马来酸酐 、
2-((8-bromo-7-hydroxy-5-methoxy-2-methyl-4-oxo-4H-chromen-6-yl)methylene)-N-methylhydrazine-1-carbothioamide 在
sodium acetate 作用下,
以
溶剂黄146 为溶剂,
反应 24.0h,
以69%的产率得到3-methyl-2-{[(8-bromo-7-hydroxy-5-methoxy-2-methyl-4-oxo-4H-benzopyran-6-ylmethylene)-hydrazono]-4-oxo-thiazolidin-5-yl}-acetic acid