Dimethylformamide → HCID 178469194, compound

Participants

Reaction Steps

Ethyl 1-{5-[3-(aminomethyl)phenyl]pyrimidin-2-yl}piperidine-4-carboxylate (303 mg) was mixed with DMF (5 ml), and CDI (188 mg) was added thereto, followed by stirring at room temperature for 1 hour. 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. Guanidine hydrochloride (170 mg) and sodium hydride (55% suspended in oil) (77 mg) were suspended in DMF (2 ml), and a solution of the reaction mixture obtained immediately before in DMF (1 ml) was added thereto, followed by stirring at room temperature for 1 hour. 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 silica gel column chromatography (CHCl3/MeOH) to obtain ethyl 1-[5-(3-{[(carbamimidoylcarbamoyl)amino]methyl}phenyl)pyrimidin-2-yl]piperidine-4-carboxylate (74 mg).

Provenance & Evidence