methyl (methyl 5-acetamido-4,7,8-tri-O-acetyl-9-azido-2-thio-3,5,9-trideoxy-D-glycero-D-galacto-2-nonulopyranosid)onate 、
3-(苄氧羰基氨基)-1-丙醇 在
N-碘代丁二酰亚胺 、
三氟甲磺酸 作用下,
以
乙腈 为溶剂,
生成 methyl [(3-benzoxycarbonylaminopropyl) 5-acetamido-4,7,8-tri-O-acetyl-9-azido-3,5,9-trideoxy-D-glycero-D-galacto-2-nonulopyranosid]onate 、
methyl [(3-benzoxycarbonylaminopropyl) 5-acetamido-4,7,8-tri-O-acetyl-9-azido-3,5,9-trideoxy-D-glycero-D-galacto-2-nonulopyranosid]onate