metyl 2-acetamido-3,4-di-O-acetyl-6-bromo-2,6-dideoxy-α-D-glucopyranoside 、
2-Thiosialic acid methyl ester peracetate 在
二乙胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 4.0h,
以75%的产率得到methyl (methyl 5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-D-glycero-α-D-galacto-2-nonulopyranosylonate)-(2<*>6)-2-acetamido-3,4-di-O-acetyl-2-deoxy-6-thio-α-D-glucopyranoside