5,6-dimethyl-deca-1,9-diene-5,6-diol

2-acetyl-2-(2-methoxy-benzoyl)-pent-4-enoic acid ethyl ester

2-(4-acetoxy-benzoyl)-2-acetyl-pent-4-enoic acid ethyl ester

1-己烯-4-炔

硫酸