methyl O-(2,3,4-tri-O-acetyl-6-O-p-tolylsulfonyl-β-D-glucopyranosyl)-(1->4)-O-(2,3-di-O-acetyl-6-O-p-tolylsulfonyl-β-D-glucopyranosyl)-(1->4)-2,3-di-O-acetyl-6-O-p-tolylsulfonyl-β-D-glucopyranoside 在
lithium chloride 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 3.0h,
以84%的产率得到methyl O-(2,3,4-tri-O-acetyl-6-chloro-6-deoxy-β-D-glucopyranosyl)-(1->4)-O-(2,3-di-O-acetyl-6-chloro-6-deoxy-β-D-glucopyranosyl)-(1->4)-2,3-di-O-acetyl-6-chloro-6-deoxy-β-D-glucopyranoside