期刊
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
卷 79, 期 -, 页码 216-230出版社
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.ejmech.2014.04.019
关键词
3,4-Dihydro-2(1H)-quinolinone; Sigma-1 receptor; Antagonist; Analgesic
The synthesis and sigma-1 receptor (sigma R-1) antagonist activity of a new series of 3,4-dihydro-2(1H)-quinolinone derivatives are reported. The new compounds were evaluated in vitro in sigma-1 and sigma-2 receptor-binding assays in guinea pig brain membranes. The structure activity relationship led us to the promising derivative 7-(3-(piperidin-l-yl)propoxy)-1-(4-fluorobenzyI)-3,4-dihydro-2(1H)-quinolinone (35). The compounds with highest affinity and greatest selectivity were further profiled, and compound 35 had a high binding constant for sigma-1 receptor (Ki sigma(1) = 1.22 nM) and high sigma-1/2 selectivity (1066-fold). Thus, compound 35, which proved to be an antagonist of sigma-1 receptor, emerged as the most interesting candidate. In addition, compound 35 exerted dose-dependent anti-nociceptive effects in the formalin test. These characteristics suggested that the potent and selective compound 35 could be a potent candidate for pain treatment. (c) 2014 Elsevier Masson SAS. All rights reserved.
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