2,3,4,6-tetra-O-benzoyl-α-D-glucopyranosyl-(1-4)-2,3,6-tri-O-benzoyl-α-D-glucopyranosyl-(1-4)-2,3,6-tri-O-benzoyl-β-D-glucopyranosyl-(1-6)-1,2,3,4-tetra-O-benzoyl-D-mannopyranose 、
三氯乙腈 在
二甲胺 、
potassium carbonate 、
caesium carbonate 作用下,
以
吡啶 、
乙醇 、
二氯甲烷 为溶剂,
反应 6.0h,
以48%的产率得到2,3,4,6-tetra-O-benzoyl-α-D-glucopyranosyl-(1-4)-2,3,6-tri-O-benzoyl-α-D-glucopyranosyl-(1-4)-2,3,6-tri-O-benzoyl-β-D-glucopyranosyl-(1-6)-1,2,3,4-tetra-O-benzoyl-D-mannopyranosyl trichloroacetimidate