methyl [methyl (5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-D-glycero-α-D-galacto-non-2-ulopyranosyl)onate]-(2-> 3)-(4,6-O-benzylidene-β-D-galactopyranosyl)-(1-> 4)-2-deoxy-2-phthalimido-6-O-trimethylacetyl-β-D-glucopyranoside 在
吡啶 、
4-二甲氨基吡啶 、
pyridine-SO3 complex 、
溶剂黄146 作用下,
以
水 为溶剂,
反应 15.0h,
生成
methyl [methyl (5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-D-glycero-α-D-galacto-non-2-ulopyranosyl)onate]-(2 -> 3)-(6-O-sulfate-β-D-galactopyranosyl)-(1 -> 4)-2-deoxy-2-phthalimido-6-O-trimethylacetyl-β-D-glucopyranoside