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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 33, Number 2
BKCSDE 33(2)
February 20, 2012 

Synthesis and Biological Evaluation of N-(Aminopyridine) Benzamide Analogues as Histone Deacetylase Inhibitors
Qing-Wei Zhang, Jian-Qi Li *
N-(Aminopyridine) benzamide, HDAC inhibition, Anticancer activity
A series of benzamide-based histone deacetylases (HDACs) inhibitors possessing N-(aminopyridine) residue as the zinc binding site of HDAC were synthesized and evaluated. Among these derivatives, compounds with N-(2-amino-4-pyridine) benzamide moiety have been found as the most potent ones. Moreover, introduction of appropriate substituents on the terminal aryl group acting as the surface-recognition domain could significantly improve the antiproliferative activity. In particular, the compound 4k possessed favorable pharmacokinetic characteristics and exhibited potent antitumor activity on xenograft model in mice at well tolerated doses, thus suggesting a good therapeutic index.
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