Potassium Carbonate → tert-butyl (3R)-4-[2-(3-cyano-4-fluorophenyl)-2-oxoethyl]-3-(hydroxymethyl)piperazine-1-carboxylate

HRID 1501981

Reaktionsgleichung

Reaktionsgleichung von HRID 1501981
Br[CH2:2][C:3]([C:5]1[CH:6]=[CH:7][C:8]([F:13])=[C:9]([CH:12]=1)[C:10]#[N:11])=[O:4].[OH:14][CH2:15][C@@H:16]1[NH:21][CH2:20][CH2:19][N:18]([C:22]([O:24][C:25]([CH3:28])([CH3:27])[CH3:26])=[O:23])[CH2:17]1.C([O-])([O-])=O.[K+].[K+]>CN(C=O)C>[C:10]([C:9]1[CH:12]=[C:5]([C:3](=[O:4])[CH2:2][N:21]2[CH2:20][CH2:19][N:18]([C:22]([O:24][C:25]([CH3:26])([CH3:27])[CH3:28])=[O:23])[CH2:17][C@@H:16]2[CH2:15][OH:14])[CH:6]=[CH:7][C:8]=1[F:13])#[N:11]

Komponenten

5

Edukt 3

HCID 11430Potassium CarbonateHCID 24820286tert-Butyl (3R)-3-(hydroxymethyl)piperazine-1-carboxylateHCID 867270445-(2-Bromoacetyl)-2-fluorobenzonitrile

Produkt 1

HCID 86727046tert-butyl (3R)-4-[2-(3-cyano-4-fluorophenyl)-2-oxoethyl]-3-(hydroxymethyl)piperazine-1-carboxylate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

To a solution of 5-(bromoacetyl)-2-fluorobenzonitrile (13.1 g, 0.054 mol) in DMF (160 mL) was added tert-butyl (3R)-3-(hydroxymethyl)piperazine-1-carboxylate (13.1 g, 0.065 mol) and K2CO3 (11.77 g, 0.075 mol), and the mixture was stirred at r.t for 3 h. The mixture was washed with water, and extracted with EtOAc. The organic layer was washed with brine dried over Na2SO4 and concentrated in vacuum to give the desired product, which can be used for next step without further purification.

Aufarbeitung

  1. washThe mixture was washed with water
  2. extractionextracted with EtOAc
  3. washThe organic layer was washed with brine
  4. dry with materialdried over Na2SO4
  5. concentrationconcentrated in vacuum

Quellen und Nachweise

ORD-Eintrag
ord-69a9d84be61744a492fc7ec38df3df64
Quelldatensatz
uspto-grants-2015_12
Patentnummer
US09206199B2

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