、
6-chloro-2-(trifluoromethyl)imidazo[1,2-a]pyridine-3-carboxylic acid 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,
以39 %的产率得到6-chloro-N-[[3-fluoro-4-[3-methoxy-4-(trifluoromethylsulfonyl)-5,6-dihydro-1,2,4-triazin-1-yl]phenyl]methyl]-2-(trifluoromethyl)imidazo[1,2-a]pyridine-3-carboxamide