申请人:WAKUNAGA SEIYAKU KABUSHIKI KAISHA
公开号:EP0656355A1
公开(公告)日:1995-06-07
A biphenylmethane derivative represented by general formula (I), a salt thereof, and a remedy for circulatory system diseases containing the same, wherein A represents the group (II) or (III) wherein R¹ represents hydrogen, lower alkyl, lower cycloalkyl, optionally substituted phenyl, optionally substituted aralkyl, optionally substituted acyl, or amino acid residue; X represents oxygen or sulfur; Y represents nitrogen or =CR²-; Z represents oxygen, nitrogen or =CR³- (excluding the case where both of Y and Z represent nitrogen simultaneously); R² and R³ represent each independently hydrogen, halogen, optionally substituted lower alkyl, optionally protected carboxyl, lower cycloalkyl, lower alkenyl, lower alkoxy, lower alkylthio or aryl, or alternatively R², R³ and the adjacent carbon atoms may be combined together to form an optionally substituted benzene ring; and B represents cyano, optionally protected carboxyl or optionally protected tetrazol-5-yl. This compound has such potent angiotensin II antagonism and hypotensive effect that it is useful for treating circulatory system diseases such as hypertension, cardiac diseases and cerebral apoplexy.
通式(I)代表的
联苯甲烷衍
生物、其盐和含有该衍
生物的治疗循环系统疾病的药物,其中A代表基团(II)或(III),其中R¹代表氢、低级烷基、低级环烷基、任选取代的苯基、任选取代的芳烷基、任选取代的酰基或
氨基酸残基;X代表氧或
硫;Y代表氮或=CR²-;Z 代表氧、氮或 =CR³-(不包括 Y 和 Z 同时代表氮的情况);R² 和 R³ 各自独立地代表氢、卤素、任选取代的低级烷基、任选保护的羧基、低级环烷基、低级烯基、低级烷氧基、低级烷
硫基或芳基,或者 R²、R³ 和相邻碳原子可以结合在一起形成任选取代的苯环;B 代表
氰基、任选保护的羧基或任选保护的
四唑-5-基。该化合物具有很强的
血管紧张素 II 拮抗和降压作用,可用于治疗高血压、心脏病和脑中风等循环系统疾病。