二碘甲烷

3-(3,4-dimethoxyphenyl)-6,7-dihydroxy-4H-chromen-4-one

2-(3,4-dimethoxyphenyl)-1-(2,3,4-trihydroxyphenyl)ethanone

2'-hydroxy-4',5'-dibenzyloxy-3,4-dimethoxychalkone

2',4',5'-tribenzyloxy-3,4-dimethoxychalkone