disaccharide donor 、
methyl (2,3,6-tri-O-benzyl-α-D-glucopyranosyl)-(1→4)-(2-O-acetyl-6-O-tert-butyldimethylsilyl-3-O-methyl-α-L-idopyranosyl)-(1→4)-2,3,6-tri-O-benzyl-α-D-glucopyranoside 在
N-碘代丁二酰亚胺 、
silver trifluoromethanesulfonate 作用下,
以
四氢呋喃 、
二氯甲烷 、
甲苯 为溶剂,
反应 3.0h,
以58%的产率得到methyl (6-O-benzyl-2,3,4-tri-O-methyl-α-D-glucopyranosyl)-(1→4)-(2,3-di-O-acetyl-6-O-(2-naphthyl)methyl-β-D-glucopyranosyl)-(1→4)-(2,3,6-tri-O-benzyl-α-D-glucopyranosyl)-(1→4)-(2-O-acetyl-6-O-tert-butyldimethylsilyl-3-O-methyl-α-L-idopyranosyl)-(1→4)-2,3,6-tri-O-benzyl-α-D-glucopyranoside