D-(+)-苹果酸二乙酯

(R)-(+)-1,2,4-丁三醇

(S)-[2,2-二甲基-5-氧代二氧戊环-4-基]乙酸

methyl 2-((R)-2,2-dimethyl-5-oxo-1,3-dioxolan-4-yl)acetate

(S)-3-乙酰氧基二氢-2,5-呋喃二酮 O-乙酰基-L-苹果酸酐