申请人:FUJISAWA PHARMACEUTICAL CO., LTD.
公开号:EP1142880A1
公开(公告)日:2001-10-10
The present invention provides novel benzimidazole derivatives of the following formula (I) and salts thereof:
wherein R1 represents a lower alkyl group or a lower alkyloxy-lower alkyl group: R2 represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 8 carbon atoms, an aryl group, and such; R3 represents a lower alkyl group, a lower alkenyl group, an aryl group, a lower alkylaryl group, an aryl-lower alkenyl group, a halothienyl group, a lower alkylamino group, or an aryl-lower alkylamino group; A represents a benzene ring, a naphthalene ring, or a pyridine ring; and X represents a halogen atom. The derivatives and their salts have blood sugar level-depressing activity or PDE5-inhibiting activity, and are useful as pharmaceutical preparations.
本发明提供了下式(I)的新型苯并咪唑衍生物及其盐类:
其中 R1 代表低级烷基或低级烷氧基-低级烷基:R2代表氢原子、卤素原子、具有1至8个碳原子的烷基、芳基等;R3代表低级烷基、低级烯基、芳基、低级烷芳基、芳基-低级烯基、卤代噻吩基、低级烷氨基或芳基-低级烷氨基;A代表苯环、萘环或吡啶环;X代表卤素原子。这些衍生物及其盐类具有降低血糖水平的活性或 PDE5 抑制活性,可用作药物制剂。