Synthesis and biological evaluation of new glutamic acid-based inhibitors of MurD ligase
作者:Tihomir Tomašić、Nace Zidar、Veronika Rupnik、Andreja Kovač、Didier Blanot、Stanislav Gobec、Danijel Kikelj、Lucija Peterlin Mašič
DOI:10.1016/j.bmcl.2008.10.129
日期:2009.1
Mur ligases catalyze the biosynthesis of the UDP-MurNAc-pentapeptide precursor of peptidoglycan, an essential polymer of bacterial cell-wall. They constitute attractive targets for the development of novel antibacterial agents. Here we report on the synthesis of a series of 2,4-diaminoquinazolines, quinazoline-2,4(1H,3H)-diones, 5-benzylidenerhodanines and 5-benzylidenethiazolidine-2,4-diones and their inhibitory activities against MurD from Escherichia coli. Compounds (R)-27 and (S)-27 showed inhibitory activity against MurD with IC50 values of 174 and 206 mu M, respectively, which makes them promising starting points for optimization. (C) 2008 Elsevier Ltd. All rights reserved.