phenyl-4,6-O-benzylidene-2-O-benzoyl-3-O-methyl-α-D-mannopyranosyl-(1-6)-(2-O-benzoyl-4-O-benzyl-3-O-methyl-α-D-mannopyranosyl)-(1-3)-2,4,6-tri-O-benzyl-1-thio-α-D-mannopyranoside 、 (3,4,6-tri-O-benzyl-α-D-mannopyranosyl)-(1-2)-(3,4,6-tri-O-benzyl-1-thio-α-D-mannosyl)-(1-4)-(3-O-benzoyl-6-O-benzyl-2-deoxy-2-(2,2,2-trichloroethoxycarbonylamino))-β-D-galactopyranosyl azide 在
N-碘代丁二酰亚胺 、
三氟甲磺酸三甲基硅酯 作用下,
以
二氯甲烷 为溶剂,
反应 2.0h,
以90%的产率得到4,6-O-benzylidene-2-O-benzoyl-3-O-methyl-α-D-mannopyranosyl-(1-6)-2-O-benzoyl-4-O-benzyl-3-O-methyl-α-D-mannopyranosyl-(1-3)-2,4,6-tri-O-benzyl-α-Dmannopyranosyl-(1-2)-3,4,6-tri-O-benzyl-α-D-mannopyranosyl-(1-2)-3,4,6-tri-Obenzyl-α-D-mannopyranosyl-(1-4)-3-O-benzoyl-6-O-benzyl-2-deoxy-2-(2,2,2-trichloroethoxycarbonylamino)-β-D-galactopyranosyl azide