7,8-dimethoxy-3,4-dihydro-2H-dibenzofuran-1-one

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

2-氨基-7-氧代-4,5,6,7-四氢-1-苯并噻吩-3-羧酸乙酯

2-hydroxyiminocyclohexane-1,3-dione

4-but-2-ynylcyclohexane-1,3-dione