Cesium carbonate → 6-chloro-4-(5-chloropyridin-3-yl)-2-[(trans)-hexahydrocyclopenta[b][1,4]oxazin-4(4aH)-yl]-3-[4-(trifluoromethyl)benzyl]-3H-imidazo[4,5-c]pyridine

HRID 81265

Reaktionsgleichung

Reaktionsgleichung von HRID 81265
Cl[C:2]1[C:7]2[N:8]([CH2:20][C:21]3[CH:26]=[CH:25][C:24]([C:27]([F:30])([F:29])[F:28])=[CH:23][CH:22]=3)[C:9]([N:11]3[CH2:16][CH2:15][O:14][C@@H:13]4[CH2:17][CH2:18][CH2:19][C@@H:12]34)=[N:10][C:6]=2[CH:5]=[C:4]([Cl:31])[N:3]=1.[Cl:32][C:33]1[CH:34]=[C:35](B(O)O)[CH:36]=[N:37][CH:38]=1.C(=O)([O-])[O-].[Cs+].[Cs+]>[Pd](Cl)Cl.C1(P(C2C=CC=CC=2)[C-]2C=CC=C2)C=CC=CC=1.[C-]1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=C1.[Fe+2]>[Cl:31][C:4]1[N:3]=[C:2]([C:35]2[CH:36]=[N:37][CH:38]=[C:33]([Cl:32])[CH:34]=2)[C:7]2[N:8]([CH2:20][C:21]3[CH:22]=[CH:23][C:24]([C:27]([F:29])([F:28])[F:30])=[CH:25][CH:26]=3)[C:9]([N:11]3[CH2:16][CH2:15][O:14][C@@H:13]4[CH2:17][CH2:18][CH2:19][C@@H:12]34)=[N:10][C:6]=2[CH:5]=1

Komponenten

5

Edukt 3

HCID 10796Cesium carbonateHCID 201118775-Chloropyridine-3-boronic acidHCID 86724611HCID 86724611, Verbindung

Produkt 1

HCID 867246126-chloro-4-(5-chloropyridin-3-yl)-2-[(trans)-hexahydrocyclopenta[b][1,4]oxazin-4(4aH)-yl]-3-[4-(trifluoromethyl)benzyl]-3H-imidazo[4,5-c]pyridine

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)Katalysator

Reaktionsbedingungen

Temperatur
90 °C

Versuchsvorschrift

4,6-dichloro-2-[(trans)-hexahydrocyclopenta[b][1,4]oxazin-4(4aH)-yl]-3-[4-(trifluoromethyl)benzyl]-3H-imidazo[4,5-c]pyridine (racemate, 180 mg, 0.38 mmol), 5-chloropyridine-3-boronic acid (65.7 mg, 0.42 mmol), cesium carbonate (617 mg, 1.9 mmol), and 1,1′-Bis(diphenylphosphino) ferrocene-palladium(II)dichloride (46.3 mg, 0.076 mmol) were combined in a vial that had been oven-dried and flushed with nitrogen. Dioxane (75 mL) was added, and the vial was sealed and heated to 90° C. for 4 hours. The reaction mixture was cooled to room temperature, filtered through celite, and the filtrate was concentrated under reduced pressure. The residue was purified by silica gel chromatography (0-100% ethyl acetate/hexanes, linear gradient) to afford 6-chloro-4-(5-chloropyridin-3-yl)-2-[(trans)-hexahydrocyclopenta[b][1,4]oxazin-4(4aH)-yl]-3-[4-(trifluoromethyl)benzyl]-3H-imidazo[4,5-c]pyridine (racemic). MS APCl calc'd. for C26H22Cl2F3N5O [M+H]+ 548. found 548.

Aufarbeitung

  1. customhad been oven-dried
  2. customflushed with nitrogen
  3. additionDioxane (75 mL) was added
  4. customthe vial was sealed
  5. temperatureThe reaction mixture was cooled to room temperature
  6. filtrationfiltered through celite
  7. concentrationthe filtrate was concentrated under reduced pressure
  8. customThe residue was purified by silica gel chromatography (0-100% ethyl acetate/hexanes, linear gradient)

Quellen und Nachweise

ORD-Eintrag
ord-7d4282254eeb43d18ef7d6baf6d9dc3b
Quelldatensatz
uspto-grants-2014_09
Patentnummer
US08846657B2

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