1,4'-Bipiperidine → 7-(1,4'-bipiperidin-1'-yl)-5-chloro-1-(2,6-difluorophenyl)-3,4-dihydropyrimido[4,5-d]pyrimidin-2(1H)-one

Participants

Reaction Steps

To a solution of 5-chloro-1-(2,6-difluorophenyl)-7-(methylsulfinyl)-3,4-dihydropyrimido[4,5-d]pyrimidin-2(1H)-one (200 mg, 0.56 mmol) in DCM (10 mL) were added 1,4′-bipiperidine (270 mg, 1.61 mmol) and N,N-diisopropylethylamine (0.3 mL, 1.7 mmol). The resultant solution was stirred at room temperature over night. The result mixture was concentrated. CombiFlash chromatography (mobile phase DCM/DCM[90]+MeOH[7]+NH4OH[3]) provided the title compound as a white solid (298 mg, 83%). LC-MS m/z 463 (M+H)+.

Provenance & Evidence