聚合甲醛 、
(3Z)-5-methyl-1H-indole-2,3-dione 3-(N-methoxy thiosemicarbazone) 、
加替沙星 以46.09%的产率得到1-cyclopropyl-6-fluoro-7-[3-methyl-4-{[5-methyl-3-((Z)-2-{[(methyloxy)amino]carbothioyl}hydrazono)-2-oxo-1H-indol-1(2H)-yl]methyl}tetrahydropyrazin-1(2H)-yl]-8-(methyloxy)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid