7-hydroxy-2-(2-hydroxyphenyl)-2,3-dihydrochromen-4-one

1-(5,8-dimethoxy-2,2-dimethylchromen-6-yl)ethanone

黄腐酚

3',6'-dihydroxyspiro[oxolane-5,9'-xanthene]-2-one

7-羟基-2-甲基-4H-1-苯并吡喃-4-酮