8-(methoxycarbonyl)octyl 2,4-di-O-benzyl-3,6-bis-O-(3,4,6-tri-O-benzyl-α-D-mannopyranosyl)-α-D-mannopyranoside 、
2,3,4-tri-O-acetyl-6-O-<(diphenoxy)phosphoryl>-α-D-mannopyranosyl bromide 在
silver trifluoromethanesulfonate 、
1,1,3,3-四甲基脲 作用下,
以
1,2-二氯乙烷 为溶剂,
反应 144.0h,
以9%的产率得到8-(methoxycarbonyl)octyl 3,6-bis-O-<2-O-<2,3,4-tri-O-acetyl-6-O-(diphenylphosphoryl)-α-D-mannopyranosyl>-3,4,6-tri-O-benzyl-α-D-mannopyranosyl>-2,4-di-O-benzyl-α-D-mannopyranoside