Journal
BIOORGANIC & MEDICINAL CHEMISTRY
Volume 11, Issue 1, Pages 35-41Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0968-0896(02)00423-6
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A series of 5-substituted oxazolidinones with varying substitution at the 5-position of the oxazolidinone ring were synthesized and their in vitro antibacterial activity was evaluated. The compounds demonstrated potent to weak antibacterial activity. A novel compound (PH-027) demonstrated potent antibacterial activity, which is comparable to or better than those of linezolid and vancomycin against antibiotic-susceptible standard and clinically isolated resistant strains of gram-positive bacteria. Although the presence of the C-5-acetamidomethyl functionality at the C-5 position of the oxazolidinones has been widely claimed and reported as a structural requirement for optimal antimicrobial activity in the oxazolidinone class of compounds, our results from this work identified the C-5 triazole substitution as a new structural alternative for potent antibacterial activity in the oxazolidinone class. (C) 2002 Elsevier Science Ltd. All rights reserved.
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