6-hydroxy-3-((2-(7-methyl-2-oxo-2H-chromen-6-yl)hydrazineylidene)methyl)-2H-chromen-2-one 、
benzohydroximoyl chloride 在
三乙胺 作用下,
以
氯仿 为溶剂,
反应 4.25h,
以69%的产率得到6-hydroxy-3-[4-[(7-methyl-2-oxochromen-6-yl)amino]-3-phenyl-5H-1,2,4-oxadiazol-5-yl]chromen-2-one