乙酸酐 、
O-β-D-glucopyranosyl-(1-3)-O-<β-D-glucopyranosyl-(1-6)>-O-β-D-glucopyranosyl-(1-3)-D-glucopyranose 在
sodium acetate 作用下,
反应 0.5h,
以82%的产率得到[(2R,3R,4S,5R,6S)-5-乙酰氧基-6-[(2S,3R,4S,5R,6R)-2,3,5-三乙酰氧基-6-(乙酰氧基甲基)四氢吡喃-4-基]氧基-4-[(2S,3R,4S,5R,6R)-3,4,5-三乙酰氧基-6-(乙酰氧基甲基)四氢吡喃-2-基]氧基-2-[[(2S,3R,4S,5R,6R)-3,4,5-三乙酰氧基-6-(乙酰氧基甲基)四氢吡喃-2-基]氧基甲基]四氢吡喃-3-基]乙酸酯