α-methyl-α'-pentylmesyltriflone

4-(1-Trifluoromethanesulfonyl-ethanesulfonyl)-non-1-en-3-ol

1-(2-methyl-1,3-dioxolan-2-yl)-2-nitrononan-3-one

3-甲基-2-环戊烯-1-酮

2-溴-3-甲基-2-环戊烯-1-酮