6,7-difluoro-4-oxo-1-(4-trifluoromethyl-benzyl)-1,4-dihydro-quinoline-3-carbonitrile 、
硫代吗啉 以gave 6-fluoro-4-oxo-7-thiomorpholin-4-yl-1-(4-trifluoromethyl-benzyl)-1,4-dihydro-quinoline-3-carbonitrile的产率得到6-fluoro-4-oxo-7-thiomorpholin-4-yl-1-(4-trifluoromethyl-benzyl)-1,4-dihydro-quinoline-3-carbonitrile