1,3-茚满二酮

苯甲醛

2-[(4,4-dimethyl-2,6-dioxocyclohexyl)-phenylmethyl]-5,5-dimethylcyclohexane-1,3-dione

3-acetyl-2-methyl-4-phenyl-1,4-dihydroindeno[1,2-b]pyridin-5-one

2-(3-oxo-1-phenylbutyl)indene-1,3-dione