Cesium carbonate → HCID 58327916, compound

Participants

Reaction Steps

Anhydrous DMF (2 mL) was added to a mixture of 1-(2-chloro-3,6-difluorobenzyl)-7-(1H-pyrazol-4-yl)-1,2,3,4-tetrahydro-pyrido[2,3-b]pyrazine (57 mg, 0.000158 mol), cesium carbonate (0.110 g) and 2-dimethylaminoethyl chloride HCl (0.025 g). The reaction mixture was stirred at room temperature under nitrogen for 13 days and then concentrated and dissolved in methylene chloride. The organic phase was washed with water, dried with magnesium sulfate, filtered, and concentrated. The residue was purified on normal phase silica gel chromatography to give the title compound as an off-white solid (9% yield). LCMS: m/z=433.13 (M+H+), 1H-NMR (CDCl3, 400 MHz) δ 2.30 (6H, s), 2.79 (2H, t, J=6.8 Hz), 3.29 (2H, t, J=4.7 Hz), 3.51 (2H, m), 4.24 (2H, t, J=6.8 Hz), 4.50 (2H, s), 4.77 (1H, bs), 6.97 (1H, s), 7.02 (1H, m), 7.12 (1H, m), 7.60 (1H, s), 7.63 (1H, d, J=1.5 Hz), 7.66 (1H, s).

Provenance & Evidence