Abstract
A series of 2-(hydrazinocarbonyl)-3-substituted-phenyl-1H-indole-5-sulfonamides possessing various 2-, 3- or 4- substituted phenyl groups with methyl-, halogeno- and methoxy- functionalities, as well as the perfluorophenyl moiety have been synthesized and evaluated as inhibitors of both α- and β-class carbonic anhydrases (CAs, EC 4.2.1.1). All human isoforms with medicinal chemistry applications were included in such studies, among which CA I, II, VA, VB, VII, IX and XII. Several low nanomolar, sometimes isoformselective compounds were thus detected. Two β-CAs from the pathogenic bacterium Mycobacterium tuberculosis encoded by the genes Rv1284 Rv3588c were also highly inhibited (sometimes in the sub-nanomolar range) by some pyridinium derivatives incoprorating this scaffold, obtained from the corresponding 2-(hydrazinocarbonyl)-3-substituted-phenyl-1H-indole-5-sulfonamides by reaction with pyrylium salts. The fungal β-CAs from Candida albicans (Nce103) and Cryptococcus neoformans (Can2) were also investigated for their inhibition with this family of sulfonamides and some highly effective inhibitors detected. As the X-ray crystal structure of one such sulfonamide with the human isoform CA II is also known, the 3-substituted-phenyl-1H-indole-5-sulfonamides represent a totally new class of inhibitors obtained by structure-based drug design, which show efficiency in inhibiting both α- and β-CAs from several species.
Keywords: Carbonic anhydrase, sulfonamide inhibitor, scaffold, isoform-selective inhibitor, indole-5-sulfonamide, mycobacterium tuberculosis, Candida albicans, Cryptococcus neoformans, sulfonamides, diuretics, antiglaucoma drugs, antiobesity, anticancer, antiinfective drugs, chemo, ethoxzolamide, dichlorophenamide, ethyl 2-benzylacetoacetate, perfluorophenyl moiety, hepatocytes, Structureactivity relationship (SAR), hypoxic tumors, chemotherapeutic agents, indolesulfonamide scaffold
Current Pharmaceutical Design
Title: 3-Phenyl-1H-Indole-5-Sulfonamides: Structure-Based Drug Design of a Promising Class of Carbonic Anhydrase Inhibitors
Volume: 16 Issue: 29
Author(s): Ozlen Guzel, Alessio Innocenti, Daniela Vullo, Andrea Scozzafava and Claudiu T. Supuran
Affiliation:
Keywords: Carbonic anhydrase, sulfonamide inhibitor, scaffold, isoform-selective inhibitor, indole-5-sulfonamide, mycobacterium tuberculosis, Candida albicans, Cryptococcus neoformans, sulfonamides, diuretics, antiglaucoma drugs, antiobesity, anticancer, antiinfective drugs, chemo, ethoxzolamide, dichlorophenamide, ethyl 2-benzylacetoacetate, perfluorophenyl moiety, hepatocytes, Structureactivity relationship (SAR), hypoxic tumors, chemotherapeutic agents, indolesulfonamide scaffold
Abstract: A series of 2-(hydrazinocarbonyl)-3-substituted-phenyl-1H-indole-5-sulfonamides possessing various 2-, 3- or 4- substituted phenyl groups with methyl-, halogeno- and methoxy- functionalities, as well as the perfluorophenyl moiety have been synthesized and evaluated as inhibitors of both α- and β-class carbonic anhydrases (CAs, EC 4.2.1.1). All human isoforms with medicinal chemistry applications were included in such studies, among which CA I, II, VA, VB, VII, IX and XII. Several low nanomolar, sometimes isoformselective compounds were thus detected. Two β-CAs from the pathogenic bacterium Mycobacterium tuberculosis encoded by the genes Rv1284 Rv3588c were also highly inhibited (sometimes in the sub-nanomolar range) by some pyridinium derivatives incoprorating this scaffold, obtained from the corresponding 2-(hydrazinocarbonyl)-3-substituted-phenyl-1H-indole-5-sulfonamides by reaction with pyrylium salts. The fungal β-CAs from Candida albicans (Nce103) and Cryptococcus neoformans (Can2) were also investigated for their inhibition with this family of sulfonamides and some highly effective inhibitors detected. As the X-ray crystal structure of one such sulfonamide with the human isoform CA II is also known, the 3-substituted-phenyl-1H-indole-5-sulfonamides represent a totally new class of inhibitors obtained by structure-based drug design, which show efficiency in inhibiting both α- and β-CAs from several species.
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Cite this article as:
Guzel Ozlen, Innocenti Alessio, Vullo Daniela, Scozzafava Andrea and T. Supuran Claudiu, 3-Phenyl-1H-Indole-5-Sulfonamides: Structure-Based Drug Design of a Promising Class of Carbonic Anhydrase Inhibitors, Current Pharmaceutical Design 2010; 16 (29) . https://dx.doi.org/10.2174/138161210793429805
DOI https://dx.doi.org/10.2174/138161210793429805 |
Print ISSN 1381-6128 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4286 |
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