3,3,6,6,9-pentamethyl-4,5,7,9-tetrahydro-2H-xanthene-1,8-dione

5,5-二甲基-2-苯甲酰甲基-1,3-环己烷二酮

5,5-dimethyl-3-(2-oxo-2-phenylethoxy)cyclohex-2-enone

5,5-二甲基-1,3-环己二肟

5,5-dimethyl-3-(4-methylanilino)cyclohex-2-en-1-one