2-Methoxyethylamine → HCID 22063892, compound

Participants

Reaction Steps

To a benzene (3 mL) solution of [4-(1,3-Diethyl-2-oxo-2,3-dihydro-1H-benzoimidazol-5-yl)-3-m-tolyl-pyrazol-1-yl]-acetaldehyde (0.034 g) was added methoxyethylamine (0.03 mL) and 4 Å molecular sieves. The reaction was allowed to stand at 23° C. for 1 hour then was filtered and concentrated. The resulting oil was diluted with methanol (2 mL), 4 Å molecular sieves were added and the mixture was treated with sodium cyanoborohydride (0.02 g). After stirring for 18 hours the mixture was poured onto ethyl acetate/saturated sodium bicarbonate and extracted. The organic layer was dried over sodium sulfate and concentrated. Preparative thin layer chromatography gave 1,3-Diethyl-5-{1-[2-(2-methoxy-ethylamino)-ethyl]-3-m-tolyl-1H-pyrazol-4-yl}-1,3-dihydro-benzoimidazol-2-one (0.014 g). Subsequent treatment with 1M hydrochloric acid in ether gave the hydrochloride salt.

Provenance & Evidence