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Trifluoroacetic acid → 5-fluoro-2-phenoxymethyl-6-piperazin-1-yl-1-(4-trifluoromethoxy-benzyl)-1H-benzoimidazole

HRID 131227
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 131227
C(OC([N:8]1[CH2:13][CH2:12][N:11]([C:14]2[C:42]([F:43])=[CH:41][C:17]3[N:18]=[C:19]([CH2:33][O:34][C:35]4[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=4)[N:20]([CH2:21][C:22]4[CH:27]=[CH:26][C:25]([O:28][C:29]([F:32])([F:31])[F:30])=[CH:24][CH:23]=4)[C:16]=3[CH:15]=2)[CH2:10][CH2:9]1)=O)(C)(C)C.FC(F)(F)C(O)=O.C(=O)(O)[O-].[Na+]>O>[F:43][C:42]1[C:14]([N:11]2[CH2:12][CH2:13][NH:8][CH2:9][CH2:10]2)=[CH:15][C:16]2[N:20]([CH2:21][C:22]3[CH:23]=[CH:24][C:25]([O:28][C:29]([F:30])([F:31])[F:32])=[CH:26][CH:27]=3)[C:19]([CH2:33][O:34][C:35]3[CH:36]=[CH:37][CH:38]=[CH:39][CH:40]=3)=[N:18][C:17]=2[CH:41]=1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

5

Edukt 3

HCID 6422Trifluoroacetic acidHCID 516892Sodium BicarbonateHCID 684669874-[6-fluoro-2-phenoxymethyl-3-(4-trifluoromethoxy-benzyl)-3H-benzoimidazol-5-yl]-piperazine-1-carboxylic acid tert-butyl ester

Produkt 1

HCID 684671025-fluoro-2-phenoxymethyl-6-piperazin-1-yl-1-(4-trifluoromethoxy-benzyl)-1H-benzoimidazole

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962
Water
Lösungsmittel

Versuchsvorschrift

4.6 g of 4-[6-fluoro-2-phenoxymethyl-3-(4-trifluoromethoxy-benzyl)-3H-benzoimidazol-5-yl]-piperazine-1-carboxylic acid tert-butyl ester (7.6 mmol) were stirred in 51 ml trifluoroacetic acid (661 mmol) for 2 h at rt. The reaction mixture was diluted with 500 ml water and the pH adjusted to 8 with solid sodium bicarbonate. The mixture was extracted twice with ethyl acetate and the combined organic phases were washed with brine, dried over magnesium sulfate, filtered and concentrated in vacuo. The residue was then suspended in 70 ml water, the pH adjusted to 9 with ammonium hydroxide, extracted with ethylacetate, washed with water and brine, dried over magnesium sulfate, filtered and concentrated in vacuo., leading to 3.67 g of 5-fluoro-2-phenoxymethyl-6-piperazin-1-yl-1-(4-trifluoromethoxy-benzyl)-1H-benzoimidazole as a light yellow solid (95%). MS(ISP): 500.3 (M+H)+.

Aufarbeitung

  1. extractionThe mixture was extracted twice with ethyl acetate
  2. washthe combined organic phases were washed with brine
  3. dry with materialdried over magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. extractionextracted with ethylacetate
  7. washwashed with water and brine
  8. dry with materialdried over magnesium sulfate
  9. filtrationfiltered
  10. concentrationconcentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-8c4f47d71117406bb39e81a934972966
Quelldatensatz
uspto-grants-2008_06
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07384945B2

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