1-ethyl-2-(hydroxydiphenylmethyl)-5-methoxy-1H-imidazo[4,5-b]pyridine-6-carboxylic acid 、
1-乙基-1H-1,2,4-噻唑-3-胺 在
三乙胺 、 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,
反应 19.0h,
以96.8%的产率得到1-ethyl-2-(hydroxydiphenylmethyl)-5-methoxy-1H-imidazo[4,5-b]pyridine-6-carboxylic acid (1-ethyl-1H-[1,2,4]triazol-3-yl)amide