(2Z,6E)-3-Methyl-8-(tetrahydro-pyran-2-yloxy)-octa-2,6-dienoic acid methyl ester

4-pentyn-1-al

(2E)-hept-2-en-6-yn-1-ol

4-戊炔-1-醇

(Z)-hept-2-en-6-ynoic acid ethyl ester