反应详情

To a solution of 46 (333 mg, 0.631 mmol) in DMF (8 mL) at RT was added 3-oxo-3-(phenylamino)propanoic acid (226 mg, 2 eq, 1.262 mmol) and EDC (242 mg, 2 eq, 1.262 mmol), and the reaction mixture was stirred at RT for 24 hours. It was then concentrated to dryness then purified by column chromatography (eluent a gradient of 80% EtOAc in hexane to EtOAc), to afford 47a (357 mg, 82% yield) as a white solid. MS (m/z): 689.4 (M+H).

1. concentrationIt was then concentrated to dryness
2. customthen purified by column chromatography (eluent a gradient of 80% EtOAc in hexane to EtOAc),