反应详情

温度

80 °C

To a solution of chiral (4-{[(2′S,3′R,4′S,5′R)-6-chloro-4′-(3-chloro-2-fluoro-phenyl)-2′-(2,2-dimethyl-propyl)-2-oxo-1,2-dihydro-spiro[indole-3,3′-pyrrolidine]-5′-carbonyl]amino}-3-methoxy-phenyl)-acetic acid (0.1 g, 0.17 mmol) prepared in Example 160 in anhydrous DMF (2 mL) were added EDCI (64 mg, 0.33 mmol), HOBt (45 mg, 0.33 mmol), NH4Cl (89 mg, 1.67 mmol), and triethylamine (34 mg, 0.33 mmol) sequentially. The reaction mixture was heated at 80° C. for 3 h. The mixture was cooled to room temperature, then partitioned between ethyl acetate and water. The organic layer was separated, and aqueous layer was extracted with ethyl acetate twice. The combined organic extract was washed with water, brine, dried over MgSO4, and concentrated. The residue was purified by chromatography (50-100% EtOAc in hexanes) to give chiral (2′S,3′R,4′S,5′R)-6-chloro-4′-(3-chloro-2-fluoro-phenyl)-2′-(2,2-dimethyl-propyl)-2-oxo-1,2-dihydro-spiro[indole-3,3′-pyrrolidine]-5′-carboxylic acid (4-carbamoylmethyl-2-methoxy-phenyl)-amide as a off white solid (81 mg, 77%).

1. temperatureThe mixture was cooled to room temperature
2. custompartitioned between ethyl acetate and water
3. customThe organic layer was separated
4. extractionaqueous layer was extracted with ethyl acetate twice
5. extractionThe combined organic extract
6. washwas washed with water, brine
7. dry with materialdried over MgSO4
8. concentrationconcentrated
9. customThe residue was purified by chromatography (50-100% EtOAc in hexanes)