6,7-difluoro-1-(2-fluoro-4-trifluoromethyl-benzyl)-4-oxo-1,4-dihydro-quinoline-3-carbonitrile 、
2-哌嗪酮 以gave 6-fluoro-1-(2-fluoro-4-trifluoromethyl-benzyl)-4-oxo-7-(3-oxo-piperazin-1-yl)-1,4-dihydro-quinoline-3-carbonitrile的产率得到6-fluoro-1-(2-fluoro-4-trifluoromethyl-benzyl)-4-oxo-7-(3-oxo-piperazin-1-yl)-1,4-dihydro-quinoline-3-carbonitrile