Novel and potent oxazolidinone antibacterials featuring 3-indolylglyoxamide substituents
作者:Mohamed Takhi、Gurpreet Singh、C. Murugan、Nirvesh Thaplyyal、Soma Maitra、K.M. Bhaskarreddy、P.V.S. Amarnath、Arundhuti Mallik、T. Harisudan、Ravi Kumar Trivedi、K. Sreenivas、N. Selvakumar、Javed Iqbal
DOI:10.1016/j.bmcl.2008.03.043
日期:2008.9
Novel oxazolidinone antibacterials bearing a variety of 3-indolylglyoxamide substituents have been explored in an effort to improve the spectrum and potency of this class of agents. A subclass of this series was also made with the diversity at C-5 terminus. These derivatives have been screened against a panel of clinically relevant Gram-positive pathogens and fastidious Gram-negative organisms. Several analogs in this series were identified with in vitro activity superior to linezolid ( MIC = 0.25-2 mu g/ mL). Compounds 10a, 10c, 10e and 10f displayed activity against linezolid resistant Gram-positive organisms (MIC = 2-4 mu g/ mL). Selected oxazolidinones were evaluated for in vivo efficacy against a mouse systemic infection model. (C) 2008 Elsevier Ltd. All rights reserved.