乙酸酐 、
3-O-(2-Acetamido-3,4,6-tri-O-acetyl-2-desoxy-α-D-glucopyranosyl)-2-O-acetyl-4-O-(2,3,4,6-tetra-O-acetyl-β-D-mannopyranosyl)-1,6-anhydro-β-D-galactopyranose 在
三氟乙酸 作用下,
以
硝基甲烷 为溶剂,
反应 16.0h,
以58%的产率得到3-O-(2-Acetamido-3,4,6-tri-O-acetyl-2-desoxy-α-D-glucopyranosyl)-1,2,6-tri-O-acetyl-4-O-(2,3,4,6-tetra-O-acetyl-β-D-mannopyranosyl)-α-D-galactopyranose