2-[2-(4-甲氧基苯基)-2-氧代乙基]环己烷-1,3-二酮

methyl 7-(2,6-dioxocyclohexyl)hept-5-ynoate

2-(anilinomethylidene)cyclohexane-1,3-dione

2-methylidene-3,3a,4,5-tetrahydro-1-benzofuran-6-one

3-(methylamino)cyclohex-2-en-1-one