Cyclopropanecarbonyl chloride → HCID 25127855, compound

HRID 1874404Notes

Reaction equation

HRID 1874404 reaction equation
[NH2:1][C:2]1[N:3]=[C:4]2[CH:9]=[CH:8][C:7]([O:10][C:11]3[CH:12]=[CH:13][C:14]([F:27])=[C:15]([NH:17][C:18]([C:20]4[N:24]([CH3:25])[N:23]=[C:22]([CH3:26])[CH:21]=4)=[O:19])[CH:16]=3)=[CH:6][N:5]2[CH:28]=1.[CH:29]1([C:32](Cl)=[O:33])[CH2:31][CH2:30]1.C(=O)([O-])O.[Na+]>CN(C)C(=O)C.O>[CH:29]1([C:32]([NH:1][C:2]2[N:3]=[C:4]3[CH:9]=[CH:8][C:7]([O:10][C:11]4[CH:12]=[CH:13][C:14]([F:27])=[C:15]([NH:17][C:18]([C:20]5[N:24]([CH3:25])[N:23]=[C:22]([CH3:26])[CH:21]=5)=[O:19])[CH:16]=4)=[CH:6][N:5]3[CH:28]=2)=[O:33])[CH2:31][CH2:30]1

Participants

6

Reactant 3

HCID 77637Cyclopropanecarbonyl chlorideHCID 516892Sodium BicarbonateHCID 57749303HCID 57749303, compound

Product 1

HCID 25127855HCID 25127855, compoundYield 61.4%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 31374DimethylacetamideSolvent

Procedure

To a solution of N-{5-[(2-aminoimidazo[1,2-a]pyridin-6-yl)oxy]-2-fluorophenyl}-1,3-dimethyl-1H-pyrazole-5-carboxamide (730 mg, 1.92 mmol) in N,N-dimethylacetamide (7 mL) was added with stirring under ice-cooling cyclopropanecarbonyl chloride (262 μL, 2.88 mmol), and the mixture was stirred at room temperature for 2 hr. The reaction mixture was neutralized with saturated aqueous sodium hydrogen carbonate solution, diluted with water, and extracted with ethyl acetate. The organic layer was washed with water and saturated brine, dried over anhydrous magnesium sulfate and filtrated. The filtrate was concentrated under reduced pressure, and the residue was purified by column chromatography (NH silica gel, ethyl acetate) and recrystallized from ethyl acetate-ethanol to give the title compound (529 mg, 61%) as a white solid.

Workup

  1. stirringthe mixture was stirred at room temperature for 2 hr
  2. extractionextracted with ethyl acetate
  3. washThe organic layer was washed with water and saturated brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. filtrationfiltrated
  6. concentrationThe filtrate was concentrated under reduced pressure
  7. customthe residue was purified by column chromatography (NH silica gel, ethyl acetate)
  8. customrecrystallized from ethyl acetate-ethanol

Sources & evidence

ORD record
ord-04f5b53c1a1d4e13894b60e317e06bf2
Source dataset
uspto-grants-2012_11
Patent number
US08304557B2

Reaction notes

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