Diisopropylethylamine → (R)-3-hydroxy-N-(4-(2-(4-morpholinophenylamino)pyrimidin-4-yl)phenyl)butanamide

Participants

Reaction Steps

To a solution of (R)-3-hydroxybutyrate (0.180 g, 1.73 mmol), HATU (0.602 g, 1.58 mmol), DIEA (1.0 mL, 5.4 mmol) in DMF (3.0 mL) was added and a solution of 4-(4-aminophenyl)-N-(4-morpholinophenyl)pyrimidin-2-amine (249(a)) (0.500 g, 1.44 mmol) in DMF (1.0 mL). The reaction mixture was stirred at room temperature for 2 hours, at which time it was quenched with saturated NaHCO3 (10 mL, aq.), extracted into DCM (3×), washed with brine (1×), and the organic layers were dried with sodium sulfate. The solution was concentrated and the product was purified by reverse phase HPLC to afford (R)-3-hydroxy-N-(4-(2-(4-morpholinophenylamino)pyrimidin-4-yl)phenyl)butanamide (364) (0.129 g, 21% yield) as a light brown solid. 1H-NMR (400 MHz, DMSO)-d6: 10.14 (s, 1H), 9.38 (s, 1H), 8.44 (d, 1H), 8.12 (d, 2H), 7.77 (d, 2H), 7.68 (d, 2H), 7.27 (d, 1H), 6.94 (d, 2H), 4.79 (d, 1H), 4.11 (m, 1H), 3.74 (m, 4H), 3.05 (m, 4H), 2.47 (dd, 1H), 2.35 (dd, 1H), 1.15 (d, 3H); MS (EI) m/z for C24H28N5O3: 434.3 (MH+).

Provenance & Evidence