、
allyl α-D-glucopyranosyl-(1->4)-2-acetamido-2-deoxy-α-D-glucopyranoside 、
果糖 在
silica gel 、
acetonitrile-water 、 disaccharide 作用下,
以of the pure trisaccharide XX2 (2.53 g, 4.32 mmol) resulting from the enzyme-mediated transfer of glucose onto disaccharide XX3的产率得到