1,2,4-tri-O-acetyl-6-deoxy-6-iodo-3-S-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-3-thio-β-D-glucopyranose 、
2,3,4-tri-O-acetyl-6-S-<2,4-di-O-acetyl-3,6-di-S-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-3,6-dithio-β-D-glucopyranosyl>-1,6-dithio-β-D-glucopyranose 在
sodium hydride 作用下,
以
四氢呋喃 、
N,N-二甲基甲酰胺 为溶剂,
反应 1.0h,
以83%的产率得到S-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-(1->6)-S-<2,4-di-O-acetyl-3-S-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-3,6-dithio-β-D-glucopyranosyl>-(1->6)-S-(2,3,4-tri-O-acetyl-6-thio-β-D-glucopyranosyl)-(1->6)-S-<1,2,4-tri-O-acetyl-3-S-(2,3,4...