HCID 58577496, compound → HCID 58577636, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 2-chloro-1-(2,2-diethoxyethyl)-1H-benzimidazole (860 mg) and 3-(4-aminophenyl)-1-ethyl-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (636 mg) was heated at 150° C. for 50 min. The reaction mixture was partitioned between AcOEt/THF (1/1) and 1 M NaOH aqueous solution. The organic layer was separated, washed with brine, dried over MgSO4, and concentrated under reduced pressure. The residue was purified by basic silica gel column chromatography eluting with THF and recrystallized from THF to give 1-ethyl-3-[4-(1H-imidazo[1,2-a]benzimidazol-1-yl)phenyl]-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (311 mg).

Provenance & Evidence