3-ethyl-4-(2-hydroxyethoxy)hex-5-en-3-ol

4-ethoxy-3-ethylhex-5-en-3-ol

3,5-二乙基-4-甲基-1H-吡唑

acetic acid,pent-2-en-3-ol

(E)-1-吡咯烷基-2-戊烯