Ammonia → 2-[1-(4-Bromo-phenyl)-1-carbamoyl-ethylcarbamoyl]-pyrrolidine-1-carboxylic acid tert-butyl ester

HRID 79640Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 79640
[C:1]([O:5][C:6]([N:8]1[CH2:12][CH2:11][CH2:10][CH:9]1[C:13](=[O:29])[NH:14][C:15]([C:22]1[CH:27]=[CH:26][C:25]([Br:28])=[CH:24][CH:23]=1)([C:17](OCC)=[O:18])[CH3:16])=[O:7])([CH3:4])([CH3:3])[CH3:2].[NH3:30]>C(O)C>[C:1]([O:5][C:6]([N:8]1[CH2:12][CH2:11][CH2:10][CH:9]1[C:13](=[O:29])[NH:14][C:15]([C:22]1[CH:27]=[CH:26][C:25]([Br:28])=[CH:24][CH:23]=1)([C:17](=[O:18])[NH2:30])[CH3:16])=[O:7])([CH3:3])([CH3:2])[CH3:4]

Komponenten

4

Edukt 2

HCID 222AmmoniaHCID 666204492-[1-(4-Bromo-phenyl)-1-ethoxycarbonyl-ethylcarbamoyl]-pyrrolidine-1-carboxylic acid tert-butyl ester

Produkt 1

HCID 666205922-[1-(4-Bromo-phenyl)-1-carbamoyl-ethylcarbamoyl]-pyrrolidine-1-carboxylic acid tert-butyl esterAusbeute 64 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 702EthanolLösungsmittel

Versuchsvorschrift

To a stirred solution of 2-[1-(4-bromo-phenyl)-1-ethoxycarbonyl-ethylcarbamoyl]-pyrrolidine-1-carboxylic acid tert-butyl ester (280 mg, 0.6 mmol) in ethanol (8 mL) was bubbled through NH3 gas for 5 minutes at −78° C. The solution was stirred at ambient for 3 days in a sealed tube. Most of the volatile component was removed in vacuo, and the resulting residue was dissolved in ethyl acetate (150 mL), washed with water and brine, dried over Na2SO4, filtered and concentrated in vacuo. The obtained residue was purified by flash chromatography to provide the desired product as a colorless oil (169 mg, 64%). m/z 439.8, 441.8 (M+H)+.

Aufarbeitung

  1. customMost of the volatile component was removed in vacuo
  2. dissolutionthe resulting residue was dissolved in ethyl acetate (150 mL)
  3. washwashed with water and brine
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe obtained residue was purified by flash chromatography

Quellen und Nachweise

ORD-Eintrag
ord-a1b3007fe4ce40239175224a98bbe86c
Quelldatensatz
uspto-grants-2014_09
Patentnummer
US08841278B2

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