1-ethyl-6-fluoro-7-<<1-(benzyl)-4-piperidinyl>amino>-1,4-dihydro-4-oxoquinoline-3-carboxylic acid
1-ethyl-6-fluoro-1,4-dihydro-4-oxo-7-(1-piperazinyl)-3-quinoline carboxylic acid
AS 1842856
7-{N'-[4-Chloro-1-(4-fluoro-phenyl)-but-(E)-ylidene]-hydrazino}-1-ethyl-6-fluoro-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid