7-(benzyl(methyl)amino)-1-butyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
1-butyl-7-(4-carbamoylpiperidin-1-yl)-6-fluoro-N-(4-methoxybenzyl)-4-oxo-1,4-1,4-dihydroquinoline-3-carboxamide
N-benzyl-1-butyl-7-(4-carbamoylpiperidin-1-yl)-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxamide
1-butyl-7-(4-carbamoylpiperidin-1-yl)-6-fluoro-N-(4-methoxy-3-nitrobenzyl)-4-oxo-1,4-dihydroquinoline-3-carboxamide
1-butyl-7-(4-carbamoylpiperidin-1-yl)-6-fluoro-N-(4-hydroxybenzyl)-4-oxo-1,4-dihydroquinoline-3-carboxamide