sodium [(2,3-difluorobenzyl) 5-acetamido-9-(4-chlorobenzamido)-3,5,9-trideoxy-7,8-O-isopropylidene-D-glycero-α-D-galacto-2-nonulopyranosid]onate 、
异氰酸苯酯 在
4-二甲氨基吡啶 作用下,
以
吡啶 为溶剂,
反应 24.0h,
以29%的产率得到sodium [(2,3-difluorobenzyl) 5-acetamido-9-(4-chlorobenzamido)-3,5,9-trideoxy-7,8-O-isopropylidene-4-O-phenylcarbamoyl-D-glycero-α-D-galacto-2-nonulopyranosid]onate