Methanol → N-(5-fluoro-2-oxo-2,3-dihydro-1H-indol-6-yl)-2-hydroxy-2-methyl-propionamide

HRID 1811303Notes

Reaction equation

HRID 1811303 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+].[CH3:23]O>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:14]([OH:16])([CH3:15])[CH3:23])[NH:7][C:6](=[O:20])[CH2:5]2

Participants

5

Reactant 3

HCID 887MethanolHCID 14798Sodium HydroxideHCID 59250052acetic acid 1-(5-fluoro-2-oxo-2,3-dihydro-1H-indol-6-ylcarbamoyl)-ethyl ester

Product 1

HCID 59250047N-(5-fluoro-2-oxo-2,3-dihydro-1H-indol-6-yl)-2-hydroxy-2-methyl-propionamideYield 35.6%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A stirred mixture of acetic acid 1-(5-fluoro-2-oxo-2,3-dihydro-1H-indol-6-ylcarbamoyl)-ethyl ester (720 mg, 2.45 mmol) in methanol (5 ml) and water (5 ml) was added with sodium hydroxide (200 mg, 50 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 N-(5-fluoro-2-oxo-2,3-dihydro-1H-indol-6-yl)-2-hydroxy-2-methyl-propionamide (220 mg, 35.6%) 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-4911840ea01d4663ad2ca6a4e625e6e4
Source dataset
uspto-grants-2013_01
Patent number
US08362251B2

Reaction notes

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