3,3-dimethylpent-4-ynoic acid

5-iodo-4-hydroxy-3,3-dimethylpentanoic acid lactone

4,5-dihydro-4,4-dimethyl-5-phenylsulfoxymethyl (3H)-furan-2-(one)

3,3-二甲基-4-戊烯酸

贲亭酸乙酯