (m, 2H), 7.44 (t, J=8.36 Hz, 1H), 7.32-7.39 (m, 2H), 7.27 (t, J=7.04 Hz, 1H), 7.18 (s, 1H), 6.82 (d, J=7.92 Hz, 1H), 4.70 (s, 2H).
Following General Procedure A, B, the title compound was prepared from 2-amino-4-chloro-benzenethiol, N-(4-Chloromethyl-thiazol-2-yl)-acetamide and 1-benzofuran-2-sulfonyl chloride.
1H NMR (600 MHz, CD3OD) δ 7.70 (d, J=7.92 Hz, 1H), 7.49-7.54 (m, 2H), 7.45-7.50 (m, 1H), 7.42 (s, 1H), 7.29-7.36 (m, 2H), 7.11 (dd, J=2.20, 8.36 Hz, 1H), 6.45 (s, 1H), 3.84 (s, 2H), 2.21 (s, 3H).
Following General Procedure C, the title compound was prepared from N-{4-[({2-[(1-benzofuran-2-ylsulfonyl)amino]-4-chlorophenyl}thio)methyl]-1,3-thiazol-2-yl}acetamide.
1H NMR (600 MHz, acetone-d6) δ 10.93 (br. s., 1H), 7.83 (d, J=7.92 Hz, 1H), 7.80 (s, 1H), 7.62-7.67 (m, 2H), 7.49-7.58 (m, 1H), 7.39 (t, J=7.48 Hz, 1H), 7.08-7.22 (m, 2H), 6.74 (s, 1H), 4.29-4.46 (m, 2H), 2.23 (s, 3H).
Following General Procedure D, the title compound was prepared from N-{4-[({2-[(1-benzofuran-2-ylsulfonyl)amino]-4-chlorophenyl}thio)methyl]-1,3-thiazol-2-yl}acetamide.
1H NMR (600 MHz, acetone-d6) δ 10.90 (br. s., 1H), 9.65 (br. s., 1H), 7.81 (d, J=7.34 Hz, 2H), 7.75 (d, J=2.05 Hz, 1H), 7.65 (d, J=8.51 Hz, 1H), 7.60 (s., 1H), 7.51 (s., 1H), 7.38 (t, J=7.19 Hz, 1H), 7.27 (s., 1H), 6.95 (s, 1H), 4.67 (br. s., 2H), 2.21 (s, 3H).
Following General Procedure D, the title compound (53 mg, 38%) was prepared from N-(5-chloro-2-{[2-(3,5-dimethyl-1H-pyrazol-4-yl)(ethyl]thio}phenyl)-1-benzofuran-2-sulfonamide.
1H NMR (600 MHz, CD3OD) δ 7.79 (d, J=1.76 Hz, 1H), 7.76 (d, J=8.51 Hz, 1H), 7.67 (d, J=7.92 Hz, 1H), 7.57 (d, J=0.59 Hz, 1H), 7.37 (ddd, J=1.17, 7.19, 8.36 Hz, 1H), 7.26-7.31 (m, 1H), 7.20-7.24 (m, 1H), 7.15 (dd, J=1.76, 8.51 Hz, 1H), 3.40-3.50 (m, 2H), 2.60-2.72 (m, 2H), 2.01 (s, 6H).
Following General Procedure C, the title compound (174 mg, 79%) was prepared from N-(5-fluoro-24(3-nitrobenzyl)thio)phenyl)benzofuran-2-sulfonamide.
1H NMR (600 MHz, CD3OD) δ 7.98 (d, J=9.10 Hz, 1H), 7.67 (d, J=7.63 Hz, 1H), 7.49 (br. s., 1H), 7.40 (s, 1H), 7.35 (d, J=8.51 Hz, 1H), 7.26-7.32 (m, 2H), 7.21-7.26 (m, 2H), 7.12 (d, J=7.63 Hz, 1H), 6.74-6.80 (m, 1H), 6.40 (t, J=7.34 Hz, 1H), 4.52-4.64 (m, 2H).
Following General Procedure A, B, C, and K, the title compound was prepared from 2-amino-4-chloro-benzenethiol, 1-bromomethyl-3-nitro-benzene, and 2,4-difluoro-benzenesulfonyl chloride.
1H NMR (600 MHz, METHANOL-d4) δ 7.95 (d, J=6.16 Hz, 1H), 7.19-7.30 (m, 3H), 7.11-7.19 (m, 2H), 7.00 (t, J=7.78 Hz, 1H), 6.72 (dd, J=1.47, 7.92 Hz, 1H), 6.61 (s, 1H), 6.44 (d, J=7.04 Hz, 1H), 4.34 (d, J=12.91 Hz, 1H), 4.07 (d, J=12.90 Hz, 1H).
Following General Procedure B and D, the title compound was prepared from 5-chloro-2-(methylthio)aniline and 4-isopropyl-benzenesulfonyl chloride.
1H NMR (600 MHz, CHLOROFORM-d) δ 9.13 (s, 1H), 7.80-7.85 (m, 2H), 7.71-7.76 (m, 2H), 7.34-7.39 (m, 2H), 7.16 (dd, J=2.05, 8.51 Hz, 1H), 2.95 (spt, J=6.90 Hz, 1H), 2.81 (s, 3H), 1.22 (d, J=7.04 Hz, 6H).
Following General Procedure B, the title compound (406 mg, 56%) was prepared from 5-methoxy-2-((3-nitrobenzyl)thio)aniline (450 mg, 1.552 mmol) and benzofuran-2-sulfonyl chloride (335 mg, 1.552 mmol) in pyridine (5 ml).
1H NMR (600 MHz, CD3OD) δ 8.53 (dd, J=1.76, 5.87 Hz, 1H), 7.96 (ddd, J=1.03, 2.27, 8.14 Hz, 1H), 7.70 (d, J=7.92 Hz, 1H), 7.63 (t, J=1.91 Hz, 1H), 7.51 (s, 1H), 7.42 (dd, J=1.17, 8.22 Hz, 1H), 7.24-7.37 (m, 3H), 7.11 (s, 1H), 7.00 (s, 1H), 6.55 (dd, J=2.79, 8.66 Hz, 1H), 3.83 (s, 2H), 3.71 (s, 3H).
Following General Procedure D and E, the title compound was prepared from tert-butyl 3-[({2-[(1-benzofuran-2-ylsulfonyl)amino]-4-chlorophenyl}thio)methyl]-1H-pyrazole-1-carboxylate (Compound 22).
1H NMR (600 MHz, CD3OD) δ 7.71 (d, J=1.76 Hz, 1H), 7.66 (d, J=7.92 Hz, 1H), 7.51 (d, J=8.51 Hz, 1H), 7.31-7.43 (m, 4H), 7.24-7.29 (m, 1H), 6.79 (d, J=7.04 Hz, 1H), 5.82 (br. s., 1H), 4.99 (br. s., 2H).
Following General Procedure A, B, and K, the title compound was prepared from 2-amino-4-chloro-benzenethiol, 1-bromomethyl-3-nitro-benzene, and 4-chloro-2-fluoro-benzenesulfonyl chloride.
1H NMR (600 MHz, CHLOROFORM-d) δ 7.84 (t, J=8.22 Hz, 1H), 7.47 (d, J=2.05 Hz, 1H), 7.25 (dt, J=1.03, 8.51 Hz, 1H), 7.17-7.22 (m, 2H), 7.04 (t, J=7.63 Hz, 1H), 6.93 (dd, J=2.35, 8.22 Hz, 1H), 6.58 (dt, J=1.17, 7.92 Hz, 1H), 6.40-6.45 (m, 2H), 3.72 (s, 2H).
HEK-Gqi5 cells stably expressing CCR2 were cultured in (DMEM high glucose, 10% FBS, 1% PSA, 400 μg/ml geneticin and 50 μg/ml hygromycin. Appropriate positive control chemokines (MCP-1, MIP1A or RANTES) was used as the positive control agonist for screening compound-induced calcium activity assayed on the FLIPRTetra. The drug plates were prepared in 384-well microplates using the EP3 and the MuItiPROBE robotic liquid handling systems. Compounds were synthesized and tested for CCR2 activity.
Table 1 shows activity at CCR2 receptor (IC50) nM
This application is a continuation application of United States Non-Provisional patent application Ser. No. 13/872,845, filed Apr. 29, 2013, which is a divisional application of United States Non-Provisional patent application Ser. No. 13/315,615, filed Dec. 9, 2011 which claims the benefit of U.S. Provisional Patent Application Ser. No. 61/423,940, filed Dec. 16, 2010, the disclosures of which are hereby incorporated in their entirety by reference.
| Number | Date | Country | |
|---|---|---|---|
| 61423940 | Dec 2010 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 13315615 | Dec 2011 | US |
| Child | 13872845 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 13872845 | Apr 2013 | US |
| Child | 14482718 | US |
