1-(2,2-difluoroethyl)pyrrolidin-3-amine 、 2-(4-chloro-3-methoxyphenyl)-5-cyclopropyl-4-oxo-3,4-dihydropyrrolo[2,1-f][1,2,4]triazine-6-carboxylic acid 在
N,N-二异丙基乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以62%的产率得到2-(4-chloro-3-methoxyphenyl)-5-cyclopropyl-N-[1-(2,2-difluoroethyl)pyrrolidin-3-yl]-4-oxo-3,4-dihydropyrrolo[2,1-f][1,2,4]triazine-6-carboxamide