The compounds of formula (I), wherein ring D and ring E together form a fused ring system selected from formula (II), (III), (IV), (V), (VI), (VII), and the salts of these compounds are novel, effective inhibitors of histone deacetylases.
式(I)的化合物中,环D和环E共同形成由式(II)、(III)、(IV)、(V)、(VI)和(VII)所选择的融合环系统,这些化合物的盐是组蛋白
去乙酰化酶的新型有效
抑制剂。