Synthesis and activity of polyacetylene substituted 2-hydroxy acids, esters, and amides against microbes of clinical importance
                                
                                    
                                        作者:Stella Kyi、Nalin Wongkattiya、Andrew C. Warden、Michael S. O’Shea、Margaret Deighton、Ian Macreadie、Florian H.M. Graichen                                    
                                    
                                        DOI:10.1016/j.bmcl.2010.06.020
                                    
                                    
                                        日期:2010.8
                                    
                                    A series of novel polyacetylene substituted 2-hydroxy acids and derivatives were prepared and characterized. Alkylation of butane-2,3-diacetal (BDA) protected glycolic acid with iodoalkyl substituted polyacetylene compounds gave the corresponding diacetal protected polyacetylene substituted 2-hydroxy acids. Diacetal deprotection through acid mediated hydrolysis, transesterification or aminolysis afforded the 2-hydroxy-polyacetylenic acid, ester or amide derivatives. Twenty one of these novel compounds were tested against 10 microbes of clinical importance and several of them showed good antimicrobial activity, in particular against Pseudomonas aeruginosa. Crown Copyright (C) 2010 Published by Elsevier Ltd. All rights reserved.