Potassium Carbonate → HCID 118113997, compound

Participants

Reaction Conditions

Reaction Steps

To a stirred mixture of 4-((6-iodo-3H-imidazo[4,5-b]pyridin-3-yl)methyl)-2-methoxyphenol (1.32 g, 3.46 mmol) and potassium carbonate (1.30 g, 9.41 mmol) in acetonitrile (25 mL) was added 5-(1-chloroethyl)-2-methoxypyridine (0.72 g, 4.20 mmol). The mixture was heated at 100° C. After 6.5 h, an additional quantity 5-(1-chloroethyl)-2-methoxypyridine (0.300 g, 1.75 mmol) was added, and heating was continued. After 22 h, the mixture was allowed to cool to room temperature and was partitioned between water and 1:5 ethyl acetate/diethyl ether. The phases were separated, and the aqueous phase was extracted with diethyl ether. The combined organic phases were washed with water, dried over magnesium sulfate, filtered, and concentrated. Chromatographic purification (40 g SiO2 column, 0-10% 0.01 M ammonia in methanol/dichlormethane elute) afforded 0.88 g (49%) of 6-iodo-3-(3-methoxy-4-(1-(6-methoxypyridin-3-yl)ethoxy)benzyl)-3H-imidazo[4,5-b]pyridine as an impure solid.

Provenance & Evidence