Process for the preparation of quinoline carboxylic acid derivatives
Process for the preparation of useful antimicorbial agents, 1-substituted-6-fluoro-7-(1-piperazinyl or 4-substituted-1-piperazinyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acids having the chemical structure [IV], STR1 wherein R1 is ethyl or vinyl group, and R4 is STR2 (R3 is hydrogen atom or lower alkyl group).
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(2008/06/13)
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