2,3,9,10-tetramethoxy-5-hydroxy-6α-(3,4-dimethoxyphenyl)-7-(3,4-dimethoxybenzoyl)-5,6,7,15-tetrahydro-6-oxoniabenzanthracene 在
溶剂黄146 作用下,
以55%的产率得到1-(3,4-dimethoxybenzoyl)-2-(3,4-dimethoxyphenyl)-3-(2-formyl-4,5-dimethoxyphenyl)-6,7-dimethoxynaphthalene