Cyclopropanecarbonyl chloride → N-[3-({2-[(cyclopropylcarbonyl)amino]imidazo[1,2-a]pyridin-6-yl}oxy)phenyl]-6-methylpyridine-2-carboxamide

HRID 1874548Notes

Reaction equation

HRID 1874548 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]=[C:13]([NH:17][C:18]([C:20]4[CH:25]=[CH:24][CH:23]=[C:22]([CH3:26])[N:21]=4)=[O:19])[CH:14]=[CH:15][CH:16]=3)=[CH:6][N:5]2[CH:27]=1.[CH:28]1([C:31](Cl)=[O:32])[CH2:30][CH2:29]1>CN(C)C(=O)C.C(=O)([O-])O.[Na+]>[CH:28]1([C:31]([NH:1][C:2]2[N:3]=[C:4]3[CH:9]=[CH:8][C:7]([O:10][C:11]4[CH:12]=[C:13]([NH:17][C:18]([C:20]5[CH:25]=[CH:24][CH:23]=[C:22]([CH3:26])[N:21]=5)=[O:19])[CH:14]=[CH:15][CH:16]=4)=[CH:6][N:5]3[CH:27]=2)=[O:32])[CH2:30][CH2:29]1

Participants

5

Reactant 2

HCID 77637Cyclopropanecarbonyl chlorideHCID 57749229N-{3-[(2-aminoimidazo[1,2-a]pyridin-6-yl)oxy]phenyl}-6-methylpyridine-2-carboxamide

Product 1

HCID 57749188N-[3-({2-[(cyclopropylcarbonyl)amino]imidazo[1,2-a]pyridin-6-yl}oxy)phenyl]-6-methylpyridine-2-carboxamideYield 29%

Reagents, catalysts & solvents 2

HCID 31374DimethylacetamideSolventHCID 516892Sodium BicarbonateSolvent

Procedure

To a solution of N-{3-[(2-aminoimidazo[1,2-a]pyridin-6-yl)oxy]phenyl}-6-methylpyridine-2-carboxamide (300 mg, 0.835 mmol) in N,N-dimethylacetamide (5 mL) was added cyclopropanecarbonyl chloride (76.0 μL, 0.836 mmol), and the mixture was stirred at room temperature for 10 hr. The reaction mixture was diluted with aqueous sodium hydrogen carbonate solution and extracted with ethyl acetate. The organic layer was washed with aqueous sodium hydrogen carbonate solution and saturated brine, dried over anhydrous magnesium sulfate and filtrated. The filtrate was concentrated under reduced pressure, and the residue was purified by silica gel column chromatography (0%→100% ethyl acetate-hexane) to give the title compound (103 mg, 29%) as a white solid.

Workup

  1. extractionextracted with ethyl acetate
  2. washThe organic layer was washed with aqueous sodium hydrogen carbonate solution and saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. filtrationfiltrated
  5. concentrationThe filtrate was concentrated under reduced pressure
  6. customthe residue was purified by silica gel column chromatography (0%→100% ethyl acetate-hexane)

Sources & evidence

ORD record
ord-fbe70287d7ea410ab8fa53e809c12a44
Source dataset
uspto-grants-2012_11
Patent number
US08304557B2

Reaction notes

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