Phenoxyacetic acid derivatives, preparation thereof, pharmaceutical compositions comprising them and use
申请人:TANABE SEIYAKU CO., LTD.
公开号:EP0325245A1
公开(公告)日:1989-07-26
Novel phenoxyacetic acid derivative of the formula:
wherein R is a substituted or unsubstituted phenyl group, naphthyl group or a sulfur-containing 5-membered hetero-monocyclic group, R¹, R², R³ and R⁴ are hydrogen atom, a lower alkyl group, a phenyl-lower alkyl group or phenyl group, R⁵ is hydrogen atom or a lower alkyl group, R⁶ is carboxyl group, a protected carboxyl group, hydroxy group or a di(lower alkyl)-amino group, Ring A is a substituted or unsubstituted phenylene group, m is 0 or 1 and n is an integer of 0 to 5,
provided that, when m is 0,
(1) at least either one of R¹ to R⁴ is or/are a phenyl-lower alkyl group or phenyl group,
(2) at least either one of R¹to R⁴ is or/are a lower alkyl group, and R⁶ is hydroxy group, or
(3) all of R¹ to R⁴ are hydrogen atom, and Ring A is a substituted phenylene group,
or a pharmaceutically acceptable salt thereof are disclosed. Said derivative (I) and a pharmaceutically aceptable salt thereof have a potent platelet aggregation-inhibiting activity. The derivative (I) is used for the prophylaxis or treatment of thrombotic diseases in warm-blooded animals. The invention includes a variety of preparation methods for the above derivative (I) and pharmaceutical compositions comprising said derivative (I) in therapeutically effective amounts.
式中的新型苯氧乙酸衍生物:
其中 R 是取代或未取代的苯基、萘基或含硫五元杂单环基团,R¹、R²、R³ 和 R⁴ 是氢原子、低级烷基、苯基-低级烷基或苯基、R⁵ 是氢原子或低级烷基,R⁶ 是羧基、受保护的羧基、羟基或二(低级烷基)氨基,环 A 是取代或未取代的亚苯基,m 是 0 或 1,n 是 0 至 5 的整数、
条件是,当 m 为 0 时
(1) R¹ 至 R⁴ 中至少有一个是或/是苯基低级烷基或苯基、
(2) R¹ 至 R⁴ 中至少有一个是或/是低级烷基,且 R⁶ 是羟基,或
(3) 所有 R¹ 至 R⁴ 均为氢原子,且环 A 为取代的亚苯基、
或其药学上可接受的盐。所述衍生物(I)及其药学上可接受的盐具有强效的血小板聚集抑制活性。衍生物(I)可用于预防或治疗温血动物的血栓性疾病。本发明包括上述衍生物(I)的各种制备方法和包含治疗有效量的上述衍生物(I)的药物组合物。