ethyl 8-[trifluoromethoxy]-6,7-difluoro-4-oxo-1-[4-(pyrrolidin-1-ylmethyl)phenyl]-1,4-dihydroquinoline-3-carboxylate 、
4-{[(2S)-2-methylpiperidin-1-yl]methyl}aniline 生成 ethyl 6,7-difluoro-1-(4-{[(2S)-2-methylpiperidin-1-yl]methyl}phenyl)-4-oxo-8-(trifluoromethoxy)-1,4-dihydroquinoline-3-carboxylate