、
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 1.5h,
以67.1%的产率得到O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-(1-4)-O-<(2,3,4-tri-O-acetyl-α-L-fucopyranosyl)-(1-3)>-O-(2-acetamido-6-O-acetyl-2-deoxy-β-D-glucopyranosyl)-(1-3)-O-(2,4,6-tri-O-acetyl-β-D-galactopyranosyl)-(1-4)-2,3,6-tri-O-acetyl-α-D-glucopyra...