申请人:Takeda Chemical Industries, Ltd.
公开号:US05389641A1
公开(公告)日:1995-02-14
Fused heterocyclic compounds of the formula (I): ##STR1## wherein R.sup.1 is an optionally substituted hydrocarbon residue which may be attached through a hetero atom; R.sup.2 is a group capable of forming an anion or a group convertible thereinto; R.sup.3 is an optionally substituted aromatic hydrocarbon or heterocyclic residue which contains at least one hetero atom; X is a direct bond or a spacer having an atomic length of two or less between the R.sup.3 group and the ring W group; W is an optionally substituted aromatic hydrocarbon or heterocyclic residue which contains at least one hereto atom; a,c and d are independently selected from the group consisting of one or two optionally substituted carbon atoms and one or two optionally substituted hetero atoms; b and e are independently selected from the group consisting of one optionally substituted carbon atom and one optionally substituted nitrogen atom wherein one of b or e must be nitrogen; the dotted line is a bond to form one double bond; n is an integer of 1 or 2 and when a, which is an optionally substituted carbon atom, is taken together with R.sup.1, the following group: ##STR2## may form a ring group; provided that when ##STR3## is a benzimidazole, thieno[3,4-d]imidazole, or thieno[2,3-d]imidazole ring, at least one of the group: ##STR4## and R.sup.3 is an optionally substituted heterocyclic residue; 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)的融合杂环化合物:##STR1##
其中,R.sup.1是可选取代的碳氢基残基,可以通过杂原子连接;R.sup.2是能够形成负离子或可转化为负离子的基团;R.sup.3是可选取代的含有至少一个杂原子的芳香族碳氢基或杂环残基;X是R.sup.3基团和环W基团之间具有原子长度为二或更少的直接键或间隔物;W是可选取代的含有至少一个杂原子的芳香族碳氢基或杂环残基;a、c和d分别从包括一个或两个可选取代的碳原子和一个或两个可选取代的杂原子的群体中独立选择;b和e分别从包括一个可选取代的碳原子和一个可选取代的氮原子的群体中独立选择,其中b或e必须是氮;虚线是一条键,形成一个双键;n是1或2的整数,当a是可选取代的碳原子时,与R.sup.1一起取下面的基团:##STR2## 可以形成一个环基团;但当##STR3## 是苯并咪唑、噻吩[3,4-d]咪唑或噻吩[2,3-d]咪唑环时,至少一个基团:##STR4## 和R.sup.3是可选取代的杂环残基;以及其药学上可接受的盐,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(如心脏病、心力衰竭、心肌梗塞等)、中风、脑卒中、肾炎等)的治疗剂。