Diisopropylethylamine → HCID 57377411, compound

Participants

Reaction Steps

A mixture of 1-methyl-5-(2-phenyl-[1,2,4]triazolo[1,5-a]pyridin-7-ylcarbamoyl)-1H-pyrazole-4-carboxylic acid (100 mg, 276 μmol), (S)-tetrahydrofuran-3-ylamine hydrochloride (68.2 mg, 552 μmol), diisopropylethylamine (193 μl, 1.1 mmol) and propylphosphonic anhydride (50% in ethyl acetate, 407 μl, 690 μmol) in tetrahydrofurane (7 ml) is refluxed for 18 hours. The solvent is evaporated and to the residue is added sat. aqueous sodium hydrogencarbonate solution. The mixture is stirred for 20 minutes while a white solid precipitates. The solid is collected by filtration, washed with diethylether and dried affording (S)-1-methyl-N5-(2-phenyl-[1,2,4]triazolo[1,5-a]pyridin-7-yl)-N4-(tetrahydrofuran-3-yl)-1H-pyrazole-4,5-dicarboxamide (118 mg, 99.1%) as a white solid. mp.: >250° C. MS: m/z=432.4 (M+H+).

Provenance & Evidence