ethyl 5-acetyl-8-amino-1-(4-fluorophenyl)-4,5-dihydro-1H-pyrazolo[4,3-c]quinoline-3-carboxylate 在
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,
生成
5-acetyl-8-{[(2-chloropyridin-3-yl)carbonyl]amino}-1-(4-fluorophenyl)-4,5-dihydro-1H-pyrazolo[4,3-c]quinoline-3-carboxamide