3-ethylcyclohex-2-en-1-one

3-(4-methoxyphenyl)cyclohex-2-en-1-one

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

1,2,3,5,6,7-hexahydroinden-4-one

1-甲基-3-（3-氧代环己烯-1-基）氮杂卓-2-酮