2,2,2-三氟乙基胺 、 6-((7-(4-cyano-3-(trifluoromethyl)phenyl)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4-yl)amino)pyridazin-3-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21%的产率得到6-((7-(4-cyano-3-(trifluoromethyl)phenyl)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4-yl)amino)-N-(2,2,2-trifluoroethyl)pyridazin-3-carboxamide