Ammonium formate → (R)-2-amino-3-hydroxy-N-(4-(2-(4-morpholinophenylamino)pyrimidin-4-yl)phenyl)propanamide

Participants

Reaction Conditions

Reaction Steps

To a stirred solution of (R)-benzyl 3-hydroxy-1-(4-(2-(4-morpholinophenylamino)-pyrimidin-4-yl)phenylamino)-1-oxopropan-2-ylcarbamate from the step above in MeOH (10 mL) was added Pd(OH)2 (134 mg) and ammonium formate (369 mg, 5.85). The mixture was heated at 60° C. for 2 hours, cooled down to room temperature, and filtered on Celite by eluting with MeOH. The filtrate was concentrated in vacuo and the residue was purified by preparatory HPLC (TFA). The TFA salt was removed by using basic resin to afford (R)-2-amino-3-hydroxy-N-(4-(2-(4-morpholinophenylamino)pyrimidin-4-yl)phenyl)propanamide 365 (346 mg, 68%). 1H-NMR (400 MHz, DMSO-d6): 9.39 (s, 1H), 8.44 (d, 1H), 8.13 (d, 2H), 7.83 (d, 2H), 7.67 (d, 2H), 7.29 (d, 1H), 6.94 pm (d, 2H), 4.94 (m, 1H), 3.75 (m, 4H), 3.60 (m, 2H), 3.46 (m, 1H), 3.05 (m, 4H); MS (EI) m/z for C23H26N6O3: 435.4 (MH+).

Provenance & Evidence