Sodium Hydroxide → (S)-N-(5-Fluoro-2-oxo-2,3-dihydro-1H-indol-6-yl)-2-hydroxy-propionamide

HRID 2365100Notes

Reaction equation

HRID 2365100 reaction equation
[F:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][C:10]=1[NH:11][C:12]([CH:14]([O:16]C(=O)C)[CH3:15])=[O:13])[NH:7][C:6](=[O:20])[CH2:5]2.[OH-].[Na+]>CO.O>[F:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][C:10]=1[NH:11][C:12](=[O:13])[C@@H:14]([OH:16])[CH3:15])[NH:7][C:6](=[O:20])[CH2:5]2

Participants

5

Reactant 2

HCID 14798Sodium HydroxideHCID 59250052acetic acid 1-(5-fluoro-2-oxo-2,3-dihydro-1H-indol-6-ylcarbamoyl)-ethyl ester

Product 1

HCID 59250066(S)-N-(5-Fluoro-2-oxo-2,3-dihydro-1H-indol-6-yl)-2-hydroxy-propionamideYield 42.5%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 962WaterSolvent

Procedure

The stirred mixture of acetic acid 1-(5-fluoro-2-oxo-2,3-dihydro-1H-indol-6-ylcarbamoyl)-ethyl ester (750 mg, 2.67 mmol) in methanol (5 ml) and water (5 ml) was added with sodium hydroxide (240 mg, 60 mmol). The resulting mixture was stirred at room temperature overnight and concentrated under reduced pressure. The residue was extracted with ethyl acetate (100×3) and water (100×3). The organic extracts were dried with anhydrous sodium sulfate, filtered and concentrated under reduced pressure to give (S)—N-(5-Fluoro-2-oxo-2,3-dihydro-1H-indol-6-yl)-2-hydroxy-propionamide (270 mg, 42%) as a white solid.

Workup

  1. concentrationconcentrated under reduced pressure
  2. extractionThe residue was extracted with ethyl acetate (100×3) and water (100×3)
  3. dry with materialThe organic extracts were dried with anhydrous sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-869e8056b1ec4490b599d298900cbb2f
Source dataset
uspto-grants-2014_04
Patent number
US08697692B2

Reaction notes

Loading…