Tert-butyl 4-isothiocyanatopiperidine-1-carboxylate → tert-Butyl 4-(3-((3SR,5SR)-3-(2-chloro-4-fluorophenyl)-5-hydroxy-2-oxopiperidin-1-yl)thioureido)piperidine-1-carboxylate

HRID 451522Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 451522
[NH2:1][N:2]1[CH2:7][CH:6]([OH:8])[CH2:5][CH:4]([C:9]2[CH:14]=[CH:13][C:12]([F:15])=[CH:11][C:10]=2[Cl:16])[C:3]1=[O:17].[C:18]([O:22][C:23]([N:25]1[CH2:30][CH2:29][CH:28]([N:31]=[C:32]=[S:33])[CH2:27][CH2:26]1)=[O:24])([CH3:21])([CH3:20])[CH3:19]>CC(N(C)C)=O.C(OCC)(=O)C>[Cl:16][C:10]1[CH:11]=[C:12]([F:15])[CH:13]=[CH:14][C:9]=1[CH:4]1[CH2:5][CH:6]([OH:8])[CH2:7][N:2]([NH:1][C:32](=[S:33])[NH:31][CH:28]2[CH2:27][CH2:26][N:25]([C:23]([O:22][C:18]([CH3:20])([CH3:19])[CH3:21])=[O:24])[CH2:30][CH2:29]2)[C:3]1=[O:17]

Komponenten

5

Edukt 2

HCID 58591952Tert-butyl 4-isothiocyanatopiperidine-1-carboxylateHCID 67344225(3SR,5SR)-1-Amino-3-(2-chloro-4-fluorophenyl)-5-hydroxypiperidin-2-one

Produkt 1

HCID 86656717tert-Butyl 4-(3-((3SR,5SR)-3-(2-chloro-4-fluorophenyl)-5-hydroxy-2-oxopiperidin-1-yl)thioureido)piperidine-1-carboxylateAusbeute 83 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 8857Ethyl AcetateLösungsmittelHCID 31374DimethylacetamideLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

To a solution of (3SR,5SR)-1-amino-3-(2-chloro-4-fluorophenyl)-5-hydroxypiperidin-2-one (0.8 g, 2.9 mmol) in dimethylacetamide (1 mL) was added 4-isothiocyanatopiperidine-1-carboxylic acid tert-butyl ester (0.8 g, 3.2 mmol, US2006/14958A1) and the reaction stirred for 2 hours at 80° C. The reaction was diluted with ethyl acetate, washed with water, brine, dried with sodium sulfate and the solvent was evaporated in vacuo. The product was triturated from dichloromethane by addition of heptane to afford the title compound as a colourless powder (1.2 g, 83%). MS ISP (m/e): 501.2 [(M+H)+].

Aufarbeitung

  1. washwashed with water, brine
  2. dry with materialdried with sodium sulfate
  3. customthe solvent was evaporated in vacuo
  4. customThe product was triturated from dichloromethane by addition of heptane

Quellen und Nachweise

ORD-Eintrag
ord-7a638818a2e947d88a34a747fd171dd0
Quelldatensatz
uspto-grants-2013_07
Patentnummer
US08486967B2

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