Benzofuran-derived benzylpyridinium bromides as potent acetylcholinesterase inhibitors
作者:Farzaneh Baharloo、Mohammad Hossein Moslemin、Hamid Nadri、Ali Asadipour、Mohammad Mahdavi、Saeed Emami、Loghman Firoozpour、Razieh Mohebat、Abbas Shafiee、Alireza Foroumadi
DOI:10.1016/j.ejmech.2015.02.009
日期:2015.3
A series of benzofuran-based N-benzylpyridinium derivatives 5a-o were designed and synthesized as novel AChE inhibitors. The synthetic pathway of the compounds involved the preparation of 4-(benzofuran-2-yl)pyridine intermediates via the reaction of different salicylaldehyde derivatives and 4-(bromomethyl)pyridine, followed by intramolecular cyclization. Subsequently, the 4-(benzofuran-2-yl) pyridines were N-benzylated by using appropriate benzyl bromide to afford the final product 5a-o. The results of in vitro AChE activity evaluation of synthesized compounds revealed that all compound had potent anti-AChE activity comparable or more potent than standard drug donepezil. The N-(3,5-dimethylbenzyl) derivative 5e with IC50 value of 4.1 nM was the most active compound, being 7-fold more potent than donepezil. (C) 2015 Elsevier Masson SAS. All rights reserved.