p-nitrophenyl O-(2,3-di-O-acetyl-α-D-glucopyranosyl)-(1<*>4)tris
4)>-2,3,6-tri-O-acetyl-α-D-glucopyranoside 、 methyl 2,3,5-tri-O-benzoyl-1-thio-β-D-ribofuranose 在
N-碘代丁二酰亚胺 、 三氟甲磺酸 、 4 A molecular sieve 作用下,
生成 p-nitrophenyl O-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)-(1<*>6)-O-(2,3-di-O-acetyl-α-D-glucopyranosyl)-(1<*>4)tris4)>-2,3,6-tri-O-acetyl-α-D-glucopyranoside