Ethanolamine → HCID 69665754, compound

Participants

Reaction Conditions

Reaction Steps

Chlorosulphonic acid (150 μL, 2.16 mmol) was added dropwise to solution of 2-anilino-4-(1-ethyl-2-methylimidazol-5-yl)pyrimidine (Example 28; 150 mg, 0.54 mmol) in thionyl chloride (3 ml) cooled at 0° C. and the mixture stirred at 0° C. for 10 minutes then heated at 90° C. for 90 minutes. The volatiles were removed by evaporation and the residue was dried under high vacuum (<2 mmHg) for 1 hour. The resulting solid was placed under nitrogen and a solution of ethanolamine (494 mg, 8.1 mmol) in MeOH (3 ml) added. The mixture was stirred for 30 minutes and the volatiles were evaporated in vacuo. Water (20 ml) was added and the precipitated solid was collected by filtration, washed with water (2×10 ml) and ether (2×10 ml) and and dried under vacuum at 60° C. to yield the title compound (177 mg, 81%) as a beige solid. NMR 1.22 (t, 3H), 2.41 (s, 3H), 2.80 (s, 2H), 3.38 (q, 2H), 4.63 (m, 3H), 7.20 (d, 1H), 7.36 (s, 1H), 7.77 (s, 1H), 7.82 (d, 2H), 7.91 (d, 2H), 8.34 (d, 1H), 9.85, (s, 1H); m/z 403.

Provenance & Evidence