8-(methoxycarbonyl)octyl 2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-β-D-glucopyranosyl-(1<*>2)-3,6-di-O-acetyl-4-O-methyl-α-D-mannopyranosyl-(1<*>3)-2,4-di-O-benzyl-6-O-chloroacetyl-β-D-mannopyranoside 在
吡啶 、
硫脲 作用下,
以
乙醇 为溶剂,
反应 1.5h,
以77%的产率得到8-(methoxycarbonyl)octyl 2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-β-D-glucopyranosyl-(1<*>2)-3,6-di-O-acetyl-4-O-methyl-α-D-mannopyranosyl-(1<*>3)-2,4-di-O-benzyl-β-D-mannopyranoside