Hydrogen Peroxide → 2-(3-(1-cyclopentyl-4-oxo-4,5-dihydro-1H-pyrazolo[4,3-c]pyridin-3-yl)phenyl)acetamide

HRID 2206161Notes

Reaction equation

HRID 2206161 reaction equation
[CH:1]1([N:6]2[C:14]3[CH:13]=[CH:12][NH:11][C:10](=[O:15])[C:9]=3[C:8]([C:16]3[CH:17]=[C:18]([CH2:22][C:23]#[N:24])[CH:19]=[CH:20][CH:21]=3)=[N:7]2)[CH2:5][CH2:4][CH2:3][CH2:2]1.C(=O)([O-])[O-:26].[K+].[K+].OO.O>CS(C)=O>[CH:1]1([N:6]2[C:14]3[CH:13]=[CH:12][NH:11][C:10](=[O:15])[C:9]=3[C:8]([C:16]3[CH:17]=[C:18]([CH2:22][C:23]([NH2:24])=[O:26])[CH:19]=[CH:20][CH:21]=3)=[N:7]2)[CH2:5][CH2:4][CH2:3][CH2:2]1

Participants

6

Reactant 4

HCID 784Hydrogen PeroxideHCID 962WaterHCID 11430Potassium CarbonateHCID 137010696(3-(1-cyclopentyl-4-oxo-4,5-dihydro-1H-pyrazolo[4,3-c]pyridin-3-yl)phenyl)acetonitrile

Product 1

HCID 1370106552-(3-(1-cyclopentyl-4-oxo-4,5-dihydro-1H-pyrazolo[4,3-c]pyridin-3-yl)phenyl)acetamideYield 70.1%

Reagents, catalysts & solvents 1

HCID 679Dimethyl SulfoxideSolvent

Procedure

To a solution of (3-(1-cyclopentyl-4-oxo-4,5-dihydro-1H-pyrazolo[4,3-c]pyridin-3-yl)phenyl)acetonitrile (58.3 mg) obtained in Example 128 in DMSO (5 mL) were added potassium carbonate (30.4 mg) and 30% aqueous hydrogen peroxide (0.056 mL), and the mixture was stirred for 3 days. To the reaction mixture was added water, and the mixture was extracted with ethyl acetate. The organic layer was washed successively with water and saturated brine, dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (methanol/ethyl acetate), and the obtained solid was washed with ethyl acetate/diisopropyl ether to give the title compound (43.2 mg).

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe organic layer was washed successively with water and saturated brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified by silica gel column chromatography (methanol/ethyl acetate)
  6. washthe obtained solid was washed with ethyl acetate/diisopropyl ether

Sources & evidence

ORD record
ord-37b792ec1bf94d21a1498f46c39833a7
Source dataset
uspto-grants-2016_06
Patent number
US09371320B2

Reaction notes

Loading…