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Water → 3-Benzyloxy-5-(4-fluoro-benzylcarbamoyl)-4-oxo-1-(2-oxo-ethyl)-1,4-dihydro-pyridine-2-carboxylic acid methyl ester

HRID 920685
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 920685
[CH3:1][O:2][C:3]([C:5]1[N:6]([CH2:31][CH:32]=C)[CH:7]=[C:8]([C:20](=[O:30])[NH:21][CH2:22][C:23]2[CH:28]=[CH:27][C:26]([F:29])=[CH:25][CH:24]=2)[C:9](=[O:19])[C:10]=1[O:11][CH2:12][C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1)=[O:4].I([O-])(=O)(=O)=[O:35].[Na+].C(OCC)(=O)C.O>O1CCOCC1>[CH3:1][O:2][C:3]([C:5]1[N:6]([CH2:31][CH:32]=[O:35])[CH:7]=[C:8]([C:20](=[O:30])[NH:21][CH2:22][C:23]2[CH:28]=[CH:27][C:26]([F:29])=[CH:25][CH:24]=2)[C:9](=[O:19])[C:10]=1[O:11][CH2:12][C:13]1[CH:14]=[CH:15][CH:16]=[CH:17][CH:18]=1)=[O:4]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 4

HCID 962WaterHCID 8857Ethyl AcetateHCID 23667635Sodium periodateHCID 596005921-Allyl-3-benzyloxy-5-(4-fluoro-benzylcarbamoyl)-4-oxo-1,4-dihydro-pyridine-2-carboxylic acid methyl ester

Produkt 1

HCID 596005723-Benzyloxy-5-(4-fluoro-benzylcarbamoyl)-4-oxo-1-(2-oxo-ethyl)-1,4-dihydro-pyridine-2-carboxylic acid methyl ester
Ausbeute 77 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 312751,4-DioxaneLösungsmittel

Versuchsvorschrift

To a solution of the compound 15 (7.6 g, 16.9 mmol) in 1,4-dioxane (228 ml) was added an aqueous solution (8 ml) of potassium osmate dihydrate (372 mg, 1.01 mmol), and sodium metaperiodate (14.5 g, 67.6 mmol) was further added, followed by stirring at room temperature for 2 hours. The reaction solution was added to a vessel to which ethyl acetate (30 ml) and water (30 ml) had been added, while stirring. The organic layer was washed with water, a 5% aqueous sodium hydrogen sulfite solution and an aqueous saturated sodium chloride solution, and dried with anhydrous sodium sulfate. The solvent was distilled off under reduced pressure, and the residue was washed with diethyl ether to obtain 3-benzyloxy-5-(4-fluoro-benzylcarbamoyl)-4-oxo-(2-oxo-ethyl)-1,4-dihydro-pyridine-2-carboxylic acid methyl ester 16 (5.89 g, 71%) as a colorless crystal.

Aufarbeitung

  1. additionwas further added
  2. additionhad been added
  3. stirringwhile stirring
  4. washThe organic layer was washed with water
  5. dry with materiala 5% aqueous sodium hydrogen sulfite solution and an aqueous saturated sodium chloride solution, and dried with anhydrous sodium sulfate
  6. distillationThe solvent was distilled off under reduced pressure
  7. washthe residue was washed with diethyl ether

Quellen und Nachweise

ORD-Eintrag
ord-43a088b6afe34cac9ef85a08484c2c3d
Quelldatensatz
uspto-grants-2016_03
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09273065B2

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