反应详情

温度

25 °C

To a solution of 2-methyl-2H-pyrazole-3,4-dicarboxylic acid 4-ethyl ester (8.0 g, 40.4 mmol) in DMF (120 ml) were added HATU (34 g, 88.9 mmol), 2-(3-methoxy-phenyl)-[1,2,4]triazolo[1,5-a]pyridin-7-ylamine (10.6 g, 44.4 mmol) and DIPEA (30 ml, 161.1 mmol) at 0° C. The reaction mixture was stirred at 25° C. for 16 h. The reaction mixture was diluted with water. The resultant precipitated solid was filtered, washed with water, dried azeotropically with toluene followed by vacuum to yield 5-[2-(3-methoxy-phenyl)-[1,2,4]triazolo[1,5-a]pyridin-7-ylcarbamoyl]-1-methyl-1H-pyrazole-4-carboxylic acid ethyl ester as white solid (7.8 g, 56%). LC-MS: m/z=421.2 [M+H]+.

1. customThe resultant precipitated solid
2. filtrationwas filtered
3. washwashed with water
4. dry with materialdried azeotropically with toluene