申请人:TAISHO PHARMACEUTICAL CO. LTD
公开号:EP0469901A1
公开(公告)日:1992-02-05
Sulfonamide derivative, useful as blood platelet aggregation inhibitors, have the formula:
in which A is a naphthyl group, a pyridyl group, a phenyl group, a phenyl group substituted by 1 to 5 substituents selected from halogen atoms, alkyl groups having 1 to 4 carbon atoms, alkoxy groups having 1 to 4 carbon atoms, nitro groups and acetamido groups, or an alkyl group having 1 to 20 carbon atoms; B is an alkylene group having 1 to 3 carbon atoms, a group -OCH₂- or a group -CH=CH-; X and Y are the same or different, and each is a hydrogen or fluorine atom; R is a carboxy group, an alkyoxycarbonyl group having 2 to 5 carbon atoms, a hydroxymethyl group or a group of the formula
(in which R¹ is a hydrogen atom or an alkyl group having 1 to 3 carbon atoms; R² is a hydrogen atom, a hydroxyl group, an alkyl group having 1 to 3 carbon atoms, a carboxymethyl group or an alkoycarbonylmethyl group having 3 to 6 carbon atoms); m is 0, 1 or 2; n is 0,1,2 or 3; or salts thereof.
This invention also provided intermediates for the preparation of the sulfonamide, which intermediates are thiophenols of the formula:
(in which R, X and Y are as defined above).
磺酰胺衍生物可用作血小板聚集抑制剂,其化学式为
其中 A 是萘基、吡啶基、苯基、被 1 至 5 个取代基取代的苯基,取代基可选 自卤素原子、1 至 4 个碳原子的烷基、1 至 4 个碳原子的烷氧基、硝基和乙酰氨基, 或 1 至 20 个碳原子的烷基;B 是具有 1 至 3 个碳原子的亚烷基、基团-OCH₂- 或基团-CH=CH-; X 和 Y 相同或不同,各自是氢原子或氟原子; R 是羧基、具有 2 至 5 个碳原子的烷氧羰基、羟甲基或式如下的基团
(其中,R¹是氢原子或具有 1 至 3 个碳原子的烷基;R²是氢原子、羟基、具有 1 至 3 个碳原子的烷基、羧甲基或具有 3 至 6 个碳原子的烷酰基甲基);m 是 0、1 或 2;n 是 0、1、2 或 3;或其盐。
本发明还提供了制备磺酰胺的中间体,这些中间体是式中的噻吩酚:
(其中 R、X 和 Y 如上定义)。