3,3,6,6-tetramethyl-2,4,4a,5,7,8a,9,9a,10,10a-decahydroacridine-1,8-dione

5,5-dimethyl-2,2-diphenylcyclohexane-1,3-dione

5,5-dimethyl-3-phenoxycyclohex-2-en-1-one

2,4-二异丙基-7,7-二甲基-4,6,7,8-四氢-5H-1,3-苯并二氧杂环己-5-酮

7,7-dimethyl-2,4-diphenyl-6,8-dihydro-4H-chromen-5-one