期刊
BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
卷 22, 期 18, 页码 5801-5806出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bmcl.2012.07.094
关键词
CA inhibitors; CA I isoform; Carboxylic acids/carboxylates; Metal complexes; 5-(1-Alyl-1H-indol-3-yl)-1H-pyrazole-3-carboxylicacids; (Z)-Methyl 2-hydroxy-2-(2-oxo-1-substituted-indolin-3-ylidene)acetates
资金
- Fondazione Banco di Sardegna
- Metoxia (European 7th framework programme)
The members of a focused series of carboxylic acids and of their derivatives (esters, amides and metal complexes) have been investigated as inhibitors of the main cytosolic/transmembrane carbonic anhydrase isoforms, CA I, II, IX and XII, belonging to the mammalian alpha-class of CAs. These enzymes are present in red blood cells in submillimolar concentration, and typical sulfonamide CA inhibitors do not selectively inhibit any of them. Among such isozymes, the isoform-I is an 'orphan' target that mediates hemorrhagic retinal and cerebral vascular permeability, involved in retinal and cerebral disease. In the present study, we identified the first selective CA I nanomolar inhibitors, that displayed activity against other isozymes in micromolar/millimolar concentration range. Selective CA II over CA I inhibition has also been observed with some diketo acids/metal complexes. Few diketo acid derivatives showed inhibition activities against the fungal beta-class enzymes from Candida albicans and Cryptococcus neoformans in low micromolar concentration range. Prediction of drug-like properties for the most interesting compounds suggests a favorable bioavailability. (C) 2012 Elsevier Ltd. All rights reserved.
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