ethyl 2-O-acetyl-4-azido-3-O-benzyl-4,6-dideoxy-α-D-mannopyranosyl-(1->2)-bis[4-azido-3-O-benzyl-4,6-dideoxy-α-D-mannopyranosyl]-(1->2)-4-azido-3-O-benzyl-4,6-dideoxy-1-thio-α-D-mannopyranoside 、
allyl 2-O-acetyl-4-azido-4,6-dideoxy-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 0.25h,
以68%的产率得到allyl 2-O-acetyl-4-azido-3-O-benzyl-4,6-dideoxy-α-D-mannopyranosyl (1→2) 4-azido-3-O-benzyl-4,6-dideoxy-α-D-mannopyranosyl (1→2) 4-azido-3-O-benzyl-4,6-dideoxy-α-D-mannopyranosyl(1→2) 4-azido-3-O-benzyl-4,6-dideoxy-α-D-mannopyranosyl (1→3) 2-O-acetyl-4-azido-4,6-dideoxy-α-D-mannopyranoside