(2R,4S,5S)-5-({3-[(benzylsulfonyl)(methyl)amino]benzoyl}amino)-4-{[tert-butyl(dimethyl)silyl]oxy}-2,7-dimethyloctanoic acid 、
3-氨基哌啶-2-酮盐酸盐 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
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 3.0h,
以20%的产率得到3-[(benzylsulfonyl)(methyl)amino]-N-((1S,2S,4R)-2-{[tert-butyl(dimethyl)silyl]oxy}-1-isobutyl-4-methyl-5-oxo-5-{[2-oxopiperidinyl]amino}pentyl)benzamide