5,5-ethylenedioxy-1,4a-dimethyl-4,4a,5,6,7,8-hexahydro-2[3H]-naphthalenone

2-methyl-2-(3-oxopentyl)cyclohexane-1,3-dione

2-甲基-1,3-环己二酮

1-戊烯-3-酮

1-氯-3-戊酮