申请人:KYOWA HAKKO KOGYO KABUSHIKI KAISHA
公开号:EP0423805A2
公开(公告)日:1991-04-24
There are disclosed condensed purine derivatives represented by formula:
alkyl or benzyl; each of X¹ and X² independently represents hydrogen, lower alkyl, aralkyl or phenyl; and n is an integer of 0 or 1; R¹ represents hydrogen, lower alkyl, alicyclic alkyl, noradamantan-3-yl, dicyclopropylmethyl or styryl; and R² represents hydrogen, lower alkyl or alicyclic alkyl; or a pharmaceutically acceptable salt thereof. The derivatives and pharmaceutically acceptable salts are useful as diuretics, renal protecting agents, antiallergic agents and hypotensives.
公开了由式表示的缩合嘌呤衍生物:
烷基或苄基;X¹和X²各自独立地代表氢、低级烷基、芳烷基或苯基;n为0或1的整数;R¹代表氢、低级烷基、脂环烷基、去甲金刚烷-3-基、二环丙基甲基或苯乙烯基;R²代表氢、低级烷基或脂环烷基;或其药学上可接受的盐。这些衍生物和药学上可接受的盐可用作利尿剂、肾脏保护剂、抗过敏剂和降血压剂。