BOC-N-甲基-L-丙氨酸 、 (3S)-3-amino-1-[4-[(3S)-3-amino-5-[(6-bromo-2-methoxy-1-naphthyl)methyl]-4-oxo-2,3-dihydro-1,5-benzodiazepine-1-carbonyl]benzoyl]-5-[(6-bromo-2-methoxy-1-naphthyl)methyl]-2,3-dihydro-1,5-benzodiazepin-4-one dihydrochloride 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,
反应 120.0h,
以71%的产率得到tert-butyl N-[(1S)-2-[[(3S)-5-[(6-bromo-2-methoxy-1-naphthyl)methyl]-1-[4-[(3S)-5-[(6-bromo-2-methoxy-1-naphthyl)methyl]-3-[[(2S)-2-[tert-butoxycarbonyl(methyl)amino]propanoyl]amino]-4-oxo-2,3-dihydro-1,5-benzodiazepine-1-carbonyl]benzoyl]-4-oxo-2,3-dihydro-1,5-benzodiazepin-3-yl]amino]-1-methyl-2-oxo-ethyl]-N-methyl-carbamate