1-butyl-7-hydroxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

1-cyclopentyl-7-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

ethyl 1-cyclopentyl-7-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylate

methyl 2-(3-(1-benzyl-7-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxamido)propoxy)-6-hydroxybenzoate

1-ethyl-1,4-dihydro-7-fluoro-4-oxoquinoline-3-carboxylic acid