ethyl 2-acetyl-7-acetoxy-5-methylheptanoate

3,7-dimethyl-octa-1,7-dien-4-yn-3-ol

3,7-dimethyl-1-acetoxy-6-p-toluenesulfonyloxy octane

7-OH-1-OAc-3,7-dimethyloctane

1,1-dimethoxy-3,7-dimethyl-oct-7-en-4-yn-3-ol