申请人:Boehringer Mannheim GmbH
公开号:US04670439A1
公开(公告)日:1987-06-02
The present invention provides 2H-1-benzopyran-2-one derivatives of the general formula: ##STR1## wherein either R.sub.1 is a lower alkyl radical, optionally substituted by phenyl, which can be substituted by lower alkyl, lower alkoxy, hydroxyl or halogen, and R.sub.2 is trifluoromethyl, cyano, hydroxymethyl, alkoxymethyl, acyloxymethyl, halogenomethyl, aminomethyl, mono- or dialkylaminomethyl, acyl, carboxyl, alkoxycarbonyl or carbamoyl, which can be mono- or disubstituted by lower alkyl; or R.sub.1 is trifluoromethyl, cyano, hydroxymethyl, alkoxymethyl, acyloxymethyl, halogenomethyl, aminomethyl, mono- or dialkylaminomethyl, acyl, carboxyl, alkoxycarbonyl or carbamoyl, which can be mono- or disubstituted by lower alkyl, and R.sub.2 is a lower alkyl radical, optionally substituted by phenyl, which can be substituted by lower alkyl, lower alkoxy, hydroxyl or halogen, and R.sub.3 is a phenyl or benzyl radical which can be substituted by lower alkyl, lower alkoxy, hydroxyl or halogen; and the pharmacologically acceptable salts thereof. The present invention also provides processes for the preparation of these 2H-1-benzopyran-2-one derivatives and pharmaceutical compositions containing them.
本发明提供了通式如下的2H-1-苯并吡喃-2-酮衍生物:##STR1## 其中R.sub.1是较低的烷基基团,可选择地被苯基取代,该苯基可被较低的烷基,较低的烷氧基,羟基或卤素取代;R.sub.2是三氟甲基,氰基,羟甲基,烷氧甲基,酰氧甲基,卤代甲基,氨基甲基,单或二烷基氨基甲基,酰基,羧基,烷氧羰基或氨基甲酰基,可被较低的烷基单或双取代;或R.sub.1是三氟甲基,氰基,羟甲基,烷氧甲基,酰氧甲基,卤代甲基,氨基甲基,单或二烷基氨基甲基,酰基,羧基,烷氧羰基或氨基甲酰基,可被较低的烷基单或双取代,而R.sub.2是较低的烷基基团,可选择地被苯基取代,该苯基可被较低的烷基,较低的烷氧基,羟基或卤素取代,R.sub.3是苯基或苄基基团,可被较低的烷基,较低的烷氧基,羟基或卤素取代;以及其药学上可接受的盐。本发明还提供了制备这些2H-1-苯并吡喃-2-酮衍生物的方法和含有它们的制药组合物。