1-(3-Aminopropyl)-4-methylpiperazine → 3-(3,5-Dimethoxy-phenyl)-1-ethyl-7-[3-(4-methyl-piperazin-1-yl)-propylamino]-3,4-dihydro-pyrimido[4,5-d]pyrimidin-2(1H)-one

Participants

Reaction Steps

Using the general procedure above, 3-(3,5-dimethoxy-phenyl)-1-ethyl-7-methanesulfinyl-3,4-dihydro-pyrimido[4,5-d]pyrimidin-2(1H)-one and 0.1142 g (0.726 mmol) of 3-(4-methyl-piperazin-1-yl)-propylamine were reacted. The residue was chromatographed over silica gel, eluting with ethyl acetate/ethanol/triethylamine (9:2:1 v/v/v), to give 0.0712 g (57%) of the title compound: HPLC=96% pure.

Provenance & Evidence