methyl 2-O-acetyl-3,4,6-tri-O-benzyl-β-D-glucopyranosyl-(1-> 2)-3,4,6-tri-O-benzyl-β-D-mannopyranosyl-(1-> 2)-3,6-di-O-benzyl-4-O-methyl-β-D-mannopyranoside 在
甲醇 、
sodium methylate 作用下,
以
二氯甲烷 为溶剂,
反应 24.0h,
以93%的产率得到methyl 3,4,6-tri-O-benzyl-β-D-glucopyranosyl-(1-> 2)-3,4,6-tri-O-benzyl-β-D-mannopyranosyl-(1-> 2)-3,6-di-O-benzyl-4-O-methyl-β-D-mannopyranoside