(2R,4R)-4-(4-fluoro-2-methoxy-3-methylphenyl)-2-hydroxy-2-(trifluoromethyl)hexanal 、
5-amino-8-fluoro-quinolin-2(1H)-one 在
titanium(IV) tetrabutoxide 作用下,
以to give 8-fluoro-5-{[(2R,4R)-4-(4-fluoro-2-methoxy-3-methylphenyl)-2-hydroxy-2-(trifluoromethyl)hexylidene]amino}quinolin-2(1H)-one的产率得到8-fluoro-5-{[(2R,4R)-4-(4-fluoro-2-methoxy-3-methylphenyl)-2-hydroxy-2-(trifluoromethyl)hexylidene]amino}quinolin-2(1H)-one