Reaktion #11445

Reaktionsgleichung

N-[4-(2-Butyl-6,7-dimethyl-4-phenoxy-1H-imidazo[4,5-c]pyridin-1-yl)butyl]-4-[[2-(dimethylamino)ethoxy](phenyl)methyl]benzamide

ammonium acetate

sodium hydroxide

→

N-[4-(4-amino-2-butyl-6,7-dimethyl-1H-imidazo[4,5-c]pyridin-1-yl)butyl]-4-[[2-(dimethylamino)ethoxy](phenyl)methyl]benzamide

Ausbeute 15.3%

Lösungsmittel

water

Reaktionsbedingungen

Aufarbeitung

1. 1
   SonstigeThe tube was sealed
2. 2
   TemperaturThe reaction was cooled to room temperature
3. 3
   Extraktionextracted with chloroform (3×25 mL)
4. 4
   WaschenThe combined organic fractions were washed with water
5. 5
   Trocknendried (Na2SO4)
6. 6
   Sonstigedecanted
7. 7
   Sonstigeevaporated
8. 8
   Sonstigeto provide a yellow oil
9. 9
   SonstigePurification by flash column chromatography (silica gel, 95:5 dichloromethane/methanol gradient to 9:1 dichloromethane/methanol and finally 94:5:1 dichloromethane/methanol/triethylamine)

Vorschrift

N-[4-(2-Butyl-6,7-dimethyl-4-phenoxy-1H-imidazo[4,5-c]pyridin-1-yl)butyl]-4-[[2-(dimethylamino)ethoxy](phenyl)methyl]benzamide (101 mg, 0.16 mmol) and ammonium acetate (1.1 g) were placed into a pressure tube along with a stir bar. The tube was sealed and heated at 150° C. for 16 hours. The reaction was cooled to room temperature and diluted with water. The resulting cloudy aqueous mixture was made basic with 10% aqueous sodium hydroxide and extracted with chloroform (3×25 mL). The combined organic fractions were washed with water followed by brine, dried (Na2SO4), decanted and evaporated to provide a yellow oil. Purification by flash column chromatography (silica gel, 95:5 dichloromethane/methanol gradient to 9:1 dichloromethane/methanol and finally 94:5:1 dichloromethane/methanol/triethylamine) provided 14 mg of N-[4-(4-amino-2-butyl-6,7-dimethyl-1H-imidazo[4,5-c]pyridin-1-yl)butyl]-4-[[2-(dimethylamino)ethoxy](phenyl)methyl]benzamide as a yellow oil.

Quelle