methyl [2-(O-methanesulfonyl)ethyl-(5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-2-thio-D-glycero-α-D-galacto-2-nonulopyranosyl)]nonate 在
sodium azide 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 2.0h,
以92%的产率得到methyl [2-azidoethyl-(5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-2-thio-D-glycero-α-D-galacto-2-nonulopyranosyl)]nonate