β-羟基异戊酸 、 [(2R,3R,4S,5R,6R)-5-acetyloxy-3-amino-2-methyl-6-[2-(phenylmethoxycarbonylamino)ethoxy]oxan-4-yl] benzoate 在
N,N-二异丙基乙胺 、
Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
二氯甲烷 为溶剂,
以152 mg的产率得到N-benzyloxycarbonylaminoethyl 2-O-acetyl-4-(3-hydroxy-3-methylbutamido)-3-O-benzoyl-4,6-dideoxy-β-D-glucopyranoside