2-((8-bromo-7-hydroxy-5-methoxy-2-methyl-4-oxo-4H-chromen-6-yl)methylene)-N-(4-fluorophenyl)hydrazine-1-carbothioamide 、
氯乙酸 在
sodium acetate 作用下,
以
溶剂黄146 为溶剂,
反应 24.0h,
以70%的产率得到3-(p-fluorophenyl)-2-[(8-bromo-7-hydroxy-5-methoxy-2-methyl-4-oxo-4H-benzopyran-6-ylmethylene)-hydrazono]-thiazolidin-4-one