Discovery of anxiolytic 2-ferrocenyl-1,3-thiazolidin-4-ones exerting GABAA receptor interaction via the benzodiazepine-binding site
作者:Anka Pejović、Marija S. Denić、Dragana Stevanović、Ivan Damljanović、Mirjana Vukićević、Kalina Kostova、Maya Tavlinova-Kirilova、Pavle Randjelović、Nikola M. Stojanović、Goran A. Bogdanović、Polina Blagojević、Matthias D'hooghe、Niko S. Radulović、Rastko D. Vukićević
DOI:10.1016/j.ejmech.2014.05.062
日期:2014.8
Herein, we report on the synthesis, spectral, crystallographic and electrochemical properties of a small library of N-substituted 2-ferrocenyl-1,3-thiazolidin-4-ones, designed as novel GABA(A) benzodiazepine-binding site ligands. The anxiolytic properties of the title compounds were evaluated in several different in vivo models, whereas the involvement of the GABAA receptor complex in the activity of the most potent compound, 2-ferrocenyl-3-(4-methoxyphenylethyl)-1,3-thiazolidin-4-one, was inferred from experiments with known GABA(A)-targeting agents. Ligand docking experiments revealed that the high, dose-dependent, anxiolytic activity of the new compounds might be due to their favorable interactions with the benzodiazepine-binding site of the GABA(A) receptor complex. The incorporation of the ferrocene core and fine tuning of the distance between the thiazolidinone core and an additional aromatic ring were judged to be crucial structural requirements for the observed anxiolytic effect. (C) 2014 Elsevier Masson SAS. All rights reserved.