label: 1-tert-butyl-3-(6-(2,6-dichlorophenyl)-2-((4-(diethylamino)butyl)amino)pyrido(2,3-d)pyrimidin-7-yl)urea
label_lc: 1-tert-butyl-3-(6-(2,6-dichlorophenyl)-2-((4-(diethylamino)butyl)amino)pyrido(2,3-d)pyrimidin-7-yl)urea