Potassium Carbonate → methyl 5-[(4S)-2-oxo-3-(2-oxo-2-{[3-(trifluoromethyl)phenyl]amino]ethyl)-4-(propan-2-yl)imidazolidin-1-yl}pyridine-2-carboxylate

Participants

Reaction Conditions

Reaction Steps

A suspension of 2-[(5S)-3-(6-bromopyridin-3-yl)-2-oxo-5-(propan-2-yl)imidazolidin-1-yl]-N-[3-(trifluoromethyl)phenyl]acetamide (100 mg), potassium carbonate (43 mg), and Pd(PPh3)4 (24 mg) in DMF/ethanol (2:1, 2.1 mL) was stirred under atmosphere of carbon monoxide gas at 80° C. for 1.5 hr. Saturated aqueous sodium hydrogen carbonate solution was added thereto, the mixture was washed with ethyl acetate, and the organic layer was washed with water and brine. After concentration under reduced pressure, the residue was purified by preparative HPLC to afford methyl 5-[(4S)-2-oxo-3-(2-oxo-2-{[3-(trifluoromethyl)phenyl]amino]ethyl)-4-(propan-2-yl)imidazolidin-1-yl}pyridine-2-carboxylate (50 mg).

Provenance & Evidence