2,3,4-tri-O-acetyl-α-L-rhamnopyranosyl-(1->3)-[2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl-(1->4)]-2-O-benzoyl-L-rhamnopyranose 在
4 A molecular sieve 、
1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下,
以
二氯甲烷 、
1,2-二氯乙烷 为溶剂,
反应 3.5h,
生成
2-azidoethyl 2,3,4-tri-O-acetyl-α-L-rhamnopyranosyl-(1->3)-[2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl-(1->4)]-2-O-benzoyl-α-L-rhamnopyranosyl-(1->3)-2-(acetylamino)-2-deoxy-4,6-isopropylidene-β-D-glucopyranoside