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Bioorg Med Chem Lett. 2008 Jun 1;18(11):3456-61. doi: 10.1016/j.bmcl.2008.02.026. Epub 2008 Feb 14.

2-Trifluoroacetylthiophenes, a novel series of potent and selective class II histone deacetylase inhibitors.

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IRBM/Merck Research Laboratories, Via Pontina km 30,600, 00040 Pomezia, Italy.


The identification of class II HDAC inhibitors has been hampered by lack of efficient enzyme assays, in the preceding paper two assays have been developed to improve the efficiency of these enzymes: mutating an active site histidine to tyrosine, or by the use of a trifluoroacetamide lysine substrate, allowing screening to identify class II HDAC inhibitors. Herein, 2-trifluoroacetylthiophenes have been demonstrated to inhibit class II HDACs, resulting in the development of a series of 5-(trifluoroacetyl)thiophene-2-carboxamides as novel, potent and selective class II HDAC inhibitors. X-ray crystal structures of the HDAC 4 catalytic domain with a bound inhibitor demonstrate these compounds are active site inhibitors and bind in their hydrated form.

[Indexed for MEDLINE]

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