5-bromo-6,7-dimethyl-1H-benzo[d][1,2,3]triazole 、 ethyl (1S,4R,6S,7Z,14S,18S)-14-[(2-methylpropan-2-yl)oxycarbonylamino]-18-methylsulfonyloxy-2,15-dioxo-3,16-diazatricyclo[14.3.0.04,6]nonadec-7-ene-4-carboxylate 在
caesium carbonate 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
生成