3,4,6-tri-O-acetyl-2-deoxy-2-(2,2,2-trichloroacetamido)-β-D-glucopyranosyl-(1->5)-2,6-anhydro-7-bromo-7-deoxy-3,4-O-isopropylidene-D-glycero-L-galacto-heptonamide 在
三氟乙酸 作用下,
以
二氯甲烷 为溶剂,
反应 2.0h,
以89%的产率得到3,4,6-tri-O-acetyl-2-deoxy-2-(2,2,2-trichloroacetamido)-β-D-glucopyranosyl-(1->5)-2,6-anhydro-7-bromo-7-deoxy-D-glycero-L-galacto-heptonamide