Ethyl Bromide → N-(3,4-Dichlorophenyl)-4-{[(3R)-1-ethylpiperidin-3-yl]methyl}piperazine-1-carboxamide

HRID 603199Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 603199
[Cl:1][C:2]1[CH:3]=[C:4]([NH:9][C:10]([N:12]2[CH2:17][CH2:16][N:15]([CH2:18][C@@H:19]3[CH2:24][CH2:23][CH2:22][NH:21][CH2:20]3)[CH2:14][CH2:13]2)=[O:11])[CH:5]=[CH:6][C:7]=1[Cl:8].Br[CH2:26][CH3:27].C(=O)([O-])[O-].[K+].[K+]>CC(C)=O>[Cl:1][C:2]1[CH:3]=[C:4]([NH:9][C:10]([N:12]2[CH2:17][CH2:16][N:15]([CH2:18][C@@H:19]3[CH2:24][CH2:23][CH2:22][N:21]([CH2:26][CH3:27])[CH2:20]3)[CH2:14][CH2:13]2)=[O:11])[CH:5]=[CH:6][C:7]=1[Cl:8]

Komponenten

5

Edukt 3

HCID 6332Ethyl BromideHCID 11430Potassium CarbonateHCID 57656731N-(3,4-Dichlorophenyl)-4-[(3R)-piperidin-3-ylmethyl]piperazine-1-carboxamide

Produkt 1

HCID 11553070N-(3,4-Dichlorophenyl)-4-{[(3R)-1-ethylpiperidin-3-yl]methyl}piperazine-1-carboxamide

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 180AcetoneLösungsmittel

Versuchsvorschrift

N-(3,4-Dichlorophenyl)-4-[(3R)-piperidin-3-ylmethyl]piperazine-1-carboxamide (0.30 g), bromoethane (0.12 ml) and potassium carbonate (0.56 g) was refluxed in acetone (70 ml) for 18 hours. The reaction mixture was allowed to cool to room temperature then filtered. The filtrate was concentrated in vacuo and the resulting oil separated between ethyl acetate (100 ml) and water (100 ml). The ethyl acetate layer was separated, dried over magnesium sulphate, filtered then concentrated in vacuo onto silica gel (5 g). The resulting powder was subjected to chromatography on silica gel (50 g) using a gradient of 100% dichloromethane through to 20% methanolic ammonia in dichloromethane to give the title compound (24.9 mg).

Aufarbeitung

  1. filtrationthen filtered
  2. concentrationThe filtrate was concentrated in vacuo
  3. customthe resulting oil separated between ethyl acetate (100 ml) and water (100 ml)
  4. customThe ethyl acetate layer was separated
  5. dry with materialdried over magnesium sulphate
  6. filtrationfiltered
  7. concentrationthen concentrated in vacuo onto silica gel (5 g)

Quellen und Nachweise

ORD-Eintrag
ord-d12df8844e724305b36e4e6192eb5ea4
Quelldatensatz
uspto-grants-2011_03
Patentnummer
US07906645B2

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