2-(2,2-diphenyl-1,3-benzodioxol-5-yl)-3,5,7-trihydroxychromen-4-one

3-(benzyloxy)-2-(2,2-diphenylbenzo[d][1,3]dioxol-5-yl)-5,7-dihydroxy-4H-chromen-4-one

重氮甲烷

3,4-bis-benzoyloxy-benzoic acid-anhydride

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