参考文献:10.1055/s-0035-1560065 摘要:Lim H, Lee J, Choi J, Shin S, Heo J. N-Arylation of Sterically Hindered NH-Nucleophiles: Copper-Mediated Syntheses of Diverse N-Arylindole-2-carboxylates. Synthesis. 2015 Aug 20;47(21):3301–8. doi: 10.1055/s-0035-1560065.