Methylamine → HCID 178485279, compound

Participants

Reaction Steps

To a solution of 2-[(trans-4-hydroxycyclohexyl)amino]quinazoline-7-carboxylic acid (116 mg, 0.404 mmol) in DMF (3 mL) was added EDCl (93 mg, 0.484 mmol), HOBt (60 mg, 0.444 mmol), NMM (0.111 mL, 1.01 mmol) followed by the methylamine solution (2 M in THF, 0.303 mL, 0.606 mmol) and the mixture stirred at ambient temperature for 16 hours. The solvents were removed in vacuo and the residue azeotroped with MeOH (10 mL). The resulting yellow gum was purified directly by Biotage 25M; loaded in 2% MeOH/CH2Cl2, and eluted with 2-7% MeOH/CH2Cl2 over 520 mL. Product not fully eluted so continued over another 300 mL to 10% MeOH/CH2Cl2 to give a solid that was then triturated with EtOAc, filtered and dried in vacuo to yield the title compound as a yellow solid, 78 mg, 65%. 1H NMR (400 MHz, DMSO-D6) δ ppm 9.11 (1H, s) 8.68 (1H, d, J=3.54 Hz) 7.90 (1H, s) 7.81 (1H, d, J=8.34 Hz) 7.57 (1H, d, J=8.34 Hz) 7.39 (1H, d, J=6.57 Hz) 4.56 (1H, d, J=4.29 Hz) 3.79 (1H, s) 3.36-3.50 (1H, m) 2.79 (3H, d, J=4.55 Hz) 1.80-2.03 (4H, m) 1.17-1.43 (4H, m); MS (API+) for C16H20N4O2 m/z 301.2 (M+H)+.

Provenance & Evidence