Cesium carbonate → HCID 86686763, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 1,1′-[2-(methylsulfanyl)pyrimidine-4,6-diyl]bis[2-(difluoromethyl)-1H-benzimidazole] (2 g) in N,N-dimethylacetamide (10 mL) were added tert-butyl (3S)-3-(hydroxymethyl)pyrrolidine-1-carboxylate (965 mg) and cesium carbonate (2.1 g), followed by stirring at 60° C. for 5 hours. After the completion of the reaction, to the reaction solution was added ice water and the precipitated solid was collected by filtration. After drying, the resultant was dissolved in dichloromethane and purified by silica gel column chromatography (hexane:ethyl acetate=90:10-65:35) to obtain tert-butyl (3S)-3-[({6-[2-(difluoromethyl)-1H-benzimidazol-1-yl]-2-(methylsulfanyl)pyrimidin-4-yl}oxy)methyl]pyrrolidine-1-carboxylate (2.01 g).

Provenance & Evidence