重氮甲烷

1-(2,6-dihydroxy-3,4-dimethoxy-phenyl)-2-methoxy-ethanone

1-(3,6-dihydroxy-2,4-dimethoxyphenyl)-2-methoxyethanone

2,3-dihydro-2-(4-methoxyphenyl)-5,6,7-trimethoxy-4H-1-benzopyran-4-one

3-hydroxy-5,6,7,4'-tetramethoxymethoxyflavone