Dimethylformamide → HCID 178498103, compound

Participants

Reaction Steps

Methyl 4-(4-{5-[3-(aminomethyl)phenyl]pyrimidin-2-yl}piperazin-1-yl)-3-chlorobenzoate (207 mg) was mixed with DMF (5 ml), and CDI (154 mg) was added thereto at 0° C., followed by stirring at room temperature for 2 hours. The reaction mixture was concentrated under reduced pressure, and EtOAc and a saturated aqueous sodium hydrogen carbonate solution were then added thereto. The organic layer was dried over Na2SO4 and concentrated under reduced pressure. The obtained residue was mixed with DMF (5 ml), and guanidine hydrochloride (50 mg) and DBU(204 mg) were added thereto, followed by stirring at 70° C. for 5 hours. The reaction mixture was concentrated under reduced pressure, water was then added thereto, and the insoluble matter was collected by filtration. The obtained solid was purified by basic silica gel column chromatography (CHCl3/MeOH) to obtain methyl 4-{4-[5-(3-{[(carbamimidoylcarbamoyl)amino]methyl}phenyl)pyrimidin-2-yl]piperazin-1-yl}-3-chlorobenzoate (208 mg).

Provenance & Evidence