102402-47-1Relevant articles and documents
2H-1-benzopyran-2-one derivatives, processes for the preparation thereof and pharmaceutical compositions containing them
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, (2008/06/13)
The present invention provides 2H-1-benzopyran-2-one derivatives of the general formula: STR1 wherein either R1 is a lower alkyl radical, optionally substituted by phenyl, which can be substituted by lower alkyl, lower alkoxy, hydroxyl or halogen, and R2 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 R1 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 R2 is a lower alkyl radical, optionally substituted by phenyl, which can be substituted by lower alkyl, lower alkoxy, hydroxyl or halogen, and R3 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.
