Diisopropylethylamine → 5-bromo-1-(tetrahydro-2H-pyran-2-yl)-N-(6-(trifluoromethyl) pyridin-3-yl)-1H-indazole-3-carboxamide

HRID 2367702Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2367702
CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[Br:25][C:26]1[CH:27]=[C:28]2[C:32](=[CH:33][CH:34]=1)[N:31]([CH:35]1[CH2:40][CH2:39][CH2:38][CH2:37][O:36]1)[N:30]=[C:29]2[C:41]([OH:43])=O.C(N(C(C)C)CC)(C)C.[NH2:53][C:54]1[CH:55]=[CH:56][C:57]([C:60]([F:63])([F:62])[F:61])=[N:58][CH:59]=1>CN(C=O)C>[Br:25][C:26]1[CH:27]=[C:28]2[C:32](=[CH:33][CH:34]=1)[N:31]([CH:35]1[CH2:40][CH2:39][CH2:38][CH2:37][O:36]1)[N:30]=[C:29]2[C:41]([NH:53][C:54]1[CH:59]=[N:58][C:57]([C:60]([F:63])([F:61])[F:62])=[CH:56][CH:55]=1)=[O:43]

Komponenten

6

Edukt 4

HCID 81531DiisopropylethylamineHCID 27377445-Amino-2-(trifluoromethyl)pyridineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 698056555-bromo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole-3-carboxylic acid

Produkt 1

HCID 866796985-bromo-1-(tetrahydro-2H-pyran-2-yl)-N-(6-(trifluoromethyl) pyridin-3-yl)-1H-indazole-3-carboxamideAusbeute 93 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

HATU (1.125 g, 2.96 mmol) was added to a solution of 5-bromo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole-3-carboxylic acid (CXVIII) (0.876 g, 2.69 mmol) and diisopropylethylamine (1.03 mL, 5.92 mmol) in DMF stirred at room temperature under argon. After stirring 5 min, the solution was added with 5-amino-2-trifluoromethylpyridine (CXXVII) (0.479 g, 2.96 mmol). The solution was stirred 24 h at room temperature under argon. The DMF was removed under reduced pressure, and the residue was treated with water, sonicated briefly and filtered. The solids were washed with cold water and dried at room temperature. The product was purified by silica gel column chromatography (100% hexanes→7:93 EtOAc:hexanes) to afford 5-bromo-1-(tetrahydro-2H-pyran-2-yl)-N-(6-(trifluoromethyl)pyridin-3-yl)-1H-indazole-3-carboxamide (CXXVIII) as a white solid (1.17 g, 2.50 mmol, 93% yield). 1H NMR (DMSO-d6) δ ppm 10.93 (s, 1H), 9.23 (d, J=1.9 Hz, 1H), 8.60 (dd, J=6.8, 1.4 Hz, 1H), 8.38 (d, J=4.4 Hz, 1H), 7.95 (m, 2H), 7.70 (dd, J=7.1, 1.5 Hz, 1H), 6.04 (dd, J=8.1, 1.9 Hz, 1H), 3.98 (m, 1H), 3.82 (m, 1H), 2.59-2.54 (m, 1H), 2.08-2.03 (m, 2H), 1.81-1.77 (m, 1H). 1.66-1.61 (m, 2H); ESIMS found for C19H16BrF3N4O2 m/z 470.0 (M+H).

Aufarbeitung

  1. stirringAfter stirring 5 min
  2. stirringThe solution was stirred 24 h at room temperature under argon
  3. customThe DMF was removed under reduced pressure
  4. additionthe residue was treated with water
  5. customsonicated briefly
  6. filtrationfiltered
  7. washThe solids were washed with cold water
  8. customdried at room temperature
  9. customThe product was purified by silica gel column chromatography (100% hexanes→7:93 EtOAc:hexanes)

Quellen und Nachweise

ORD-Eintrag
ord-2c37d51f5b98495eae5d6c194484bc6a
Quelldatensatz
uspto-grants-2014_04
Patentnummer
US08697887B2

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