Ethanol → HCID 45380498, compound

Participants

Reaction Conditions

Reaction Steps

To a stirred solution of (2R,4S,4aS)-rel-11-fluoro-2,4-dimethyl-2′,4′,6′-trioxo-1,1′,2,3′,4,4′,4a,6′-octahydro-2′H,6H-spiro[1,4-oxazino[4,3-a][1,2]oxazolo[4,5-g]quinoline-5,5′-pyrimidine]-8-carbothioamide (Intermediate 575, 54 mg, 0.128 mmol) in mixture of EtOH:DMF (1 mL: 0.5 mL) were added ethyl bromopyruvate (47 mg, 0.24 mmol) and molecular sieves, and the mixture was stirred at 100° C. for 12 hours. The reaction mixture was concentrated, the residue was purified by silica gel column chromatography to give product as solid. Yield: 13 mg (20%).

Provenance & Evidence