Dimethyl Sulfoxide → N-(3,4-Dimethylisoxazol-5-yl)-4-(4-phenylpyridin-2-yl)piperazine-1-carboxamide

Participants

Reaction Steps

A solution of 2,2,2-trichloroethyl(3,4-dimethylisoxazol-5-yl)carbamate (120 mg, 0.418 mmol), 1-(4-phenylpyridin-2-yl)piperazine (100 mg, 0.418 mmol), diisopropylethylamine (0.146 ml, 0.836 mmol) and dimethylsulfoxide (2 ml) was stirred at 70° C. for 3 hours, then the reaction solution was poured into water, and extracted with ethyl acetate. The extract was washed with water, and dried over anhydrous magnesium sulfate. The solvent was distilled away under reduce pressure, and the residue was recrystallized from ethyl acetate to give the titled compound 58.0 mg (36.7%) as solid product.

Provenance & Evidence