2-Bromo-5-fluoropyridine → HCID 66705641, Verbindung

HRID 425359Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 425359
Br[C:2]1[CH:7]=[CH:6][C:5]([CH2:8][C:9]([C:12]2[N:13]([S:23]([N:26]([CH3:28])[CH3:27])(=[O:25])=[O:24])[CH:14]=[C:15]([CH2:17][C:18]([CH3:22])([CH3:21])[CH2:19][CH3:20])[N:16]=2)([OH:11])[CH3:10])=[CH:4][CH:3]=1.Br[C:30]1[CH:35]=[CH:34][C:33]([F:36])=[CH:32][N:31]=1.C[Sn](C)C.C[Sn](C)C>O1CCOCC1.O.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[Pd]>[CH3:21][C:18]([CH3:22])([CH2:19][CH3:20])[CH2:17][C:15]1[N:16]=[C:12]([C:9]([OH:11])([CH3:10])[CH2:8][C:5]2[CH:6]=[CH:7][C:2]([C:30]3[CH:35]=[CH:34][C:33]([F:36])=[CH:32][N:31]=3)=[CH:3][CH:4]=2)[N:13]([S:23]([N:26]([CH3:28])[CH3:27])(=[O:25])=[O:24])[CH:14]=1

Komponenten

7

Edukt 3

HCID 27831712-Bromo-5-fluoropyridineHCID 6327618HexamethylditinHCID 59140412HCID 59140412, Verbindung2×

Produkt 1

HCID 66705641HCID 66705641, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 11979704Tetrakis(triphenylphosphine)palladiumKatalysatorHCID 962WaterLösungsmittelHCID 312751,4-DioxaneLösungsmittel

Versuchsvorschrift

Palladium tetrakis(triphenylphosphine) (221 mg, 0.19 mmol) was added to a degassed, ambient temperature solution of 2-[2-(4-bromophenyl)-1-hydroxy-1-methylethyl]-4-(2,2-dimethylbutyl)-N,N-dimethyl-1H-imidazole-1-sulfonamide (Intermediate 11) (900 mg, 1.9 mmol), 2-bromo-5-fluoropyridine (336 mg, 1.9 mmol) and hexamethylditin (626 mg, 1.9 mmol) in 1,4-dioxane (20 mL). After stirring at reflux overnight, the reaction mixture was diluted with water and extracted with ethyl acetate. The combined organic extracts were dried (magnesium sulfate) and concentrated in vacuo. Chromatography over silica eluting with 0-60% ethyl acetate/hexane afforded 4-(2,2-dimethylbutyl)-2-{2-[4-(5-fluoropyridin-2-yl)phenyl]-1-hydroxy-1-methylethyl}-N,N-dimethyl-1H-imidazole-1-sulfonamide.

Aufarbeitung

  1. temperatureat reflux overnight
  2. extractionextracted with ethyl acetate
  3. dry with materialThe combined organic extracts were dried (magnesium sulfate)
  4. concentrationconcentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-3648b3f4e1d048928d85ab33953c50f2
Quelldatensatz
uspto-grants-2012_01
Patentnummer
US08106070B2

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