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Water → 7-chloro-1-(2,6-difluorophenyl)-4-methoxy-1H-pyrazolo[4,3-c]pyridin-3-yl trifluoromethanesulfonate

HRID 2206149
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2206149
[F:1][C:2]([F:27])([F:26])[S:3]([O:6][C:7]1[C:11]2[C:12]([O:16][CH3:17])=[N:13][CH:14]=[CH:15][C:10]=2[N:9]([C:18]2[C:23]([F:24])=[CH:22][CH:21]=[CH:20][C:19]=2[F:25])[N:8]=1)(=[O:5])=[O:4].[Cl:28]N1C(=O)CCC1=O.O>CN(C=O)C>[F:27][C:2]([F:26])([F:1])[S:3]([O:6][C:7]1[C:11]2[C:12]([O:16][CH3:17])=[N:13][CH:14]=[C:15]([Cl:28])[C:10]=2[N:9]([C:18]2[C:23]([F:24])=[CH:22][CH:21]=[CH:20][C:19]=2[F:25])[N:8]=1)(=[O:5])=[O:4]
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Komponenten

5

Edukt 3

HCID 962WaterHCID 31398ChlorosuccinimideHCID 1179878991-(2,6-difluorophenyl)-4-methoxy-1H-pyrazolo[4,3-c]pyridin-3-yl trifluoromethanesulfonate

Produkt 1

HCID 1179882027-chloro-1-(2,6-difluorophenyl)-4-methoxy-1H-pyrazolo[4,3-c]pyridin-3-yl trifluoromethanesulfonateAusbeute 47,8 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228
Dimethylformamide
Lösungsmittel

Reaktionsbedingungen

Temperatur
50 °C

Versuchsvorschrift

To a solution (10 mL) of 1-(2,6-difluorophenyl)-4-methoxy-1H-pyrazolo[4,3-c]pyridin-3-yl trifluoromethanesulfonate (500 mg) obtained in Step C of Example 35 in DMF was added N-chlorosuccinimide (215 mg) at room temperature. The reaction mixture was heated at 50° C. for 21 hr, and the mixture was allowed to be cooled to room temperature. To the reaction mixture was added water under ice-cooling, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/methanol) to give the title compound (259 mg).

Aufarbeitung

  1. temperatureto be cooled to room temperature
  2. temperaturecooling
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe organic layer was washed with saturated brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. concentrationconcentrated under reduced pressure
  7. customThe residue was purified by silica gel column chromatography (ethyl acetate/methanol)

Quellen und Nachweise

ORD-Eintrag
ord-c5efcdc333ea44cba0a6610c9718755b
Quelldatensatz
uspto-grants-2016_06
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09371320B2

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