Acetic Acid → HCID 11162137, compound

Participants

Reaction Conditions

Reaction Steps

38 mg of 3-{1-[2-(2-fluoro-phenyl)-ethyl]-2-oxo-2,5-dihydro-1H-pyrrol-3-yl}-propionic acid methyl ester (x) prepared by the above Step 4 was dissolved in methanol solution (0.13 mmol) and then 1.7 M methanolic suspension solution containing NH2OK (0.38 ml, 0.65 mmol) was added thereto at 0° C. and the resulting mixture was stirred for 8 hrs at room temperature. The resulting mixture was neutralized with 0.02 ml of acetic acid, diluted with 10% methanol/chloroform solution, filtered and concentrated in vacuo. The resulting compound was purified by Silica gel column chromatography with a solvent mixture mixed with methanol and chloroform (1:9) as an eluant to give 25 mg of 3-{1-[2-(2-fluoro-phenyl)-ethyl]-2-oxo-2,5-dihydro-1H-pyrrol-3-yl}-N-hydroxy-propionamide (28y) (yield: 65%).

Provenance & Evidence