Dimethylformamide → HCID 68651257, compound

Participants

Reaction Conditions

Reaction Steps

3-Amino-6-(3-hydroxyphenyl)-N-methylpyrazine-2-carboxamide (179 mg, 0.8 mmol) was taken into DMF (3 mL) followed by addition of cesium carbonate (1.3 g, 4 mmol) and 2-(bromoethyl)benzene (550 uL, 4 mmol). The mixture was heated to 85° C. for 12 hours then allowed to cool to room temperature. The mixture was diluted with an excess of ethyl acetate and washed with water (3×) then brine and dried over anhydrous magnesium sulfate. Filtration and concentration in vacuo followed by purification of the residue using silica gel flash chromatography using ethyl acetate:hexanes (2:3) as eluent. The pure fractions were combined and concentrated then dried in vacuo to give 3-amino-N-methyl-6-{3-[(2-phenylethyl)oxy]phenyl}pyrazine-2-carboxamide (86 mg, 31% yield) as a yellow solid. 1H NMR (400 MHz, d6-DMSO): 8.83 (s, 1H), 8.82 (br m, 1H), 7.74 (d, 1H), 7.67 (tr, 1H), 7.38-7.31 (m, 6H), 7.26-7.22 (m, 1H), 6.95 (d tr, 1H), 4.31 (tr, 2H), 3.08 (tr, 2H), 2.85 (d, 3H); MS (EI) for C20H21N4O2: 349 (MH+).

Provenance & Evidence