1-(2-hydroxy-4,6-dimethoxyphenyl)-3-phenylpropane-1,3-dione

1-(5,7-dihydroxy-2,2-dimethylchromen-6-yl)ethanone

1-(5,7-dihydroxy-2,2-dimethyl-2H-chromen-8-yl)ethan-1-one

5,7-dihydroxy-4-oxochromene-2-carboxylic acid

1-(2,6-dihydroxy-4-phenylmethoxyphenyl)ethanone