1-Tert-butyl-3-[6-(2,6-dichlorophenyl)-2-[4-(diethylamino)butylamino]pyrido[2,3-d]pyrimidin-7-yl]urea

N-tert-Butyl-N'-[6-(2,6-dichlorophenyl)-2-{[4-(diethylamino)butyl]amino}pyrido[2,3-d]pyrimidin-7-yl]urea