2-Bromopropane → HCID 11742023, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 1-[1-(6-methoxy-3-pyridyl)-5-phenylpyrazole-3-carbonyl]piperazine (0.446 g) obtained in Example 16 in N,N-dimethylformamide (7.5 mL), potassium carbonate (0.505 g) and isopropyl bromide (0.30 mL) were added at room temperature, and the mixture was stirred at 60° C. for 16 hours, and then cooled in air. The reaction mixture was partitioned between water and ethyl acetate. Subsequently, the aqueous layer was extracted with ethyl acetate. The organic layers were combined and washed with saturated brine, followed by drying over sodium sulfate anhydrate. After filtration, the solvent was removed under reduced pressure. The residue was purified through silica gel column chromatography (chloroform-methanol), to thereby give the title compound as an oily product (0.283 g, 57%).

Provenance & Evidence