Water → 6-bromo-N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-1-(1-phenylethyl)-1H-pyrazolo[3,4-b]pyridine-4-carboxamide

HRID 1854060Notes

Reaction equation

HRID 1854060 reaction equation
[Br:1][C:2]1[CH:3]=[C:4]([C:11]([NH:13][CH2:14][C:15]2[C:16](=[O:23])[NH:17][C:18]([CH3:22])=[CH:19][C:20]=2[CH3:21])=[O:12])[C:5]2[CH:10]=[N:9][NH:8][C:6]=2[N:7]=1.C([O-])([O-])=O.[K+].[K+].Br[CH:31]([C:33]1[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=1)[CH3:32].O>CN(C=O)C>[Br:1][C:2]1[CH:3]=[C:4]([C:11]([NH:13][CH2:14][C:15]2[C:16](=[O:23])[NH:17][C:18]([CH3:22])=[CH:19][C:20]=2[CH3:21])=[O:12])[C:5]2[CH:10]=[N:9][N:8]([CH:31]([C:33]3[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=3)[CH3:32])[C:6]=2[N:7]=1

Participants

6

Reactant 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 11454(1-Bromoethyl)benzeneHCID 867034116-bromo-N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-1H-pyrazolo[3,4-b]pyridine-4-carboxamide

Product 1

HCID 867034286-bromo-N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-1-(1-phenylethyl)-1H-pyrazolo[3,4-b]pyridine-4-carboxamideYield 92.8%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

6-Bromo-N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-1H-pyrazolo[3,4-b]pyridine-4-carboxamide (0.25 g, 0.66 mmol) was dissolved in DMF (3 mL) and K2CO3 (0.17 g, 0.79 mmol) and (1-bromoethyl)benzene (0.148 g, 0.799 mmol) was added to it. The reaction mixture was refluxed for overnight. On completion, water was added to it. Extraction was carried out using DCM; the combined organic layers were washed with water, brine and dried over anhydrous Na2SO4. Solvent was removed under reduced pressure and residue was purified by silica gel column chromatography to obtain the desired intermediate (0.26 g, 92.8%).

Workup

  1. temperatureThe reaction mixture was refluxed for overnight
  2. extractionExtraction
  3. washthe combined organic layers were washed with water, brine
  4. dry with materialdried over anhydrous Na2SO4
  5. customSolvent was removed under reduced pressure and residue
  6. customwas purified by silica gel column chromatography

Sources & evidence

ORD record
ord-cec8af08e45d4e16959429818e4f150b
Source dataset
uspto-grants-2015_02
Patent number
US08962620B2

Reaction notes

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