5,6,3′-trihydroxy-3,7,4′-trimethoxyflavonol
acetic anhydride
2-(3-benzyloxy-4-methoxy-phenyl)-6-hydroxy-3,5,7-trimethoxy-chromen-4-one
2-(3-benzyloxy-4-methoxy-phenyl)-6-hydroxy-3,7-dimethoxy-chromen-4-one
6-hydroxy-2-(3-hydroxy-4-methoxyphenyl)-3,5,7-trimethoxychromen-4-one