4-Chloropyridine-2-carboxamide → 4-(4-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxamido)-2-fluorophenoxy)picolinamide

HRID 520712

Reaktionsgleichung

Reaktionsgleichung von HRID 520712
[F:1][C:2]1[CH:3]=[C:4]([NH:9][C:10]([C:12]2[C:13](=[O:25])[N:14]([C:19]3[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=3)[N:15]([CH3:18])[C:16]=2[CH3:17])=[O:11])[CH:5]=[CH:6][C:7]=1[OH:8].CC(C)([O-])C.[K+].Cl[C:33]1[CH:38]=[CH:37][N:36]=[C:35]([C:39]([NH2:41])=[O:40])[CH:34]=1>CN(C=O)C>[CH3:18][N:15]1[C:16]([CH3:17])=[C:12]([C:10]([NH:9][C:4]2[CH:5]=[CH:6][C:7]([O:8][C:33]3[CH:38]=[CH:37][N:36]=[C:35]([C:39]([NH2:41])=[O:40])[CH:34]=3)=[C:2]([F:1])[CH:3]=2)=[O:11])[C:13](=[O:25])[N:14]1[C:19]1[CH:20]=[CH:21][CH:22]=[CH:23][CH:24]=1

Komponenten

5

Edukt 3

HCID 3035434-Chloropyridine-2-carboxamideHCID 23665647Potassium tert-butoxideHCID 90032660N-(3-fluoro-4-hydroxyphenyl)-1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxamide

Produkt 1

HCID 730532674-(4-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxamido)-2-fluorophenoxy)picolinamideAusbeute 43 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

To a solution of N-(3-fluoro-4-hydroxyphenyl)-1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxamide (7.18 g, 21.1 mmol) in DMF (200 mL) was added potassium tert-butoxide (7.08 g, 63.2 mmol). The solution was stirred at rt for 20 minutes, followed by the addition of 4-chloropicolinamide (4.27 g, 25.2 mmol). The reaction was heated at 120° C. for 3 hours, then concentrated to 2 mL in vacuo, and diluted with water (60 mL). The precipitate was obtained by filtration, and then washed with water (10 mL). The crude product was purified by a silica gel column chromatography (DCM/EtOAc/MeOH (v/v/v)=1/1/0.05) to give the title compound as a yellow solid (4.15 g, 43% yield).

Aufarbeitung

  1. temperatureThe reaction was heated at 120° C. for 3 hours
  2. concentrationconcentrated to 2 mL in vacuo
  3. additiondiluted with water (60 mL)
  4. customThe precipitate was obtained by filtration
  5. washwashed with water (10 mL)
  6. customThe crude product was purified by a silica gel column chromatography (DCM/EtOAc/MeOH (v/v/v)=1/1/0.05)

Quellen und Nachweise

ORD-Eintrag
ord-684510fb3ac7410985397059c7f16ade
Quelldatensatz
uspto-grants-2016_05
Patentnummer
US09326975B2

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