Potassium Carbonate → HCID 68923923, 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 (0.32 g, 0.74 mmol) was dissolved in 10 ml DMF at room temperature and K2CO3 (0.51 g, 3.7 mmol) was added. 3-Chloro-2,2-dimethyl-propionic acid ethyl ester (0.25 g, 1.52 mmol) was added and the reaction was allowed to heat to 90° C. for 6 days. 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 (60% EtOAc/40% Hexane) to afford the (2S,4R)-3-(4-{4-[acetyl(4-chloro-phenyl)-amino]-2-methyl-3,4-dihydro-2H-quinoline-1-carbonyl}-phenoxy)-2,2-dimethyl-propionic acid ethyl ester (0.13 g, 32%).

Provenance & Evidence