二叔丁基叠氮草酸 、
(4S)-4-isopropyl-3-[1-oxo-4-(2,3,4,6-tetra-O-benzyl-β-D-galactopyranosyl)butyl]-2-oxazolidinone 在
lithium diisopropyl amide 作用下,
生成 (4S)-4-isopropyl-3-{2-[N-(N-butyloxycarbamido)butyloxycarbamido]-1-oxo-4-(2,3,4,6-tetra-O-benzyl-β-D-galactopyranosyl)butyl}-2-oxazolidinone