Triethylamine → HCID 69252826, compound

Participants

Reaction Steps

Propylphosphonic anhydride (50% in DMF, 2.72 mL, 4.7 mmol, 2 equiv) is added to a solution of 4-(6-methylamino-pyrimidin-4-ylamino)-benzoic acid (0.570 g, 2.33 mmol), N-ethyl-piperazine (0.33 mL, 2.57 mmol, 1.1 equiv), DMAP (7 mg), and Et3N (3.3 mL, 23.3 mmol, 10 equiv) in DMF (25 mL), at RT and under an argon atmosphere. The reaction mixture is stirred at RT for 1 h, diluted with EtOAc and washed with H2O. The aqueous layer is extracted with EtOAc. The combined organic phase is washed with brine, dried (Na2SO4), filtered and concentrated. The residue is purified by silica gel column chromatography (DCM→DCM/2 N NH3 in MeOH, 86:14) to provide the title compound as a yellow foam: ES-MS: 341.2 [MH]+; tR=1.00 min (system 1); Rf=0.33 (CH2Cl2/2 N NH3 in MeOH, 9:1).

Provenance & Evidence