2-Bromo-6-fluorophenylisothiocyanate 、 5-[O-(2',3',4',6'-tetra-O-acetyl-β-D-galactopyranosyl)oxymethyl]-5-amino-2,2-dimethyl-1,3-dioxane 以
N,N-二甲基甲酰胺 为溶剂,
以79%的产率得到5-[O-(2',3',4',6'-tetra-O-acetyl-β-D-galactopyranosyl)oxymethyl]-5-[N-(2-bromo-6-fluorophenylthiourea)]-2,2-dimethyl-1,3-dioxane