Methyl iodide → HCID 14796652, Verbindung

HRID 1030132

Reaktionsgleichung

Reaktionsgleichung von HRID 1030132
CI.[C:3]([C@@H:6]1[CH2:10][C@H:9]([S:11][CH2:12][C:13]2[CH:18]=[CH:17][C:16]([O:19][CH3:20])=[CH:15][CH:14]=2)[CH2:8][NH:7]1)(=[O:5])[NH2:4].[C:21](=O)(O)[O-].[Na+]>CN(C)C=O>[C:3]([C@@H:6]1[CH2:10][C@H:9]([S:11][CH2:12][C:13]2[CH:14]=[CH:15][C:16]([O:19][CH3:20])=[CH:17][CH:18]=2)[CH2:8][N:7]1[CH3:21])(=[O:5])[NH2:4]

Komponenten

5

Edukt 3

HCID 6328Methyl iodideHCID 516892Sodium BicarbonateHCID 14880267(2S, 4S)-2-Carbamoyl-4-(4-methoxybenzylthio)-pyrrolidine

Produkt 1

HCID 14796652HCID 14796652, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

0.07 ml of methyl iodide was added, whilst ice-cooling, to a solution of 0.6 g of (2S, 4S)-2-carbamoyl-4-(4-methoxybenzylthio)pyrrolidine [prepared as described in step (5) above] dissolved in 4.5 ml of dry dimethylformamide. The mixture was then stirred at 0° to 5° C. for 5 minutes and at room temperature for 20 minutes. At the end of this time, the reaction mixture was poured into a saturated aqueous solution of sodium bicarbonate and then extracted with ethyl acetate. The extract was washed with an aqueous solution of sodium chloride and dried over anhydrous magnesium sulfate. The solvent was removed by distillation under reduced pressure, and then the residue was subjected to column chromatography using a Lobar column (Merck, LiChroprep Si 60, size B), and 252 mg of the title compound, melting at 113°-114° C., were obtained as crystals from the fractions eluted with a 9:1 by volume mixture of ethyl acetate and methanol.

Aufarbeitung

  1. extractionextracted with ethyl acetate
  2. washThe extract was washed with an aqueous solution of sodium chloride
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customThe solvent was removed by distillation under reduced pressure
  5. customwere obtained as crystals from the fractions
  6. washeluted with a 9:1 by volume mixture of ethyl acetate and methanol

Quellen und Nachweise

ORD-Eintrag
ord-846d7e43ea964438b8ae1704ec66fd2b
Quelldatensatz
uspto-grants-1992_04
Patentnummer
US05104867

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