N-benzyl-1-butyl-6-fluoro-7-(morpholin-4-yl)-4-oxo-1,4-dihydroquinoline-3-carboxamide
N-benzyl-1-butyl-7-(dimethylamino)-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxamide
N-benzyl-1-butyl-6-fluoro-4-oxo-7-(piperidin-1-yl)-1,4-dihydroquinoline-3-carboxamide
1-butyl-7-(4-carbamoylpiperidin-1-yl)-6-fluoro-N-(4-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