2-[cyclohexyl(hydroxy)methylidene]-5,5-dimethylcyclohexane-1,3-dione

3,3-dimethyl-2,4,5a,6,7,8-hexahydrodibenzofuran-1-one

2-氨基甲酰-5,5-二甲基-1,4-己二酮

2-(氯乙酰基)-3-羟基-5,5-二甲基-2-环己烯-1-酮

3-(ethylamino)-5,5-dimethylcyclohex-2-en-1-one