申请人:Takeda Chemical Industries, Ltd.
公开号:US04727078A1
公开(公告)日:1988-02-23
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 have 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.).
化合物的新型配方:##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,可选地带有较低的烷氧基,较低的烷基,卤素原子,三氟甲基基团,较低的烯基或亚甲二氧基基团,R.sup.3是氢原子或较低的烷基,n是0到6的整数,Y是硫原子,亚甲基基团或公式的基团:##STR2##
其中,R.sup.4是氢原子或乙酰基,m是0或1,它们的药学上可接受的盐具有抑制血栓素A.sub.2(TXA.sub.2)的生物合成作用和加速前列腺素I.sub.2(PGI.sub.2)的产生能力,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)。