1-((1R,2S,3R)-2,3-dimethoxy-2-methylcyclopropyl)heptan-1-one

3,5,5-triethoxy-2-methylcyclopent-2-en-1-one

正戊基溴化镁

2-methyl-3-n-pentylcyclopent-2-ene-1,4-dione

4,4-Diethoxy-2-methyl-3-n-pentyl-2-cycopentene-1-on