马来酸酐 、
2-((4,9-dimethoxy-5-oxo-5H-furo[3,2-g]chromen-6-yl)methylene)-N-methylhydrazinecarbothioamide 以
溶剂黄146 为溶剂,
反应 12.0h,
以50%的产率得到2-(2-(((4,9-dimethoxy-5-oxo-5H-furo[3,2-g]chromen-6-yl)methylene)hydrazono)-3-methyl-4-oxo-1,3-thiazolidin-5-yl)acetic acid