Morpholine → N-(2-(dimethylamino)-[1,2,4]triazolo[1,5-a]pyridin-7-yl)-1-methyl-4-(morpholine-4-carbonyl)-1H-pyrazole-5-carboxamide

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Reaction Conditions

Reaction Steps

A mixture of 5-(2-(dimethylamino)-[1,2,4]triazolo[1,5-a]pyridin-7-ylcarbamoyl)-1-methyl-1H-pyrazole-4-carboxylic acid (150 mg, 455 μmol), morpholine (317 μl, 3.64 mmol), propylphosphonic anhydride (50% in ethyl acetate, 671 μl, 1.14 mmol) and diisopropylethylamine (239 μl, 1.37 mmol) in tetrahydrofurane (8 ml) is stirred for 18 hours at 70° C. under nitrogen atmosphere. The solvent is evaporated and the residue triturated with sat. aqueous sodium hydrogencarbonate solution. The precipitated solid is collected by filtration, washed with water and dried affording N-(2-(dimethylamino)-[1,2,4]triazolo[1,5-a]pyridin-7-yl)-1-methyl-4-(morpholine-4-carbonyl)-1H-pyrazole-5-carboxamide (152 mg, 83.8%) as an off-white solid. Mp.: 196-8° C. MS: m/z=399.0 (M+H+).

Provenance & Evidence