Water → HCID 22485101, compound

Participants

Reaction Conditions

Reaction Steps

Methyl 3-(4-((4-bromobutyryl)amino)-2-chlorobenzyl)-2-methyl-3H-imidazo[4,5-b]pyridine-5-carboxylate (425 mg) was dissolved in N,N-dimethylformamide (5 ml) and potassium carbonate (245 mg) was added, which was followed by stirring at 60° C. for 2 hr. Water was added to the reaction mixture under ice-cooling and the mixture was extracted with ethyl acetate. The organic layer was washed successively with water, saturated aqueous sodium hydrogen carbonate solution and saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. Ethanol (10 ml) was added to the residue, and the mixture was heated and allowed to cool. The precipitated crystals were collected by filtration and dried under reduced pressure with heating to give methyl 3-(2-chloro-4-(2-oxotetrahydro-1H-pyrrol-1-yl)benzyl)-2-methyl-3H-imidazo[4,5-b]pyridine-5-carboxylate (235 mg) as pale-yellow crystals.

Provenance & Evidence