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【结 构 式】

【分子编号】22375

【品名】4-bromo-N-(3-methyl-5-isoxazolyl)benzenesulfonamide

【CA登记号】

【 分 子 式 】C10H9BrN2O3S

【 分 子 量 】317.16314

【元素组成】C 37.87% H 2.86% Br 25.19% N 8.83% O 15.13% S 10.11%

与该中间体有关的原料药合成路线共 1 条

合成路线1

该中间体在本合成路线中的序号:(III)

4-Bromobenzenesulfonyl chloride (I) was condensed with aminoisoxazole (II) in pyridine to afford sulfonamide (III). Subsequent Suzuki coupling of (III) to 4-tolylboronic acid (IV) under palladium catalysis provided biphenylsulfonamide (V), which was finally brominated with N-bromosuccinimide in cold CH2Cl2 to furnish the target bromoisoxazole.

1 Chan, M.F.; Kois, A.; Verner, E.J.; Raju, B.G.; Castillo, R.S.; Wu, C.; Okun, I.; Stavros, F.D.; Balaji, V.N.; The discovery and structure-activity relationships of nonpeptide, low molecular weight antagonists selective for the endothelin ETB receptor. Bioorg Med Chem 1998, 6, 12, 2301.
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) 18964 4-bromobenzenesulfonyl chloride 98-58-8 C6H4BrClO2S 详情 详情
(II) 17834 3-methyl-5-isoxazolylamine; 3-methyl-5-isoxazolamine; 5-Amino-3-methylisoxazole 14678-02-5 C4H6N2O 详情 详情
(III) 22375 4-bromo-N-(3-methyl-5-isoxazolyl)benzenesulfonamide C10H9BrN2O3S 详情 详情
(IV) 15540 4-methylphenylboronic acid; p-Tolylboronic acid 5720-05-8 C7H9BO2 详情 详情
(V) 22377 4'-methyl-N-(3-methyl-5-isoxazolyl)[1,1'-biphenyl]-4-sulfonamide C17H16N2O3S 详情 详情
Extended Information