Water → 6-[3-(2-Fluoro-phenyl)-5-methyl-isoxazol-4-ylmethoxy]-N-(2,2,2-trifluoro-ethyl)-nicotinamide

HRID 331795

Reaktionsgleichung

Reaktionsgleichung von HRID 331795
C[Al](C)C.[F:5][C:6]([F:10])([F:9])[CH2:7][NH2:8].C[O:12][C:13](=O)[C:14]1[CH:19]=[CH:18][C:17]([O:20][CH2:21][C:22]2[C:23]([C:28]3[CH:33]=[CH:32][CH:31]=[CH:30][C:29]=3[F:34])=[N:24][O:25][C:26]=2[CH3:27])=[N:16][CH:15]=1.O>O1CCOCC1>[F:34][C:29]1[CH:30]=[CH:31][CH:32]=[CH:33][C:28]=1[C:23]1[C:22]([CH2:21][O:20][C:17]2[CH:18]=[CH:19][C:14]([C:13]([NH:8][CH2:7][C:6]([F:10])([F:9])[F:5])=[O:12])=[CH:15][N:16]=2)=[C:26]([CH3:27])[O:25][N:24]=1

Komponenten

6

Edukt 4

HCID 962WaterHCID 9773Ethanamine, 2,2,2-trifluoro-HCID 16682925TrimethylaluminumHCID 684455236-[3-(2-Fluoro-phenyl)-5-methyl-isoxazol-4-ylmethoxy]-nicotinic acid methyl ester

Produkt 1

HCID 575201016-[3-(2-Fluoro-phenyl)-5-methyl-isoxazol-4-ylmethoxy]-N-(2,2,2-trifluoro-ethyl)-nicotinamideAusbeute 88,5 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 312751,4-DioxaneLösungsmittel

Versuchsvorschrift

A solution of trimethylaluminium (2 M in toluene, 1.17 mL, 2.3 mmol) was added dropwise (exothermic) to a solution of 2,2,2-trifluoroethylamine (188 μL, 2.3 mmol) in dioxane (15 mL) and the resulting mixture was stirred at room temperature for 1.5 h. Then 6-[3-(2-fluoro-phenyl)-5-methyl-isoxazol-4-ylmethoxy]-nicotinic acid methyl ester (200 mg, 0.58 mmol) was added. The resulting mixture was then heated at 85° C. for 2 h and then cooled to room temperature and then poured into water and extracted with ethyl acetate which was then washed with brine, dried over sodium sulfate and evaporated. Purification by chromatography (SiO2, heptane:ethyl acetate=2:1 to 1:1) afforded the title compound (210 mg, 88%) which was obtained as a colourless oil. MS: m/e=410.4 [M+H]+.

Aufarbeitung

  1. temperatureThe resulting mixture was then heated at 85° C. for 2 h
  2. temperaturecooled to room temperature
  3. extractionextracted with ethyl acetate which
  4. washwas then washed with brine
  5. dry with materialdried over sodium sulfate
  6. customevaporated
  7. customPurification by chromatography (SiO2, heptane:ethyl acetate=2:1 to 1:1)

Quellen und Nachweise

ORD-Eintrag
ord-04398cf5f74e418799971aff7876bebb
Quelldatensatz
uspto-grants-2014_11
Patentnummer
US08877782B2

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