申请人:Takeda Chemical Industries, Ltd.
公开号:US05463073A1
公开(公告)日:1995-10-31
Benzimidazole derivatives of the formula (I): ##STR1## wherein the ring A is a thiophene ring which may optionally contain substitution in addition to the R.sup.3 group; R.sup.1 is hydrogen or an optionally substituted hydrocarbon residue which may be bonded through a heteroatom; R.sup.2 and R.sup.3 are independently 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; and n is an integer of 1 or 2; or a salt 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.
苯并咪唑衍生物的结构式(I):其中环A是一种噻吩环,除了R.sup.3基团外还可以含有取代基;R.sup.1是氢或一个可能通过杂原子键合的可选择取代的碳氢残基;R.sup.2和R.sup.3独立地是能够形成阴离子或可转化为其的基团;X是苯基和苯基之间具有两个或更少原子长度的直接键或间隔物;n是1或2的整数;或其盐,具有强大的抗肾素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疾病、心脏疾病(例如高心脏排血量、心力衰竭、心肌梗死等)、中风、脑卒中、肾炎等的治疗药物。