摘要:
We have identified a series of diphenylmethylene hydroxamic acids as novel and selective HDAC class IIa inhibitors. The original hit, N-hydroxy-2,2-diphenylacetamide (6), has sub-micromolar class IIa HDAC inhibitory activity, while the rigidified oxygen analogue, N-hydroxy-9H-xanthene-9-carboxamide (13), is slightly more selective for HDAC7 with an IC50 of 0.05 mu M. Substitution of 6 allows for the modulation of selectivity and potency amongst the class IIa HDAC isotypes. (C) 2009 Elsevier Ltd. All rights reserved.