Water → HCID 57814390, compound

Participants

Reaction Conditions

Reaction Steps

A suspension of 0.63 mmol of 4-(8-hydroxyl-5,6,7,8-tetrahydroimidazo[1,5-a]pyridin-8-yl)-benzonitrile (Example 19) in 2 ml of tetrahydrofuran is added at 0° C. to a suspension of 0.76 mmol of sodium hydride (60% dispersion in paraffin) in 1 ml of tetrahydrofuran. The reaction mixture is subsequently stirred at 20° C. for 30 minutes and then cooled again to 0° C. A solution of 0.63 mmol of methyl iodide in 3 ml of N,N-dimethylformamide is added dropwise and the reaction mixture is subsequently stirred at room temperature for 16 hours. The reaction mixture is poured into water and extracted with tertbutyl methyl ether (3×). The combined organic phases are dried over sodium sulphate and evaporated. The residue is digested with diethyl ether and the solid is isolated by filtration and dried. The title compound is obtained as a white solid. Rf=0.14 (toluene/methanol 85:15), Rt=4.92 (Gradient I).

Provenance & Evidence