4-甲硫基-2-丁酮

5,5-bis(methylsulfanyl)penta-2,4-dienal

1-(1-methylimidazolidin-2-ylidene)propan-2-one

1-(1,3-diazinan-2-ylidene)propan-2-one

2-[bis(methylsulfanyl)methylidene]cyclohexan-1-one