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。