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4-Bromopyridinium chloride → 2-[1-[(4-ethoxy-2,6-difluorophenyl)methyl]-5,6-dihydro-4H-cyclopenta[c]pyrazol-3-yl]-5-methoxy-N-pyridin-4-ylpyrimidin-4-amine

HRID 1482930
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1482930
[CH2:1]([O:3][C:4]1[CH:27]=[C:26]([F:28])[C:7]([CH2:8][N:9]2[C:13]3[CH2:14][CH2:15][CH2:16][C:12]=3[C:11]([C:17]3[N:22]=[C:21]([NH2:23])[C:20]([O:24][CH3:25])=[CH:19][N:18]=3)=[N:10]2)=[C:6]([F:29])[CH:5]=1)[CH3:2].Cl.Br[C:32]1[CH:37]=[CH:36][N:35]=[CH:34][CH:33]=1.C1C=CC(P(C2C=CC3C(=CC=CC=3)C=2C2C3C(=CC=CC=3)C=CC=2P(C2C=CC=CC=2)C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>CN(C=O)C.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[CH2:1]([O:3][C:4]1[CH:5]=[C:6]([F:29])[C:7]([CH2:8][N:9]2[C:13]3[CH2:14][CH2:15][CH2:16][C:12]=3[C:11]([C:17]3[N:22]=[C:21]([NH:23][C:32]4[CH:37]=[CH:36][N:35]=[CH:34][CH:33]=4)[C:20]([O:24][CH3:25])=[CH:19][N:18]=3)=[N:10]2)=[C:26]([F:28])[CH:27]=1)[CH3:2]
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 3

HCID 881004-Bromopyridinium chlorideHCID 634876Binap, (A+-)-HCID 900126782-[1-(4-Ethoxy-2,6-difluorobenzyl)-1,4,5,6-tetrahydrocyclopenta-[c]pyrazol-3-yl]-5-methoxypyrimidin-4-amine

Produkt 1

HCID 722022542-[1-[(4-ethoxy-2,6-difluorophenyl)methyl]-5,6-dihydro-4H-cyclopenta[c]pyrazol-3-yl]-5-methoxy-N-pyridin-4-ylpyrimidin-4-amine

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 9811564
Bis(dibenzylideneacetone)palladium
Katalysator
HCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

1.74 g of 2-[1-(4-ethoxy-2,6-difluorobenzyl)-1,4,5,6-tetrahydrocyclopenta[c]-pyrazol-3-yl]-5-methoxypyrimidin-4-amine 1-4-1 (4.34 mmol, 1.00 eq.), 1.26 g of 4-bromopyridine hydrochloride (1:1) (6.50 mmol, 1.50 eq.), 540 mg of (R)-(+)-2,2′-Bis(diphenylphosphino)-1,1′-binaphtyl (0.867 mmol, 0.20 eq.), 1.66 g of sodium-tert-buylat (17.3 mmol, 4.00 eq.) and 198 mg of tris(dibenzylideneacetone)dipalladium(0) (0.867 mmol, 0.20 eq.) were suspended in 23 mL of dry DMF and stirred under nitrogen atmosphere at 100° C. bath temperature for 24 h. The reaction mixture was partitioned between half saturated aqueous ammonium chloride solution and DCM/isopropanol (4:1). The separated aqueous layer was extracted twice with DCM/isopropanol (4:1). The combined organic layers were washed with brine, dried over sodium sulfate and concentrated in vacuo. Toluene was added and concentrated in vacuo. The residue was purified by flash chromatography (hexane (50-100%)/ethyl acetate and ethyl acetate (0-100%)/methanole): 655 mg (1.29 mmol, 30%) of analytically pure target compound.

Aufarbeitung

  1. customThe reaction mixture was partitioned between half saturated aqueous ammonium chloride solution and DCM/isopropanol (4:1)
  2. extractionThe separated aqueous layer was extracted twice with DCM/isopropanol (4:1)
  3. washThe combined organic layers were washed with brine
  4. dry with materialdried over sodium sulfate
  5. concentrationconcentrated in vacuo
  6. additionToluene was added
  7. concentrationconcentrated in vacuo
  8. customThe residue was purified by flash chromatography (hexane (50-100%)/ethyl acetate and ethyl acetate (0-100%)/methanole)

Quellen und Nachweise

ORD-Eintrag
ord-23e445e46a0144aa8b06b48c163eb9f4
Quelldatensatz
uspto-grants-2016_08
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09416125B2

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