2,3,4-tri-O-acetyl-6-O-tert-butyldimethylsilyl-β-D-glucopyranosyl-(1->4)-2,3-di-O-acetyl-6-O-tert-butyldimethylsilyl-β-D-glucopyranosyl-(1->6)-1,2:3,4-di-O-isopropylidene-α-D-galactopyranose 在
溴 、
三苯基膦 作用下,
以
二氯甲烷 为溶剂,
反应 19.0h,
以96%的产率得到2,3,4-tri-O-acetyl-6-bromo-6-deoxy-β-D-glucopyranosyl-(1->4)-2,3-di-O-acetyl-6-bromo-6-deoxy-β-D-glucopyranosyl-(1->6)-1,2:3,4-di-O-isopropylidene-α-D-galactopyranose