Indapamide-like benzenesulfonamides as inhibitors of carbonic anhydrases I, II, VII, and XIII
作者:Edita Čapkauskaitė、Lina Baranauskienė、Dmitrij Golovenko、Elena Manakova、Saulius Gražulis、Sigitas Tumkevičius、Daumantas Matulis
DOI:10.1016/j.bmc.2010.09.016
日期:2010.11
A series of novel 2-chloro-5-[(1-benzimidazolyl- and 2-benzimidazolylsulfanyl) acetyl] benzene-sulfonamides were designed and synthesized. Their binding to recombinant human carbonic anhydrase (hCA)isozymes I, II, VII, and XIII was determined by isothermal titration calorimetry and thermal shift assay. The designed S-alkylated benzimidazole derivatives exhibited stronger binding than the indapamide-like N-alkylated benzimidazoles, with the K-d reaching about 50-100 nM with drug-targeted hCAs VII and XIII. The cocrystal structures of selected compounds with hCA II were determined by X-ray crystallography, and structural features of the binding event were revealed. (C) 2010 Elsevier Ltd. All rights reserved.