2-[4-[4,5-dimethoxy-1,3-dioxo-2-(2-oxopropyl)inden-2-yl]phenyl]-4,5-dimethoxy-2-(2-oxopropyl)indene-1,3-dione 、
sodium methylate 生成 1-[3-[4-(3-acetyl-1,4-dihydroxy-7,8-dimethoxynaphthalen-2-yl)phenyl]-1,4-dihydroxy-5,6-dimethoxynaphthalen-2-yl]ethanone