申请人:Pfizer Inc.
公开号:US05618941A1
公开(公告)日:1997-04-08
Compounds of formula (I) wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each H or C.sub.1 -C.sub.4 alkyl; R.sup.5 is (CH.sub.2).sub.m NHSO.sub.2 R.sup.6 or (CH).sub.m NHCOR.sup.6 ; R.sup.6 is C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.6 cycloalkyl optionally substituted by aryl, aryl or heteroaryl; R.sup.7 is H, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halo, CF.sub.3, OCF.sub.3, CN, CONH.sub.2, or S(O).sub.n (C.sub.1 -C.sub.4 alkyl); X is CH.sub.2, CHCH.sub.3, CH(OH), C(OH)CH.sub.3, C.dbd.CH.sub.2, CO or O; m is 0 or 1 and n is 0, 1 or 2, and their pharmaceutically acceptable salts and biolabile esters, are antagonists of thromboxane A.sub.2 of utility, particulary in combination with a thromboxane synthetase inhibitor, in the treatment of atherosclerosis and unstable angina and for prevention of reocclusion after percutaneous transluminal angioplasty.
式(I)中的化合物,其中R.sup.1、R.sup.2、R.sup.3和R.sup.4分别为H或C.sub.1 -C.sub.4烷基;R.sup.5为(CH.sub.2).sub.m NHSO.sub.2R.sup.6或(CH).sub.m NHCOR.sup.6;R.sup.6为C.sub.1 -C.sub.6烷基,C.sub.3 -C.sub.6环烷基,可选择地被芳基,芳基或杂环烷基取代;R.sup.7为H,C.sub.1 -C.sub.4烷基,C.sub.1 -C.sub.4烷氧基,卤素,CF.sub.3,OCF.sub.3,CN,CONH.sub.2或S(O).sub.n(C.sub.1 -C.sub.4烷基);X为CH.sub.2,CHCH.sub.3,CH(OH),C(OH)CH.sub.3,C.dbd.CH.sub.2,CO或O;m为0或1,n为0, 1或2,以及它们的药用盐和生物降解酯,是治疗动脉粥样硬化和不稳定性心绞痛以及预防经皮血管腔成形术后再闭塞的血栓素A.sub.2拮抗剂,尤其是与血栓素合成酶抑制剂结合使用时。