申请人:SMITH KLINE & FRENCH LABORATORIES
LIMITED
公开号:EP0314400A1
公开(公告)日:1989-05-03
Compounds of formula (1) :
and pharmaceutically acceptable salts thereof are described, wherein R¹ is hydrogen or methyl; n is one, and when R¹ is hydrogen n can also be two; R², R³ and R⁴ are independently hydrogen, C₁₋₄alkyl or hydroxy(C₁₋₄)alkyl, provided that R², R³ and R⁴ are not all hydrogen.
These compounds have inotropic, vasodilator bronchodilating and platelet aggregation inhibiting properties. Pharmaceutical compositions are described as are methods of use. Intermediates and processes for the preparation of the compounds of the formula (1) are described.
描述了式 (1) :
及其药学上可接受的盐,其中 R¹ 是氢或甲基;n 是 1,当 R¹ 是氢时,n 也可以是 2;R²、R³ 和 R⁴ 独立地是氢、C₁₋₄烷基或羟基(C₁₋₄)烷基,但 R²、R³ 和 R⁴ 并非都是氢。
这些化合物具有肌力、血管扩张支气管扩张和血小板聚集抑制特性。本文介绍了药物组合物以及使用方法。还描述了制备式(1)化合物的中间体和工艺。