Methyl (2S)-3-Amino-2-[({2,6-dimethyl-4-[3-(N-{2-[(phenylmethoxy)carbonylamino]ethyl}carbamoyl)propoxy]-phenyl}sulfonyl)amino]propanoate Trifluoroacetate Salt 、
7-(1-(triphenylmethyl-1H-imidazol-2-ylamino)methyl)-1-methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid 在
O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate 、
N,N-二异丙基乙胺 作用下,
以
N-methylpyrrolidinone (NMP) 为溶剂,
反应 17.25h,
以89%的产率得到methyl (2S)-2-[[2,6-dimethyl-4-[4-oxo-4-[2-(phenylmethoxycarbonylamino)ethylamino]butoxy]phenyl]sulfonylamino]-3-[[1-methyl-4-oxo-7-[[(1-tritylimidazol-2-yl)amino]methyl]quinoline-3-carbonyl]amino]propanoate