ethyl 8-methyl-1,4-dioxaspiro[4.5]dec-7-ene-7-carboxylate

氧基-3-戊烯

2,6-dimethylocta-5,7-dien-2-ol

(E)-2,6-dimethyl-5,7-octadien-2-ol

4-乙酰基-2-甲氧基吡啶