phenyl 4-O-acetyl-2,3,6-tri-O-methyl-β-D-glucopyranosyl-[1-4]-2,3,6-tri-O-methyl-1-thio-β-D-glucopyranoside 、
4-O-acetyl-2,3,6-tri-O-benzyl-β-D-glucopyranosyl-[1-4]-2,3,6,-tri-O-benzyl-D-glucopyranosyl fluoride 在
silver trifluoromethanesulfonate N-碘代丁二酰亚胺 、 4 A molecular sieve 作用下,
以
二氯甲烷 为溶剂,
反应 22.0h,
以18%的产率得到4-O-acetyl-2,3,6-tri-O-methyl-β-D-glucopyranosyl-[1-4]-2,3,6-tri-O-methyl-β-D-glucopyranosyl-[1-4]-2,3,6-tri-O-benzyl-β-D-glucopyranosyl-[1-4]-2,3,6-tri-O-benzyl-D-glucopyranosyl fluoride