Bicyclo[2.2.1]heptane-1-methanesulfonic acid, 7,7-dimethyl-2-oxo-, (1S)- → 2-(3-tert-butyl-isoxazol-5-yl)-7-chloro-5-(2-trifluoromethyl-phenyl)-1H-imidazo[4,5-b]pyridine

HRID 570214Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 570214
[NH2:1][C:2]1[C:3]([NH:19][C:20]([C:22]2[O:26][N:25]=[C:24]([C:27]([CH3:30])([CH3:29])[CH3:28])[CH:23]=2)=O)=[N:4][C:5]([C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][C:10]=2[C:15]([F:18])([F:17])[F:16])=[CH:6][C:7]=1[Cl:8].C12(CS(O)(=O)=O)C(C)(C)C(CC1)CC2=O>O1CCOCC1.CCOC(C)=O>[C:27]([C:24]1[CH:23]=[C:22]([C:20]2[NH:1][C:2]3[C:3]([N:19]=2)=[N:4][C:5]([C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][C:10]=2[C:15]([F:18])([F:17])[F:16])=[CH:6][C:7]=3[Cl:8])[O:26][N:25]=1)([CH3:30])([CH3:29])[CH3:28]

Komponenten

5

Edukt 2

HCID 18462Bicyclo[2.2.1]heptane-1-methanesulfonic acid, 7,7-dimethyl-2-oxo-, (1S)-HCID 674111003-Tert-butyl-isoxazole-5-carboxylic acid [3-amino-4-chloro-6-(2-trifluoromethyl-phenyl)-pyridin-2-yl]-amide

Produkt 1

HCID 1360731722-(3-tert-butyl-isoxazol-5-yl)-7-chloro-5-(2-trifluoromethyl-phenyl)-1H-imidazo[4,5-b]pyridine

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 8857Ethyl AcetateLösungsmittelHCID 312751,4-DioxaneLösungsmittel

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

A solution of 3-tert-butyl-isoxazole-5-carboxylic acid [3-amino-4-chloro-6-(2-trifluoromethyl-phenyl)-pyridin-2-yl]-amide (36.2 mg, 0.0825 mmol, prepared as described in STEP B above) in 1,4-dioxane (10 mL) was treated with (+)-10-camphorsulfonic acid (38.3 mg, 0.165 mmol), and the mixture was heated to 100° C. for 5 h. The cooled mixture was diluted with EtOAc (20 mL) and washed with saturated aqueous NaHCO3 (20 mL). The organic extract was dried over MgSO4 and concentrated in vacuo. The residue was purified on an 8-g SEPRA Si 35 SPE column (Flow rate=15 mL/min; Eluent=EtOAc-hexanes, 1:99 for 10 min, then 1:99 to 1:3 over 40 min) to yield 2-(3-tert-butyl-isoxazol-5-yl)-7-chloro-5-(2-trifluoromethyl-phenyl)-1H-imidazo[4,5-b]pyridine as a white solid. 1H-NMR (400 MHz, CDCl3) δ: 7.77 (d, J=7.8 Hz, 1H), 7.58-7.64 (m, 1H), 7.50-7.58 (m, 2H), 7.49 (s, 1H), 7.16 (s, 1H), 1.88 (br. s., 1H), 1.39 (s, 9H). Mass Spectrum (LCMS, APCI pos.): Calculated for C20H16N4OClF3: 421.1 (M+H); Measured: 421.1.

Aufarbeitung

  1. washwashed with saturated aqueous NaHCO3 (20 mL)
  2. extractionThe organic extract
  3. dry with materialwas dried over MgSO4
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified on an 8-g SEPRA Si 35 SPE column (Flow rate=15 mL/min

Quellen und Nachweise

ORD-Eintrag
ord-bb70ee5f9cf14585b76c41b623c9ec55
Quelldatensatz
uspto-grants-2015_05
Patentnummer
US09023846B2

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