1,2,3,4-tetra-O-acetyl-β-D-ribopyranose

(3aR,4S,6R,6aS)-6-氨基四氢-2,2-二甲基-4H-环戊烯并-1,3-二氧杂环戊烷-4-醇

(4,5-dibenzoyloxy-6-bromooxan-3-yl) benzoate

甲酸

羟基乙酸