(1S,4S)-2-ethyl-2,5-diazabicyclo[2.2.1]heptane bis-trifluoroacetate 、
1-cyclobutyl-5-[13-cyclohexyl-3-methoxy-10-[[[(N,N-dimethylamino)sulfonyl]amino]carbonyl]-7H-indolo[2,1-a][2]benzazepin-6-yl]-1H-pyrazole-4-carboxylic acid 在
N-甲基吗啉 、 O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以63.2%的产率得到6-[2-cyclobutyl-4-[(1S,4S)-5-ethyl-2,5-diazabicyclo[2.2.1]heptane-2-carbonyl]pyrazol-3-yl]-13-cyclohexyl-N-(dimethylsulfamoyl)-3-methoxy-7H-indolo[2,1-a][2]benzazepine-10-carboxamide