(3R,4S,5S)-5-amino-3,4-dimethyloxan-2-one 、 (2S,3R)-3-azido-2-[(2-methylpropan-2-yl)oxycarbonylamino]butanoic acid 在
N,N-二异丙基乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
二氯甲烷 为溶剂,
以114 mg的产率得到tert-butyl N-[(2S,3R)-3-azido-1-[[(3S,4S,5R)-4,5-dimethyl-6-oxooxan-3-yl]amino]-1-oxobutan-2-yl]carbamate