Potassium Carbonate → 4-[N-[1-[N-(benzofuran-2-ylcarbonyl)amino]cyclohexanecarbonyl]amino]-1-(2-methylsulfonylphenyl)piperidin-3-ol

Participants

Reaction Conditions

Reaction Steps

To the solution of 4-[N-[1-[N-(benzofuran-2-ylcarbonyl)amino]cyclohexanecarbonyl]amino]-3-piperidinol hydrochloride (10 g, 23.7 mmol) obtained in Step 2 and 1-flourophenyl methyl sulfone (4.9 g, 28.4 mmol) in 50 ml of dimethylformamide, was added potassium carbonate (8.2 g, 59.3 mmol). The reaction mixture was stirred overnight at about 100° C., cooled to room temperature, diluted with 200 ml of ethyl acetate, and washed with brine. The resulting organic layer was dried and concentrated on sodium sulfate. The resulting residue was purified with column chromatography to give 4.9 g of the titled compound as white solid.

Provenance & Evidence