申请人:Takeda Chemical Industries, Ltd.
公开号:EP0483683A2
公开(公告)日:1992-05-06
Benzimidazole derivatives of the formula (I):
wherein the ring A is a thiophene ring which may optionally contain substitution in addition to the R3 group; R1 is hydrogen or optionally substituted hydrocarbon residue which may be bonded through a hetero atom; R2 and R3 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.
式 (I) 的苯并咪唑衍生物:
其中环 A 是噻吩环,除 R3 基团外,还可任选含有取代基;R1 是氢或任选取代的烃残基,可通过杂原子键合;R2 和 R3 独立地是能够形成阴离子的基团或可转化的基团;X 是直接键,或者是亚苯基和苯基之间原子长度为 2 或更短的间隔键;以及 n 是 1 或 2 的整数;或其盐,具有强效的血管紧张素 II 拮抗活性和降压活性,因此可作为治疗剂用于治疗循环系统疾病,如高血压疾病、心脏病(如如心动过速、心力衰竭、心肌梗塞等)、中风、脑中风、肾炎等。