2,6-Lutidine → HCID 57561157, compound

Participants

Reaction Steps

6-Methoxymethyl-3-(3-trifluoromethyl-pyridin-2-yl)-pyrido-[2,3-b]pyrazin-8-ol (146 mg, 0.436 mmol) is dissolved in a solution of CHCl3 (20 mL), POCl3 (0.12 ml, 1.31 mmol) and 2,6-lutidine (0.2 mL, 1.31 mmol). The mixture is heated at reflux overnight. The reaction is concentrated under reduced pressure. EtOAc (30 mL) is added and the mixture is extracted with NaHCO3 (aq) (30 mL) and brine (30 mL). The organic extract is dried over Na2SO4 and the solvent removed under reduced pressure. The crude product is purified by silica gel preparatory TLC eluting with hexanes/EtOAc (1:1) to yield the title compound as a light yellow oil that solidifies upon standing.

Provenance & Evidence