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【结 构 式】

【药物名称】Defactinib Hydrochloride

【化学名称】N-Methyl-4-[4-[3-[N-methyl-N-(methylsulfonyl)amino]pyrazin-2-ylmethylamino]-5-(trifluoromethyl)pyrimidin-2-ylamino]benzamide hydrochloride

【CA登记号】1073160-26-5;1073154-85-4 (as free base)

【 分 子 式 】C20H21F3N8O3S .HCl

【 分 子 量 】546.954

【开发单位】Pfizer, Inc. (US), licensed to Verastem, Inc. (US)

【药理作用】Dual FAK1/PYK2 Inhibitor;Treatment of non-small cell lung cancer;Treatment of malignant mesothelioma;Treatment of ovarian cancer

合成路线1

Condensation of 3-chloropyrazine-2-carbonitrile (I) with N-methylmethanesulfonamide (II) in the presence of Cs2CO3 in acetonitrile at 80 °C gives N-(3-cyano-2-pyrazinyl)-N-methylmethanesulfonamide (III), which by nitrile reduction using H2 over Pd/C in methanolic ammonia, followed by treatment with AcOH in EtOAc provides the primary amine (IV). Condensation of 2,4-dichloro-5-(trifluoromethyl) pyrimidine (V) with 4-amino-N-methylbenzamide (VI) by means of ZnBr2 and Et3N in DCE/t-BuOH affords diaryl amine (VII). Finally, (aminomethyl)pyrazine (IV) is coupled with chloropyrimidine (VII) in the presence of DIEA in DCE/t-BuOH at 80 °C and the resulting free base is treated with HCl in MeOH .

1 Luzzio, M.J., Autry, C.L., Bhattacharya, S.K. et al. (Pfizer Products Inc. ). Sulfonyl amide derivatives for the treatment of abnormal cell growth. US 2014100368; US 8247411; EP 2146779; US 2013005964; JP 2010524914; CN 103951658; US 2011166120; US 8440822; WO 2008129380.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 42535 3-chloro-2-pyrazinecarbonitrile 55557-52-3 C5H2ClN3 详情 详情
(II) 67859 N-methylmethanesulfonamide 1184-85-6 C2H7NO2S 详情 详情
(III) 67860 N-(3-cyano-2-pyrazinyl)-N-methylmethanesulfonamide   C7H8N4O2S 详情 详情
(IV) 67861 N-(3-(aminomethyl)pyrazin-2-yl)-N-methylmethanesulfonamide acetate   C7H12N4O2S.C2H4O2 详情 详情
(V) 67477 2,4-dichloro-5-(trifluoromethyl)pyrimidine 3932-97-6 C5HCl2F3N2 详情 详情
(VI) 67862 4-amino-N-methylbenzamide 6274-22-2 C8H10N2O 详情 详情
(VII) 67863 4-((4-chloro-5-(trifluoromethyl)pyrimidin-2-yl)amino)-N-methylbenzamide   C13H10ClF3N4O 详情 详情
(VIII) 67864 N-methyl-4-((4-(((3-(N-methylmethylsulfonamido)pyrazin-2-yl)methyl)amino)-5-(trifluoromethyl)pyrimidin-2-yl)amino)benzamide   C20H21F3N8O3S 详情 详情
Extended Information