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Sodium Hydroxide → 6-bromo-N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-1H-pyrazolo[3,4-b]pyridine-4-carboxamide

HRID 1501612
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1501612
[OH-].[Na+].[Br:3][C:4]1[CH:5]=[C:6]([C:13]([O:15]CC)=O)[C:7]2[CH:12]=[N:11][NH:10][C:8]=2[N:9]=1.[NH2:18][CH2:19][C:20]1[C:21](=[O:28])[NH:22][C:23]([CH3:27])=[CH:24][C:25]=1[CH3:26].C1CN([P+](ON2N=NC3C=CC=CC2=3)(N2CCCC2)N2CCCC2)CC1.F[P-](F)(F)(F)(F)F>CCO.CS(C)=O>[Br:3][C:4]1[CH:5]=[C:6]([C:13]([NH:18][CH2:19][C:20]2[C:21](=[O:28])[NH:22][C:23]([CH3:27])=[CH:24][C:25]=2[CH3:26])=[O:15])[C:7]2[CH:12]=[N:11][NH:10][C:8]=2[N:9]=1
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Komponenten

7

Edukt 4

HCID 14798Sodium HydroxideHCID 2724699PyBOPHCID 70638443-(Aminomethyl)-4,6-dimethyl-1,2-dihydropyridin-2-oneHCID 59766670ethyl 6-bromo-1H-pyrazolo[3,4-b]pyridine-4-carboxylate

Produkt 1

HCID 867034116-bromo-N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-1H-pyrazolo[3,4-b]pyridine-4-carboxamideAusbeute 58,47 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 679Dimethyl SulfoxideLösungsmittelHCID 702EthanolLösungsmittel2×

Reaktionsbedingungen

Temperatur
60 °C

Versuchsvorschrift

Aqueous NaOH (1.11 g, 27.88 mmol) was added to a solution of ethyl 6-bromo-1H-pyrazolo[3,4-b]pyridine-4-carboxylate (5 g, 18.6 mmol) in EtOH (50 mL) and stirred at 60° C. for 1 h. After completion of the reaction, ethanol was removed under reduced pressure and it was acidified using 10% citric acid solution. Solid obtained was filtered and dried under reduced pressure. The crude acid (4.4 g, 18.3 mmol) was then dissolved in DMSO (20 mL) and 3-(aminomethyl)-4,6-dimethylpyridin-2(1H)-one (5.55 g, 36.51 mmol) was added to it. The reaction mixture was stirred at room temperature for 15 min before PYBOP (14.24 g, 27.38 mmol) was added to it and stirring was continued overnight. After completion of the reaction, reaction mass was poured into ice to obtain solid, which was filtered and washed with acetonitrile followed by ether to provide the desired intermediate (4 g, 58.47%).

Aufarbeitung

  1. customwas removed under reduced pressure and it
  2. customSolid obtained
  3. filtrationwas filtered
  4. customdried under reduced pressure
  5. additionwas added to it
  6. stirringstirring
  7. waitwas continued overnight
  8. customAfter completion of the reaction, reaction mass
  9. additionwas poured into ice
  10. customto obtain solid, which
  11. filtrationwas filtered
  12. washwashed with acetonitrile

Quellen und Nachweise

ORD-Eintrag
ord-e658174523aa4fd6a3d19450fc0c207a
Quelldatensatz
uspto-grants-2015_12
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09206157B2

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