申请人:Takeda Chemical Industries, Ltd.
公开号:US04760068A1
公开(公告)日:1988-07-26
Novel compound of the formula: ##STR1## wherein R.sup.1 is pyridyl group, R.sup.2 is a phenyl group, a thienyl group, a furyl group, a naphthyl group, a benzothienyl group or pyridyl group, which may optionally have a lower alkoxy group, a lower alkyl group, a halogen atom, trifluoromethyl group, a lower alkenyl group or methylenedioxy group, R.sup.3 is hydrogen atom or a lower alkyl group, and n is an integer of 0 to 6, Y is sulphur atom, methylene group or a group of the formula: ##STR2## wherein R.sup.4 is hydrogen atom or acetyl group, and m is 0 or 1, and their pharmaceutically acceptable salts having an inhibitory action on bio-synthesis of thromboxane A.sub.2 (TXA.sub.2) and an effect of accelerating the productivility of prostaglandin I.sub.2 (PGI.sub.2), and can be used for mammals to the prophylaxis or therapy of thrombosis caused by platelet aggregation or ischemic diseases caused by vasospasms in cardiac, cerebral and peripheral circulatory system (e.g. cardiac infarction, apoplexy, infarct of blood vessels in kidney, lung and other organs, pectic ulcer, etc.).
化合物的结构式为:##STR1## 其中R.sup.1是
吡啶基,R.sup.2是苯基、
噻吩基、
呋喃基、
萘基、
苯并噻吩基或
吡啶基,可以选择性地具有较低的烷氧基、较低的烷基、卤素原子、三
氟甲基基团、较低的烯基或亚甲氧基基团,R.sup.3是氢原子或较低的烷基,n为0到6的整数,Y是
硫原子、亚甲基基团或式子:##STR2## 其中R.sup.4是氢原子或乙酰基团,m为0或1,以及其药学上可接受的盐,具有抑制血栓素A.sub.2(TXA.sub.2)的
生物合成和加速
前列腺素I.sub.2(
PGI.sub.2)的产生的作用,并可用于哺乳动物的预防或治疗由血小板聚集引起的血栓形成或由心脏、脑和周围循环系统中的血管痉挛引起的缺血性疾病(例如心肌梗塞、中风、肾脏、肺和其他器官的血管梗塞、消化性溃疡等)。