7-hydroxy-2-(3,4,5-trimethoxyphenyl)chromen-4-one

6-acetyl-7-hydroxy-2-phenyl-3,4-dihydro-2H-1-benzopyran

1-(5-hydroxy-2-phenyl-3,4-dihydro-2H-chromen-6-yl)ethanone

methyl 7-hydroxy-4-oxochromene-2-carboxylate

4-[1-(benzylamino)ethylidene]-3-hydroxycyclohexa-2,5-dien-1-one