Water → 1-(1-Methylethyl)-3-{6-[(3-methyl-3H-imidazo[4,5-b]pyridin-2-yl)oxy]pyridin-3-yl}-1H-pyrazolo[4,3-b]pyridine

HRID 573329Notes

Reaction equation

HRID 573329 reaction equation
[CH3:1][CH:2]([N:4]1[C:12]2[C:7](=[N:8][CH:9]=[CH:10][CH:11]=2)[C:6]([C:13]2[CH:14]=[CH:15][C:16]([OH:19])=[N:17][CH:18]=2)=[N:5]1)[CH3:3].[H-].[Na+].[CH3:22][N:23]1[C:27]2=[N:28][CH:29]=[CH:30][CH:31]=[C:26]2[N:25]=[C:24]1S(C)(=O)=O.O>CN(C=O)C>[CH3:3][CH:2]([N:4]1[C:12]2[C:7](=[N:8][CH:9]=[CH:10][CH:11]=2)[C:6]([C:13]2[CH:18]=[N:17][C:16]([O:19][C:24]3[N:23]([CH3:22])[C:27]4=[N:28][CH:29]=[CH:30][CH:31]=[C:26]4[N:25]=3)=[CH:15][CH:14]=2)=[N:5]1)[CH3:1]

Participants

6

Reactant 4

HCID 962WaterHCID 24758Sodium hydrideHCID 585773713-Methyl-2-(methylsulfonyl)-3H-imidazo[4,5-b]pyridineHCID 178456626HCID 178456626, compound

Product 1

HCID 866889851-(1-Methylethyl)-3-{6-[(3-methyl-3H-imidazo[4,5-b]pyridin-2-yl)oxy]pyridin-3-yl}-1H-pyrazolo[4,3-b]pyridineYield 20%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a stirred mixture of 5-[1-(1-Methylethyl)-1H-pyrazolo[4,3-b]pyridin-3-yl]pyridin-2-ol (76 mg) in DMF (4 mL) was added NaH (60% in oil, 12.6 mg) at room temperature. The mixture was stirred at room temperature for 30 min and then 3-methyl-2-(methylsulfonyl)-3H-imidazo[4,5-b]pyridine (76 mg) was added. The mixture was exposed to microwave irradiation at 180° C. for 30 min, treated with water, and extracted with AcOEt. The organic layer was dried over MgSO4 and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (AcOEt/hexane). The product was crystallized from AcOEt/hexane to give the title compound (23.0 mg).

Workup

  1. customirradiation at 180° C. for 30 min
  2. extractionextracted with AcOEt
  3. dry with materialThe organic layer was dried over MgSO4
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified by silica gel column chromatography (AcOEt/hexane)
  6. customThe product was crystallized from AcOEt/hexane

Sources & evidence

ORD record
ord-636e72f6eae044b689050f737a8d29a7
Source dataset
uspto-grants-2015_05
Patent number
US09029536B2

Reaction notes

Loading…