5-hydroxy-3-(4-hydroxy-2,5-dimethoxyphenyl)-8,8-dimethyl-4H,8H-benzo<1,2-b:3,4-b'>dipyran-4-one

4',5-dihydroxy-2',5'-dimethoxy-2'',2''-dimethyldihydropyrano<6'',5''-h>isoflavone

3,4'-dihydroxy-2',5,5',6,7-pentamethoxyflavone