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Cesium carbonate → 1-(2-(6-(6-amino-pyridin-3-yloxy)-2-pyridin-2-yl-3H-benzimidazol-5-yl)-pyrrolidin-1-yl)-ethanone

HRID 13358
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 13358
Br[C:2]1[CH:3]=[CH:4][C:5]([N+:8]([O-])=O)=[N:6][CH:7]=1.C(=O)([O-])[O-].[Cs+].[Cs+].[OH:17][C:18]1[C:19]([CH:41]2[CH2:45][CH2:44][CH2:43][N:42]2[C:46](=[O:48])[CH3:47])=[CH:20][C:21]2[N:25](COCC[Si](C)(C)C)[C:24]([C:34]3[CH:39]=[CH:38][CH:37]=[CH:36][N:35]=3)=[N:23][C:22]=2[CH:40]=1.[Cl-].[NH4+]>[Cu]=O.N1C=CC=CC=1>[NH2:8][C:5]1[N:6]=[CH:7][C:2]([O:17][C:18]2[C:19]([CH:41]3[CH2:45][CH2:44][CH2:43][N:42]3[C:46](=[O:48])[CH3:47])=[CH:20][C:21]3[NH:25][C:24]([C:34]4[CH:39]=[CH:38][CH:37]=[CH:36][N:35]=4)=[N:23][C:22]=3[CH:40]=2)=[CH:3][CH:4]=1
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Komponenten

7

Edukt 4

HCID 10796Cesium carbonateHCID 25517Ammonium ChlorideHCID 8176205-Bromo-2-nitropyridineHCID 231452771-(2-(6-hydroxy-2-pyridin-2-yl-3-(2-trimethylsilanyl-ethoxymethyl)-3H-benzimidazol-5-yl)-pyrrolidin-1-yl)-ethanone

Produkt 1

HCID 231453671-(2-(6-(6-amino-pyridin-3-yloxy)-2-pyridin-2-yl-3H-benzimidazol-5-yl)-pyrrolidin-1-yl)-ethanone

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 14829Copper oxideKatalysatorHCID 1049PyridineLösungsmittel

Reaktionsbedingungen

Temperatur
120 °C

Versuchsvorschrift

53.5 mg of 5-bromo-2-nitro-pyridine, 84.2 mg of cesium carbonate and 25 mg of copper(II) oxide were added to a pyridine (1 ml) solution of 55.0 mg of 1-(2-(6-hydroxy-2-pyridin-2-yl-3-(2-trimethylsilanyl-ethoxymethyl)-3H-benzimidazol-5-yl)-pyrrolidin-1-yl)-ethanone obtained in Example 121 (step 10), and the reaction liquid was stirred overnight in a sealed tube at 120° C. After cooled, aqueous saturated ammonium chloride and saturated saline were added in order to the reaction liquid, extracted with ethyl acetate and dried with anhydrous magnesium sulfate. The solvent was evaporated away under reduced pressure, and 0.016 ml of hydrazine monohydrate and 20 mg of developed Raney nickel catalyst were added to an ethanol (2 ml) solution of the resulting residue, and the reaction liquid was stirred at room temperature for 30 minutes. The catalyst was removed through filtration through Celite, and the solvent was evaporated away under reduced pressure. The resulting residue was purified through partitioning thin-layer chromatography (Kieselgel™ 60F254, Art 5744 (by Merck), chloroform/methanol=9/1) to obtain the entitled compound as a yellow oily substance.

Aufarbeitung

  1. customthe reaction liquid
  2. temperatureAfter cooled
  3. extractionextracted with ethyl acetate
  4. dry with materialdried with anhydrous magnesium sulfate
  5. customThe solvent was evaporated away under reduced pressure, and 0.016 ml of hydrazine monohydrate and 20 mg of developed Raney nickel catalyst
  6. additionwere added to an ethanol (2 ml) solution of the resulting residue
  7. customthe reaction liquid
  8. stirringwas stirred at room temperature for 30 minutes
  9. customThe catalyst was removed through filtration through Celite
  10. customthe solvent was evaporated away under reduced pressure
  11. customThe resulting residue was purified
  12. customthrough partitioning thin-layer chromatography (Kieselgel™ 60F254, Art 5744 (by Merck), chloroform/methanol=9/1)
  13. customto obtain the entitled compound as a yellow oily substance

Quellen und Nachweise

ORD-Eintrag
ord-50dad847ab5e448799a221a9eb97a01d
Quelldatensatz
uspto-grants-2010_06
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07728025B2

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