4-Alkyl and 4,4′-dialkyl 1,2-bis(4-chlorophenyl)pyrazolidine-3,5-dione derivatives as new inhibitors of bacterial cell wall biosynthesis
作者:Kristina M.K. Kutterer、Jamie M. Davis、Guy Singh、Youjun Yang、William Hu、Anatoly Severin、Beth A. Rasmussen、Girija Krishnamurthy、Amedeo Failli、Alan H. Katz
DOI:10.1016/j.bmcl.2005.03.058
日期:2005.5
Over 195 4-alkyl and 4,4-dialkyl 1,2-bis(4-chlorophenyl)pyrazolidine-3,5-dione derivatives were synthesized, utilizing microwave accelerated synthesis, for evaluation as new inhibitors of bacterial cell wall biosynthesis. Many of them demonstrated good activity against MurB in vitro and low MIC values against Gram-positive bacteria, particularly penicillin-resistant Streptococcus pneumoniae (PRSP). Derivative 71 demonstrated antibacterial activity against both Gram-positive and Gram-negative bacteria. Derivatives 7f and 10a also demonstrated potent nanomolar K(d) values in their binding to MurB. (c) 2005 Elsevier Ltd. All rights reserved.