申请人:Takeda Chemical Industries, Ltd.
公开号:US05705517A1
公开(公告)日:1998-01-06
Benzimidazole derivatives of the formula (I): ##STR1## wherein the ring A is a benzene ring which may optionally contain substitution in addition to the R' group; R' is hydrogen or an optionally substituted hydrocarbon residue; R.sup.2 is a group capable of forming an anion or a group convertible thereinto; X is a direct bond or a spacer having an atomic length of two or less between the phenylene group and the phenyl group; R' is carboxyl, an ester thereof, an amide thereof or a group capable of forming an anion or convertible to an anion; Y is --O--, --S(O).sub.m -- or --N(R.sup.4)-- wherein m is an integer of 0, 1 or 2 and R.sup.4 is hydrogen or an optionally substituted alkyl group; and n is an integer of 1 or 2; and the pharmaceutically acceptable salts thereof, have potent angiotensin II antagonistic activity and antihypertensive activity, thus being useful as therapeutic agents for treating circulatory system diseases such as hypertensive diseases, heart diseases (e.g. hypercardia, heart failure, cardiac infarction, etc.), strokes, cerebral apoplexy, nephritis, etc.
公式(I)的苯并咪唑衍生物:##STR1## 其中环A是苯环,除了R'基外还可以包含取代基;R'是氢或可选的取代的碳氢残基;R.sup.2是能够形成负离子或可转化为负离子的基团;X是直接键或具有原子长度为2或更少的间隔物,位于苯基团和苯基团之间;R'是羧基,其酯,其酰胺或能够形成负离子或可转化为负离子的基团;Y是--O--,--S(O).sub.m--或--N(R.sup.4)--,其中m是0、1或2的整数,R.sup.4是氢或可选的取代的烷基;n是1或2的整数;以及其药物可接受的盐具有强大的血管紧张素II拮抗活性和降压活性,因此可用作治疗循环系统疾病,如高血压病,心脏病(例如高心率,心力衰竭,心肌梗死等),中风,脑中风,肾炎等的治疗剂。