申请人:FUJISAWA PHARMACEUTICAL CO
公开号:WO2000018741A2
公开(公告)日:2000-04-06
A compound of formula (I), wherein R1 is halo(lower)alkyl, halogen or cyano, R2 is aryl optionally substituted with substituent(s) selected from the group consisting of halogen, lower alkoxy, cyano, nitro, lower alkenyl, amino, acyl and hydroxyimino, R3 is hydrogen, hydroxy, acyloxy, lower alkoxy optionally substituted with lower alkoxy, amino optionally substituted with hydroxy or lower alkyl, lower alkylthio, or lower alkylsulfonyl, R4 is hydrogen or halogen, Q is pyrazolyl, A is lower alkylene optionally substituted with oxo or hydroxy, and n is 0, 1 or 2, provided that when R3 is hydrogen, R2 is aryl substituted with lower alkenyl or A is lower alkylene substituted with oxo, or its salt, processes for their preparation and pharmaceutical compositions.