Potassium Carbonate → HCID 57595536, compound

Participants

Reaction Conditions

Reaction Steps

(2S,4R)-N-(4-Chloro-phenyl)-N-[1-(4-hydroxy-benzoyl)-2-methyl-1,2,3,4-tetrahydro-quinolin-4-yl]-acetamide (0.126 g, 0.242 mmol) was dissolved in 3 ml DMF at room temperature and K2CO3 (0.267 g, 1.94 mmol) was added. 4-Bromo-2,2-dimethyl-butyric acid methyl ester (0.202 g, 0.969 mmol, prepared according to the procedure from Tetrahedron 1994, 50(32), 9825-30) was added and the reaction was allowed to heat to 80° C. overnight. The reaction mixture was concentrated in vacuo. The residue was partitioned between ethyl acetate and water, then extracted three times with ethyl acetate, dried over MgSO4, filtered and concentrated down. The crude residue was purified by silica gel chromatography (50% EtOAc/50% Hexane) to afford the (2S,4R)-4-(4-{4-[acetyl(4-chloro-phenyl)-amino]-2-methyl-3,4-dihydro-2H-quinoline-1-carbonyl}-phenoxy)-2,2-dimethyl-butyric acid methyl ester (0.105 g, 77%).

Provenance & Evidence