Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
ISSN-L : 0009-2363
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Structure-Activity Relationship (SAR) Studies on Oxazolidinone Antibacterial Agents. 1. Conversion of 5-Substituent on Oxazolidinone
Ryukou TOKUYAMAYoshiei TAKAHASHIYayoi TOMITATomio SUZUKIToshihiko YOSHIDANobuhiko IWASAKINoriyuki KADOEiichi OKEZAKIOsamu NAGATA
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2001 Volume 49 Issue 4 Pages 347-352

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Abstract

A structure-activity relationship (SAR) study on 5-substituted oxazolidinones as an antibacterial agent is described. The oxazolidinones, of which 5-acetylaminomethyl moiety was converted into other functions, were prepared and evaluated for antibacterial activity. Elongation of the methylene chain (8) and conversion of the acetamido moiety into guanidino moiety (12) decreased the antibacterial activity. The replacement of carbonyl oxygen (=O) by thiocarbonyl sulfur (=S) enhanced in vitro antibacterial activity. Especially, compound 16, which had the 5-thiourea group, showed 4-8 stronger in vitro activity than linezolid. Our SAR study revealed that the antibacterial activity was greatly affected by the conversion of 5-substituent.

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© 2001 The Pharmaceutical Society of Japan
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