(2-deoxy-4,6-O-isopropylidene-3-O-levulinoyl-2-trichloroacetamido-β-D-glucopyranosyl)-(1->2)-[2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl-(1->3)]-4-O-benzyl-α-L-rhamnopyranose 、
三氯乙腈 在
1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下,
以
1,2-二氯乙烷 为溶剂,
反应 0.17h,
以85%的产率得到(2-deoxy-4,6-O-isopropylidene-3-O-levulinoyl-2-trichloroacetamido-β-D-glucopyranosyl)-(1->2)-[2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl-(1->3)]-4-O-benzyl-α/β-L-rhamnopyranose trichloroacetimidate