3-(trifluoroacetamido)propyl 3,4,6-tri-O-benzyl-α-D-mannopyranosyl-(1->2)-3,4,6-tri-O-benzyl-α-D-mannopyranoside 、
ethyl 2,3,4,6-tetra-O-benzoyl-α-D-mannopyranosyl-(1->3)-[2,3,4,6-tetra-O-benzoyl-α-D-mannopyranosyl-(1>6)]-2,4-di-O-benzoyl-1-thio-α-D-mannopyranoside 在
N-碘代丁二酰亚胺 、
三氟甲磺酸 作用下,
以
二氯甲烷 为溶剂,
反应 0.5h,
以57%的产率得到3-trifluoroacetamidopropyl 2,3,4,6-tetra-O-benzoyl-α-D-mannopyranosyl-(1->3)-[2,3,4,6-tetra-O-benzoyl-α-D-mannopyranosyl-(1->6)]-2,4-di-O-benzoyl-α-D-mannopyranosyl-(1->2)-3,4,6-tri-O-benzyl-α-D-mannopyranosyl-(1->2)-3,4,6-tri-O-benzyl-α-D-mannopyranoside