(S)-(-)-5-羟甲基-2(5H)-呋喃酮

三苯基氯甲烷

(4S)-(+)-2-phenylseleno-4-trityloxymethyl-butan-4-olide

(3R,4S,5R)-3,4-dihydroxy-5-(trityloxymethyl)-dihydrofuran-2(3H)-one

D-(+)-核糖酸-1,4-内酯