2,3-O-异丙亚基-L-来苏糖酸-1,4-内酯

(2S)-2-(trityloxymethyl)-2H-furan-5-one

(5-methylidene-2-oxofuran-3-yl) acetate

[(2R,3S,4R)-3,4-二羟基-5-氧代四氢-2-呋喃基]甲基乙酸酯

3-O-acetyl-D-ribonolactone