(S)-1-((R)-3-methylpentanoyl)-5-((trityloxy)methyl)pyrrolidin-2-one

(-)-3-methyl-4-pentenoic acid

3-Methyl-2-carboxy-penten-(4)-saeure

(S)-(-)-2-(1-methyl-allyl)malonic acid dimethyl ester

4-甲基-2-己醇