β-紫罗兰酮

氯乙酸乙酯

2-methyl-4-(2,6,6-trimethylcyclohexen-1-yl)but-3-enal

氯乙酸甲酯

1ξ-acetoxy-2-methyl-4t-(2,6,6-trimethyl-cyclohex-1-enyl)-buta-1,3-diene