Water → N-(5-{[2-(acetylamino)imidazo[1,2-b]pyridazin-6-yl]oxy}-2-fluorophenyl)-1,3-dimethyl-1H-pyrazole-5-carboxamide

HRID 1668045

Reaktionsgleichung

Reaktionsgleichung von HRID 1668045
[NH2:1][C:2]1[CH:3]=[C:4]([CH:19]=[CH:20][C:21]=1[F:22])[O:5][C:6]1[CH:7]=[CH:8][C:9]2[N:10]([CH:12]=[C:13]([NH:15][C:16](=[O:18])[CH3:17])[N:14]=2)[N:11]=1.[CH3:23][N:24]1[C:28]([C:29](Cl)=[O:30])=[CH:27][C:26]([CH3:32])=[N:25]1.O>CN(C)C(=O)C>[C:16]([NH:15][C:13]1[N:14]=[C:9]2[CH:8]=[CH:7][C:6]([O:5][C:4]3[CH:19]=[CH:20][C:21]([F:22])=[C:2]([NH:1][C:29]([C:28]4[N:24]([CH3:23])[N:25]=[C:26]([CH3:32])[CH:27]=4)=[O:30])[CH:3]=3)=[N:11][N:10]2[CH:12]=1)(=[O:18])[CH3:17]

Komponenten

5

Edukt 3

HCID 962WaterHCID 27362992,5-Dimethyl-2H-pyrazole-3-carbonyl chlorideHCID 57505595N-[6-(3-amino-4-fluorophenoxy)imidazo[1,2-b]pyridazin-2-yl]acetamide

Produkt 1

HCID 57505596N-(5-{[2-(acetylamino)imidazo[1,2-b]pyridazin-6-yl]oxy}-2-fluorophenyl)-1,3-dimethyl-1H-pyrazole-5-carboxamideAusbeute 78 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 31374DimethylacetamideLösungsmittel

Versuchsvorschrift

To a solution of N-[6-(3-amino-4-fluorophenoxy)imidazo[1,2-b]pyridazin-2-yl]acetamide (5.6 g, 18.6 mmol) in N,N-dimethylacetamide (44.8 mL) was added 1,3-dimethyl-1H-pyrazole-5-carbonyl chloride (3.25 g, 20.4 mmol). After stirring at room temperature for 2 hr, water was added to the reaction mixture, and the mixture was extracted with ethyl acetate/tetrahydrofuran, washed with saturated brine, dried over anhydrous magnesium sulfate, and filtrated. The solvent was evaporated under reduced pressure, and the residue was washed with ethyl acetate/ethanol to give the title compound (6.1 g, 78%) as a white powder.

Aufarbeitung

  1. extractionthe mixture was extracted with ethyl acetate/tetrahydrofuran
  2. washwashed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. filtrationfiltrated
  5. customThe solvent was evaporated under reduced pressure
  6. washthe residue was washed with ethyl acetate/ethanol

Quellen und Nachweise

ORD-Eintrag
ord-85df33d4c7c54eb1bbd7fb4ed60a1f2c
Quelldatensatz
uspto-grants-2011_10
Patentnummer
US08044049B2

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