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J Enzyme Inhib Med Chem. 2013 Apr;28(2):350-9. doi: 10.3109/14756366.2012.727410. Epub 2012 Nov 1.

More effective dithiocarbamate derivatives inhibiting carbonic anhydrases, generated by QSAR and computational design.

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1
Department of Anatomy, Animal Physiology and Biophysics, Faculty of Biology, University of Bucharest, Romania.

Abstract

Dithiocarbamates (DTC) are promising compounds with potential applications in antitumoral and glaucoma therapy. Our aim is to understand molecular features affecting DTC interaction with carbonic anhydrases (CAs), zinc-containing enzymes maintaining acid-base balance in blood and other tissues. To this end, we generate QSAR models based on a compound series containing 25 DTC, inhibitors of four human (h) CAs isoforms: hCA I, II, IX and XII. We establish that critical physicochemical parameters for DTC inhibitory activity are: hydrophobic, electronic, steric, topological and shape. The predictive power of our QSAR models is indicated by significant values of statistical coefficients: cross-validated correlation q(2) (0.55-0.73), fitted correlation r(2) (0.75-0.84) and standard error of prediction (0.47-0.23). Based on the established QSAR equations, we analyse 22 new DTC derivatives and identify DTC dicarboxilic acids derivatives and their esters as potentially improved inhibitors of CA I, II, IX and XII.

PMID:
23116520
DOI:
10.3109/14756366.2012.727410
[Indexed for MEDLINE]

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