Studies on pyridonecarboxylic acids. 2. Synthesis and antibacterial activity of 8??substituted??7??fluoro??5??oxo??5H??thiazolo [3, 2??a] quinoline??4??carboxylic acids

J Segawa, M Kitano, K Kazuno, M Tsuda…

Index: Segawa; Kitano; Kazuno; Tsuda; Shirahase; Ozaki; Matsuda; Kise Journal of Heterocyclic Chemistry, 1992 , vol. 29, # 5 p. 1117 - 1123

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Citation Number: 13

Abstract

Abstract A series of 8-substituted-7-fluoro-5-oxo-5H-thiazolo [3, 2-a] quinoline-4-carboxylic acids was prepared and evaluated for antibacterial activity. These compounds were synthesized from ethyl 2-mercaptoquinoline-3-carboxylates 17 which were obtained from anilines 11 by a route involving an intramolecular cyclization reaction.