3-甲基-2-环己烯-1-酮

3-cyano-3-methylcyclohexan-1-one

methyl 1-methyl-3-oxocyclohexane-1-carboxylate

(R)-7-(bromomethyl)-7-methyl-1,4-dioxaspiro[4.5]decane

(R)-3-(bromomethyl)-3-methylcyclohexan-1-one