Conformationally restricted compounds are described which are therapeutically effective as angiotensin II antagonists for the treatment of circulatory disorders. Compounds of particular interest are of Formula I ##STR1## wherein W is N or CH.sub.2 ; wherein X is N or CR.sup.2 ; wherein Y is (CH.sub.2).sub.n and n is 1 to 3; wherein Z is C.dbd.R.sup.3 or CR.sup.4 R.sup.5, or wherein Y and Z together forms --CR.sup.6 .dbd.CR.sup.7 --, --CR.sup.6 .dbd.CR.sup.7 --CH.sub.2 or --CR.sup.6 .dbd.CR.sup.7 --CH.sub.2 --CH.sup.2 --; wherein the remainder of the variables are as defined in the specification; or a pharmaceutically suitable salt or tautomer thereof.
本发明涉及一种构象限制化合物,其作为
血管紧张素II拮抗剂在治疗循环系统疾病方面具有治疗效果。特别感兴趣的化合物为公式I的化合物:其中W为N或CH.sub.2; X为N或CR.sup.2; Y为(CH.sub.2).sub.n,n为1至3; Z为C.dbd.R.sup.3或CR.sup.4 R.sup.5,或其中Y和Z一起形成--CR.sup.6.dbd.CR.sup.7--,--CR.sup.6.dbd.CR.sup.7--CH.sub.2或--CR.sup.6.dbd.CR.sup.7--CH.sub.2--CH.sup.2--; 其中其余变量如说明书中所定义的;或其药学上适用的盐或互变异构体。