2-[2-[7-hydroxy-1-(4-methylphenyl)-5-sulfanylidene-6H-pyrazolo[4,3-d]pyrimidin-3-yl]-1,3-thiazol-4-yl]benzo[f]chromen-3-one 、
ethyl (phenylhydrazono)chloroacetate 在
三乙胺 作用下,
以
氯仿 为溶剂,
反应 10.0h,
以75%的产率得到Ethyl 4-(4-methylphenyl)-2-oxo-6-[4-(3-oxobenzo[f]chromen-2-yl)-1,3-thiazol-2-yl]-10-phenyl-1,4,5,8,10,11-hexazatricyclo[7.3.0.03,7]dodeca-3(7),5,8,11-tetraene-12-carboxylate