ethyl 5-methyl-2-prop-1-en-2-ylhex-4-enoate

(Z)-ethyl 3,7-dimethylocta-2,6-dienoate

(E)-3,7-二甲基-2,6-辛二烯酸乙酯

ethyl 3,5-dimethyl-5-methoxy-2-hexenoate

ethyl 5-methoxy-3,5-dimethylhex-2-enoate