Pyridine → HCID 10651405, Verbindung

HRID 1827447

Reaktionsgleichung

Reaktionsgleichung von HRID 1827447
[CH2:1]([O:8][C@H:9]1[C:13]([CH2:16][OH:17])([CH2:14][OH:15])[O:12][C@@H:11]([N:18]2[CH:26]=[C:24]([CH3:25])[C:22](=[O:23])[NH:21][C:19]2=[O:20])[C@@H:10]1[OH:27])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.N1C=CC=CC=1.[CH3:34][S:35](Cl)(=[O:37])=[O:36]>O1CCCC1>[CH2:1]([O:8][C@H:9]1[C:13]([CH2:14][O:15][S:35]([CH3:34])(=[O:37])=[O:36])([CH2:16][O:17][S:35]([CH3:34])(=[O:37])=[O:36])[O:12][C@@H:11]([N:18]2[CH:26]=[C:24]([CH3:25])[C:22](=[O:23])[NH:21][C:19]2=[O:20])[C@@H:10]1[O:27][S:35]([CH3:34])(=[O:37])=[O:36])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Komponenten

5

Edukt 3

HCID 1049PyridineHCID 31297Methanesulfonyl chlorideHCID 106910381-(3-O-Benzy-4-hydroxymethyl-beta-D-xylofuranosyl)thymine

Produkt 1

HCID 10651405HCID 10651405, VerbindungAusbeute 51 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

To a solution of nucleoside 5 (1100 mg, 2.91 mmol) in anhydrous tetrahydrofuran (20 cm3) was added anhydrous pyridine (5 cm3) followed by methanesulfonyl chloride (1.2 ml, 15.5 mmol). The mixture was stirred under a nitrogen atmosphere for 18 h at room temperature. The reaction mixture was evaporated to dryness under reduced pressure and dissolved in ethyl acetate. The organic phase was washed with saturated aqueous solution of sodium hydrogen carbonate (3×10 cm3) and dried (Na2SO4). The organic phase was evaporated to dryness under reduced pressure. The residue was purified by silica gel column chromatography using dichloromethane/methanol (2% methanol, v/v) as elutxnt to afford nucleoside 11 (908 mg, 51%). δC (CDCl3) 163.3, 150.6, 135.6, 134.6, 128.7, 128.3, 112.2, 87.9, 85.0, 83.1, 80.9, 77.2, 76.9, 76.6, 73.3, 66.6, 66.2, 38.6, 37.6, 37.6, 12.2.

Aufarbeitung

  1. customThe reaction mixture was evaporated to dryness under reduced pressure
  2. dissolutiondissolved in ethyl acetate
  3. washThe organic phase was washed with saturated aqueous solution of sodium hydrogen carbonate (3×10 cm3)
  4. dry with materialdried (Na2SO4)
  5. customThe organic phase was evaporated to dryness under reduced pressure
  6. customThe residue was purified by silica gel column chromatography

Quellen und Nachweise

ORD-Eintrag
ord-ebbfd4819d234ad38c59ef9f5a9c20b8
Quelldatensatz
uspto-grants-2006_05
Patentnummer
US07053207B2

Verknüpfte Notizen

Wird geladen…