The present invention provides compounds represented by general formula (I):
or pharmaceutical acceptable salts thereof, wherein R
1
and R
2
are each hydrogen, lower acyl, lower alkoxycarbonyl or the like; R
3
is halo-lower alkyl, lower acyl, halo-lower alkylcarbonyl, cycloalkylcarbonyl, optionally substituted arylcarbonyl, lower alkoxycarbonyl or the like; R
4
is lower alkyl, halo-lower alkyl, cycloalkyl, lower alkoxy-lower alkyl or the like, which exhibit potent COMT inhibitory activities. The present invention also provides pharmaceutical compositions containing said compound, and uses thereof.
本发明提供了由一般式(I)表示的化合物或其药物可接受的盐,其中R1和R2分别为
氢、低酰基、低烷
氧羰基或类似物;R3为卤素-低烷基、低酰基、卤素-低烷基羰基、
环烷基羰基、可选取代芳基羰基、低烷
氧羰基或类似物;R4为低烷基、卤素-低烷基、
环烷基、低烷
氧-低烷基或类似物,具有强大的CO
MT抑制活性。本发明还提供了含有该化合物的药物组合物及其用途。