申请人:Takeda Chemical Industries, Ltd.
公开号:US05162326A1
公开(公告)日:1992-11-10
Novel pyrimidinedione derivatives of the formula (I): ##STR1## wherein R.sup.1 is hydrogen or a hydrocarbon residue which may be substituted; R.sup.2 is hydrogen, halogen, nitro, optionally substituted amino, formyl or a hydrocarbon residue which may be substituted; R.sup.3 is a hydrocarbon residue which may be substituted; R.sup.4 is hydrogen, halogen or nitro; R.sup.5 is a residue capable of forming an anion or a residue convertible into an anion; X is a direct bond or a spacer having one atomic length and containing an oxygen, nitrogen or sulfur atom; Y is a direct bond or a spacer having atomic length of two or less between the phenylene group and the phenyl group; n is an integer of 1 or 2; and the pharmaceutically acceptable salts thereof have potent angiotensin II antagonistic activity and hypotensive activity, thus being useful as therapeutic agents for treating circulatory system diseases such as hypertensive diseases, heart diseases, strokes, etc.
化合物(I)的新型嘧啶二酮衍生物的结构式如下:其中R.sup.1为氢或可被取代的碳氢基;R.sup.2为氢、卤素、硝基、可选择取代的氨基、甲酰基或可被取代的碳氢基;R.sup.3为可被取代的碳氢基;R.sup.4为氢、卤素或硝基;R.sup.5为能形成负离子的残基或可转化为负离子的残基;X为直接键或含有一个氧、氮或硫原子的长度为一个原子的间隔物;Y为苯基团和苯基之间长度为两个或更少原子的直接键或间隔物;n为1或2的整数;其药学上可接受的盐具有强大的抗血管紧张素II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、中风等的治疗剂。