(1S,4S)-2-ethyl-2,5-diazabicyclo[2.2.1]heptane bis-trifluoroacetate 、
5-[13-cyclohexyl-3-methoxy-10-[[[(2-methylpropyl)sulfonyl]amino]carbonyl]-7H-indolo[2,1-a][2]benzazepin-6-yl]-1-methyl-1H-pyrazole-4-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
二甲基亚砜 为溶剂,
反应 3.25h,
以87%的产率得到13-cyclohexyl-6-[4-[[(1S,4S)-5-ethyl-2,5-diazabicyclo[2.2.1]hept-2-yl]carbonyl]-1-methyl-1H-pyrazol-5-yl]-3-methoxy-N-[(2-methylpropyl)sulfonyl]-7H-indolo[2,1-a][2]benzazepine-10-carboxamide