5-O-[3,4,6-tri-O-acetyl-2-deoxy-2-(2,2,2-trichloroacetamido)-β-D-glucopyranosyl]-6,7-dideoxy-2,3-O-isopropylidene-L-galacto-hept-6-enonamide 在
CuCl
2*2H
2O 作用下,
以
乙腈 为溶剂,
反应 5.0h,
以94%的产率得到6,7-dideoxy-5-O-[3,4,6-tri-O-acetyl-2-deoxy-2-(2,2,2-trichloroacetamido)-β-D-glucopyranosyl]-L-galacto-hept-6-enono-1,4-lactone