benzyl O-(2-O-benzyl-4,6-O-isopropylidene-β-D-galactopyranosyl)-(1->4)-2,3,6-tri-O-benzyl-β-D-glucopyranoside 、
O-(2,6-Di-O-benzyl-3,4-O-isopropylidene-β-D-galactopyranosyl)-(1->4)-<(2,3,4-tri-O-benzyl-α-L-fucopyranosyl)-(1->3)>-(2-azido-6-O-benzyl-2-deoxy-β-D-glucopyranosyl)-(1->3)-(2,6-di-O-benzyl-β-D-galactopyranosyl)-(1->4)-<(2,3,4-tri-O-benzyl-α..)> 在
三氟化硼乙醚 作用下,
以
正己烷 、
二氯甲烷 为溶剂,
反应 0.5h,
以52%的产率得到Benzyl O-(2,6-Di-O-benzyl-3,4-O-isopropylidene-β-D-galactopyranosyl)-(1->4)-<(2,3,4-tri-O-benzyl-α-L-fucopyranosyl)-(1->3)>-(2-azido-6-O-benzyl-2-deoxy-β-D-glucopyranosyl)-(1->3)-(2,6-di-O-benzyl-β-D-galactopyranosyl)-(1->4)-<(2,3,4-tri-O-be..)>