(E)-4-(3-(3-bromo-4-fluorophenyl)-N-methylacrylamido)-1-(tert-butoxycarbonyl)piperidine-4-carboxylic acid 、
5-氟色胺盐酸盐 在
N,N-二异丙基乙胺 、 Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 18.0h,
以68%的产率得到(E)-tert-butyl 4-(3-(3-bromo-4-fluorophenyl)-N-methylacrylamido)-4-(2-(5-fluoro-1H-indol-3-yl)ethylcarbamoyl)piperidine-1-carboxylate