1-Methylpiperazine → HCID 53482416, compound

Participants

Reaction Steps

A solution of N-methylpiperazine (0.040 mL, 0.356 mmol), (S)-2-(1-(6-amino-5-cyanopyrimidin-4-ylamino)ethyl)-3-phenylimidazo[1,2-a]pyridine-5-carboxylic acid (0.071 g, 0.178 mmol), PyBOP (0.185 g, 0.356 mmol) and DIEA (0.062 mL, 0.356 mmol) in DMF (1.78 mL) was stirred at rt for 1 h. The solution was loaded onto silica gel and purified by MPLC (eluted with a gradient of 0-10% MeOH in DCM) to afford an off-white solid that was repurified by MPLC (eluted with a gradient of 0-80% (1:10:90 NH4OH:MeOH:DCM) solution in DCM) to afford 4-amino-6-(((1S)-1-(5-((4-methyl-1-piperazinyl)carbonyl)-3-phenylimidazo[1,2-a]pyridin-2-yl)ethyl)amino)-5-pyrimidinecarbonitrile as a white solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 1.43 (dd, J=14.18, 6.75 Hz, 3H) 1.88-2.01 (m, 1H) 2.03-2.10 (m, 1H) 2.12-2.44 (m, 6H) 3.00-3.14 (m, 1H) 3.22 (m, J=9.19 Hz, 1H) 3.40 (d, J=4.30 Hz, 1H) 5.13-5.34 (m, 1H) 6.75-6.98 (m, 2H) 7.16-7.53 (m, 8H) 7.75 (m, J=9.00, 5.09 Hz, 1H) 7.94 (d, J=6.85 Hz, 1H). LC-MS (ESI) m/z 482.1 [M+H]+.

Provenance & Evidence