Ammonium Hydroxide → racemic 4-(1-(4-(3-methyl-5-(pyrimidin-2-ylamino)phenyl)-1H-pyrazol-1-yl)ethyl)benzamide

Participants

Reaction Steps

2-(1H-Benzo[d][1,2,3]triazol-1-yl)-1,1,3,3-tetramethylisouronium tetrafluoroborate (101 mg, 0.315 mmol) was added to a solution of 4-(1-(4-(3-methyl-5-(pyrimidin-2-ylamino)phenyl)-1H-pyrazol-1-yl)ethyl)benzoic acid (105 mg, 0.263 mmol) in THF (5.0 mL) and DMF (1.0 mL). Ammonium hydroxide (0.15 mL, 1.05 mmol) was then added and the reaction mixture was stirred at ambient temperature for 1 hour. The reaction mixture was diluted with ethyl acetate (100 mL) and water (10 mL). The organic layer was separated and washed with water (2×10 mL) followed by brine (10 mL). The organic layer was dried over anhydrous magnesium sulfate, filtered, and concentrated under reduced pressure to afford the crude product residue. The crude product residue was purified by column chromatography on silica (0-100% [5% methanol in ethyl acetate]/hexanes) to afford racemic 4-(1-(4-(3-methyl-5-(pyrimidin-2-ylamino)phenyl)-1H-pyrazol-1-yl)ethyl)benzamide. MS ESI calcd. for C23H23N6O [M+H]+ 399. found 399. 1H NMR (500 MHz, DMSO-d6) δ 9.46 (s, 1H), 8.46 (d, J=5.0 Hz, 2H), 8.22 (s, 1H), 7.92 (s, 1H), 7.82 (s, 1H), 7.79 (d, J=6.5 Hz, 2H), 7.71 (s, 1H), 7.41 (s, 1H), 7.36-7.26 (m, 3H), 7.00 (s, 1H), 6.80 (t, J=5.0 Hz, 1H), 5.70-5.64 (m, 1H), 2.27 (s, 3H), 1.83 (d, J=7.0 Hz, 3H).

Provenance & Evidence