4-methoxyphenyl O-(6-methyl-3-O-benzyl-2,4-di-O-pivaloyl-α-L-idopyranuronosyl)-(1→3)-O-(2-deoxy-2-trifluoroacetamido-β-D-galactopyranosyl)-(1→4)-O-6-(6-benzyl 2-O-benzoyl-3-O-benzyl-β-D-glucopyranuronosyl)-(1→3)-2-deoxy-4,6-O-(di-tert-butylsilylene)-2-trifluoroacetamido-β-D-galactopyranoside 在
pyridine hydrofluoride 作用下,
以
四氢呋喃 为溶剂,
反应 24.0h,
以97%的产率得到4-methoxyphenyl O-(6-methyl 3-O-benzyl-2,4-di-O-pivaloyl-α-L-idopyranuronosyl)-(1→3)-O-(2-deoxy-2-trifluoroacetamido-β-D-galactopyranosyl)-(1→4)-O-(6-benzyl 2-O-benzoyl-3-O-benzyl-β-D-glucopyranuronosyl)-(1→3)-2-deoxy-2-trifluoroacetamido-β-D-galactopyranoside