Carbostyril derivative or a pharmaceutically acceptable acid addition salt thereof, having excellent platelate aggregation inhibitory effect, calcium antagonism, hypotensive effect and phosphodiesterase inhibitory effect are useful as prophylactic or treating agents for thrombosis, circulation improving agents for coronary blood flow such as coronary vasodilators, hypotensive agents and phosphodiesterase inhibitors. Furthermore, the carbostyril derivatives are weak in heart rate increasing activity and also in cardiac muscle contraction increasing activity, and the carbostyril derivatives are useful agents for curing and treating heart diseases such as cardiac angina and myocardial infarction caused by hypercoagulability of the platelets. Processes are disclosed for preparation of the carbostyril derivatives.
羧甲基苯基丙酰衍
生物或其药学上可接受的酸加成盐,具有优异的血小板聚集抑制作用、
钙拮抗作用、降压作用和
磷酸二酯酶抑制作用,可用作预防或治疗血栓形成的药物、改善冠状动脉血流的循环
促进剂,如冠状动脉扩张剂、降压药和
磷酸二酯酶抑制剂。此外,羧甲基苯基丙酰衍
生物在增加心率和心肌收缩方面较弱,可用作治疗由血小板高凝导致的心脏病,如心绞痛和心肌梗死的药物。本文还揭示了制备羧甲基苯基丙酰衍
生物的方法。