反应详情

To a solution of the amino compound 120 (400 mg, 1.08 mmol) in DMF (10 mL), 3-(2-fluorophenylamino)-3-oxopropanoic acid (444 mg, 2.25 mmol), EDC (519 mg, 2.70 mmol) was added HOBT (364 mg, 2.70 mmol). The reaction mixture was allowed to stir for 1 hr. The solution was extracted with EtOAc and the extract was washed with water, aqueous ammonium chloride and brine then dried over anhydrous magnesium sulfate, filtered and evaporated under reduced pressure. The residue was purified by flash chromatography (eluents DCM-MeOH, 98:2, 95:5) to afford title compound 117 (348 mg, 58% yield) as a white solid. 1H NMR (DMSO-d6). δ ppm: 10.58 (s, 1H), 10.06 (s, 1H), 8.52 (d, J=5.6 Hz, 1H), 8.10-7.76 (m, 1H), 7.94 (d, J=1.2 Hz, 1H), 7.88 (dd, J=2.4 and 13.2 Hz, 1H), 7.74 (s, 1H)), 7.51 (t, J=8.8 Hz, 1H), 7.43 (dd, J=1.6 and 8.8 Hz, 1H), 7.39 (d, J=1.2 Hz, 1H), 7.32-7.25 (m, 1H), 7.21-7.14 (m, 2H), 6.66 (d, J=5.6 Hz, 1H), 4.29 (q, J=7.2 Hz, 2H), 3.62 (s, 2H), 1.34 (t, J=7.2 Hz, 3H). MS (m/z): 534.1 (M+H).

1. extractionThe solution was extracted with EtOAc
2. washthe extract was washed with water, aqueous ammonium chloride and brine
3. dry with materialthen dried over anhydrous magnesium sulfate
4. filtrationfiltered
5. customevaporated under reduced pressure
6. customThe residue was purified by flash chromatography (eluents DCM-MeOH, 98:2, 95:5)