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Ammonium Chloride → tert-butyl (3S,5R)-3-[{[1-(4-methoxybutyl)-1H-benzimidazol-2-yl]carbonyl}(2-methylpropyl)amino]-5-propanoyl-piperidine-1-carboxylate

HRID 2168971
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2168971
[CH3:1][O:2][CH2:3][CH2:4][CH2:5][CH2:6][N:7]1[C:11]2[CH:12]=[CH:13][CH:14]=[CH:15][C:10]=2[N:9]=[C:8]1[C:16]([N:18]([CH2:38][CH:39]([CH3:41])[CH3:40])[C@H:19]1[CH2:24][C@@H:23]([C:25](=[O:30])N(OC)C)[CH2:22][N:21]([C:31]([O:33][C:34]([CH3:37])([CH3:36])[CH3:35])=[O:32])[CH2:20]1)=[O:17].[CH2:42]([Mg]Br)[CH3:43].C1COCC1.[Cl-].[NH4+]>C1COCC1>[CH3:1][O:2][CH2:3][CH2:4][CH2:5][CH2:6][N:7]1[C:11]2[CH:12]=[CH:13][CH:14]=[CH:15][C:10]=2[N:9]=[C:8]1[C:16]([N:18]([CH2:38][CH:39]([CH3:40])[CH3:41])[C@H:19]1[CH2:24][C@@H:23]([C:25](=[O:30])[CH2:42][CH3:43])[CH2:22][N:21]([C:31]([O:33][C:34]([CH3:37])([CH3:35])[CH3:36])=[O:32])[CH2:20]1)=[O:17]
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Komponenten

5

Edukt 3

HCID 25517Ammonium ChlorideHCID 58355290tert-butyl (3S,5R)-3-[{[1-(4-methoxybutyl)-1H-benzimidazol-2-yl]carbonyl}(2-methylpropyl)amino]-5-[methoxy(methyl)carbamoyl]piperidine-1-carboxylateHCID 178420660HCID 178420660, Verbindung

Produkt 1

HCID 67025990tert-butyl (3S,5R)-3-[{[1-(4-methoxybutyl)-1H-benzimidazol-2-yl]carbonyl}(2-methylpropyl)amino]-5-propanoyl-piperidine-1-carboxylate

Reagenzien, Katalysatoren, Lösungsmittel

1
HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

To a solution of tert-butyl (3S,5R)-3-[{[1-(4-methoxybutyl)-1H-benzimidazol-2-yl]carbonyl}(2-methylpropyl)amino]-5-[methoxy(methyl)carbamoyl]piperidine-1-carboxylate (22.7 g) in THF (20 ml) was added 1M-ethylmagnesium bromide-THF solution (119 ml) at room temperature, and the mixture was stirred at room temperature for 5 hr. The reaction mixture was poured into saturated aqueous ammonium chloride solution, and the mixture was extracted with ethyl acetate. The extract was washed with water and saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure. The residue was subjected to silica gel column chromatography, and a fraction eluted with ethyl acetate-hexane (1:9-3:2) was concentrated under reduced pressure to give the object product (14.96 g).

Aufarbeitung

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe extract was washed with water and saturated brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. customThe solvent was evaporated under reduced pressure
  5. washa fraction eluted with ethyl acetate-hexane (1:9-3:2)
  6. concentrationwas concentrated under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-e070c6b2376748ae812d5c2154262f2c
Quelldatensatz
uspto-grants-2015_06
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09045436B2

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