Ethyl bromoacetate → HCID 86616389, compound

Participants

Reaction Conditions

Reaction Steps

To a stirred solution of (5R)-5-(3,5-difluorophenyl)-2,2-dimethylmorpholin-3-one from Step G (150 mg, 0.62 mmol) in DMF (2 mL) at 0° C. was added NaH (27 mg of a 60% dispersion in oil, 0.68 mmol). After 10 min, ethyl bromoacetate (104 mg, 0.62 mmol) was added and the mixture was stirred at 0° C. for 30 min. Saturated aqueous NaHCO3 (5 mL) was added and the mixture was extracted with EtOAc (2×10 mL). The combined organic layers were dried over Na2SO4, filtered, and concentrated in vacuo. The crude product was purified by silica gel chromatography, eluting with a gradient of hexane:EtOAc—95:5 to 70:30, to give the title compound. MS: m/z=328 (M+1).

Provenance & Evidence