5-O,6-O-dibenzyl 2-O,9-O-dimethyl 1,10-dimethyl-13-oxo-11,12-diphenyl-5,6-diazapentacyclo[8.2.1.14,7.02,9.03,8]tetradec-11-ene-2,5,6,9-tetracarboxylate 在
palladium on activated charcoal 、
mercury(II) oxide 作用下,
以
乙酸乙酯 为溶剂,
生成
dimethyl 3,6-dimethyl-4,5-diphenylphthalate