Lemefloxacin

8-Desfluorolomefloxacin

1-Ethyl-6-fluoro-1,4-dihydro-7-(3-methyl-1-piperazinyl)-4-oxo-3-quinolinecarboxylic acid

1-Ethyl-6-fluoro-1,4-dihydro-4-oxo-7-(3-methyl-1-piperazinyl)quinoline-3-carboxylic acid

1-Ethyl-4-oxo-6-fluoro-7-(3-methyl-1-piperazinyl)-1,4-dihydroquinoline-3-carboxylic acid

1-Ethyl-6-fluoro-7-(3-methyl-1-piperazinyl)-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid