2-(3-amino-2-oxopyridin-1(2H)-yl)acetonitrile 、 2-((1R,4r)-4-((R)-2-hydroxy-N-methylpropanamido)cyclohexyl)-6-methoxy-2H-indazole-5-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55 %的产率得到N-(1-(cyanomethyl)-2-oxo-1,2-dihydropyridin-3-yl)-2-((1R,4r)-4-((R)-2-hydroxy-N-methylpropanamido)cyclohexyl)-6-methoxy-2H-indazole-5-carboxamide