(Bis(2-methoxyethyl)amino)sulfur trifluoride → (1R,5R)-7-Fluoro-4-oxo-3-[(1R)-1-phenylethyl]-3-azabicyclo[3.3.0]octan-1-ylcarboxylic acid tert-butyl ester

HRID 1917344Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1917344
[C:1]([O:5][C:6]([C@@:8]12[CH2:15][CH:14](O)[CH2:13][C@@H:12]1[C:11](=[O:17])[N:10]([C@@H:18]([C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1)[CH3:19])[CH2:9]2)=[O:7])([CH3:4])([CH3:3])[CH3:2].COCCN(S(F)(F)[F:36])CCOC>C(Cl)Cl>[C:1]([O:5][C:6]([C@:8]12[CH2:15][CH:14]([F:36])[CH2:13][C@H:12]1[C:11](=[O:17])[N:10]([C@@H:18]([C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1)[CH3:19])[CH2:9]2)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Komponenten

4

Edukt 2

HCID 2734690(Bis(2-methoxyethyl)amino)sulfur trifluorideHCID 67491063(1S,5S)-7-Hydroxy-4-oxo-3-[(1R)-1-phenylethyl]-3-azabicyclo[3.3.0]octan-1-ylcarboxylic acid tert-butyl ester

Produkt 1

HCID 67491056(1R,5R)-7-Fluoro-4-oxo-3-[(1R)-1-phenylethyl]-3-azabicyclo[3.3.0]octan-1-ylcarboxylic acid tert-butyl esterAusbeute 71 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

(1S,5S)-7-Hydroxy-4-oxo-3-[(1R)-1-phenylethyl]-3-azabicyclo[3.3.0]octan-1-ylcarboxylic acid tert-butyl ester (1.0 g, 2.89 mmol) was dissolved in methylene chloride (15 mL). Bis(2-methoxyethyl)aminosulfur trifluoride (BAST) (0.59 mL) was added under ice-cooling, and the mixture was stirred at the same temperature for one hour. The reaction solution was washed with saturated sodium bicarbonate water, dried over magnesium sulfate, and filtered. Then, the solvent was evaporated under reduced pressure. The residue was purified by silica gel chromatography (hexane:ethyl acetate=10:1→4:1→1:1) to give 711 mg (71%) of the title compound as a colorless oil.

Aufarbeitung

  1. temperaturecooling
  2. washThe reaction solution was washed with saturated sodium bicarbonate water
  3. dry with materialdried over magnesium sulfate
  4. filtrationfiltered
  5. customThen, the solvent was evaporated under reduced pressure
  6. customThe residue was purified by silica gel chromatography (hexane:ethyl acetate=10:1→4:1→1:1)

Quellen und Nachweise

ORD-Eintrag
ord-f04276c0ba33455088a1a1ad260ff00d
Quelldatensatz
uspto-grants-2013_12
Patentnummer
US08618094B2

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