Water → 5-fluoro-3-oxo-N-(5-phenyl-2-pyrazinyl)spiro[isobenzo-furan-1(3H),4'-piperidine]-1'-carboxamide

HRID 480052Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 480052
Cl.[F:2][C:3]1[CH:4]=[C:5]2[C:14](=[CH:15][CH:16]=1)[C:8]1([CH2:13][CH2:12][NH:11][CH2:10][CH2:9]1)[O:7][C:6]2=[O:17].[C:18]1([C:24]2[N:25]=[CH:26][C:27]([NH:30][C:31](=O)[O:32]C3C=CC=CC=3)=[N:28][CH:29]=2)[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1.C(N(CC)CC)C.O>C(Cl)(Cl)Cl>[F:2][C:3]1[CH:4]=[C:5]2[C:14](=[CH:15][CH:16]=1)[C:8]1([CH2:13][CH2:12][N:11]([C:31]([NH:30][C:27]3[CH:26]=[N:25][C:24]([C:18]4[CH:19]=[CH:20][CH:21]=[CH:22][CH:23]=4)=[CH:29][N:28]=3)=[O:32])[CH2:10][CH2:9]1)[O:7][C:6]2=[O:17]

Komponenten

6

Edukt 4

HCID 962WaterHCID 8471TriethylamineHCID 9879110Phenyl 5-phenylpyrazin-2-ylcarbamateHCID 226607305-Fluoro-3H-spiro[isobenzofuran-1,4'-piperidin]-3-one hydrochloride

Produkt 1

HCID 99538015-fluoro-3-oxo-N-(5-phenyl-2-pyrazinyl)spiro[isobenzo-furan-1(3H),4'-piperidine]-1'-carboxamideAusbeute 96,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6212ChloroformLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

A mixture of 5-fluorospiro[isobenzofuran-1(3H),4′-piperidine]-3-one hydrochloride (64 mg), phenyl N-(5-phenyl-2-pyrazinyl)carbamate (73 mg) and triethylamine (174 μL) in chloroform (5 mL) was stirred at 80° C. for 2 hours. The reaction mixture was poured into water and extracted with chloroform (20 mL). The organic layer was washed with saturated saline solution (20 mL), then dried over anhydrous Na2SO4 and concentrated. The residue was purified by column chromatography on silica gel (hexane/ethyl acetate=4/1 to 1/2) and recrystallized from ethyl ether-hexane to give the subject compound (100 mg) as colorless crystals (melting point 236-238° C.).

Aufarbeitung

  1. extractionextracted with chloroform (20 mL)
  2. washThe organic layer was washed with saturated saline solution (20 mL)
  3. dry with materialdried over anhydrous Na2SO4
  4. concentrationconcentrated
  5. customThe residue was purified by column chromatography on silica gel (hexane/ethyl acetate=4/1 to 1/2)
  6. customrecrystallized from ethyl ether-hexane

Quellen und Nachweise

ORD-Eintrag
ord-bf079ce9511a43d891802bc19aafd7bc
Quelldatensatz
uspto-grants-2003_11
Patentnummer
US06649624B2

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