| 摘要 |
A compound having the formula (I): wherein R1 is hydrogen, lower alkyl, lower alkenyl, lower or higher alkynyl, cyclo(lower)alkyl, cyclo(higher)alkyl, cyclo(lower)alkyl(lower)alkyl, cyclo(higher)alkyl(lower)alkyl, cyclo(lower)alkenyl(lower)alkyl, aryl-fused cyclo(lower)alkyl, lower alkoxy, acyl, aryl, ar(lower)alkoxy, ar(lower)alkyl, heteroar(lower)alkyl, amino, heteroaryl, heterocyclyl or heterocyclyl(lower)alkyl, which may be substituted with one or more suitable substituent(s), R2 is hydrogen or lower alkyl, X is arylene, heterorarylene, cycloalkylene, heterocycloalkylene or aryl-fused cycloalkene, Y is arylene, heteroarylene, which may be substituted with one or more suitable substituent(s), Z lower alenylene, which may be substituted with lower alkyl or halogen, or a salt thereof. The compound is useful as a histone deacetylase inhibitor.
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