methyl 2,3-di-O-acetyl-6-bromo-6-deoxy-4-O-(2,3,4-tri-O-acetyl-6-bromo-6-deoxy-β-D-galactopyranosyl)-β-D-glucopyranoside 、
sodium dimethyldithiocarbamate 以
N,N-二甲基甲酰胺 为溶剂,
反应 2.0h,
以81%的产率得到methyl 2,3-di-O-acetyl-6-S-(N,N-dimethylaminothiocarbonyl)-6-thio-4-O-<2,3,4-tri-O-acetyl-6-S-(N,N-dimethylaminothiocarbonyl)-6-thio-β-D-galactopyranosyl>-β-D-glucopyranoside