6,6-二甲基-1,4-二噁螺[4.5]-7-癸酮

6-甲基-5-氧代庚酸

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

乙基6-甲基-5-氧代庚酸酯

2,2-dimethyl-3-phenylcyclohex-3-en-1-one