C
92H
92O
17S 、
potassium thioacetate 以
N,N-二甲基甲酰胺 为溶剂,
反应 5.0h,
以98%的产率得到2,3,4-tri-O-(4-methoxyphenylmethyl)-6-O-triphenylmethyl-α-D-galactopyranosyl-(1->4)-2,3-di-O-(4-methoxyphenylmethyl)-6-O-triphenylmethyl-1-acetylthio-α-Δ
5,5a-carba-D-galactopyranose