聚合甲醛 、
(3Z)-5-chloro-1H-indole-2,3-dione 3-(N-hydroxy-thiosemicarbazone) 、
洛美沙星 以88.59%的产率得到7-[4-(5-chloro-3-{(Z)-2-[(hydroxyamino)carbothioyl]hydrazono}-2-oxo-2,3-dihydro-1H-indol-1-ylmethyl)-3-methylhexahydropyrazin-1-yl]-1-ethyl-6,8-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid