1-(cyclopropylmethyl)piperazin-2-one hydrochloride 、 3-chloro-6-cyclopropyl-8-(trifluoromethyl)imidazo[1,2-a]pyridine-2-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,
反应 2.0h,
以70%的产率得到4-{[3-chloro-6-cyclopropyl-8-(trifluoromethyl)imidazo[1,2-a]pyridin-2-yl]carbonyl}-1-(cyclopropylmethyl)-2-piperazinone