N'-benzylidene-5-hydroxy-2-methyl-1-(7-methyl-2-oxo-2H-chromen-6-yl)-1H-indole-3-carbohydrazide 、
巯基乙酸 在
zinc(II) chloride 作用下,
以
1,4-二氧六环 为溶剂,
以73%的产率得到5-hydroxy-2-methyl-1-(7-methyl-2-oxo-2H-chromen-6-yl)-N-(4-oxo-2-phenylthiazolidin-3-yl)-1H-indole-3-carboxamide