Water → HCID 23025094, compound

Participants

Reaction Steps

To a solution of ethyl 3-[3-hydroxy-1-(4-hydroxybenzyl)-1H-pyrazol-4-yl]propionate (435 mg) in N,N-dimethylformamide (10 ml), sodium hydride (60%, oily, 120 mg) was added at 0° C., and then the solution was stirred at room temperature for 30 minutes. 3-Picolyl chloride (574 mg) was added to the reaction mixture, which was stirred at room temperature for one hour. The reaction mixture was poured into water, which was extracted with ethyl acetate. The ethyl acetate layer was washed with dilute hydrochloric acid, then, with saturated aqueous sodium chloride solution, and dried (MgSO4) and concentrated. The residue was subjected to silica gel column chromatography, and ethyl 3-[3-(3-pyridylmethoxy)-1-[4-(3-pyridylmethoxy)benzyl]-1H-pyrazol-4-yl]propionate (533 mg, yield: 75%) was obtained as a colorless oily substance from the fraction eluted with ethyl acetate.

Provenance & Evidence