3-[[5-bromo-6-(2,2-dimethylpropylamino)-2-ethylpyrimidin-4-yl]amino]-N,4-dimethylbenzamide;3-[[5-cyano-6-(dimethylamino)-2-(1-methylpiperidin-4-yl)oxypyrimidin-4-yl]amino]-N,4-dimethylbenzamide;3-[[5-cyano-6-[ethyl(methyl)amino]-2-(1-methylpiperidin-4-yl)oxypyrimidin-4-yl]amino]-N,4-dimethylbenzamide;3-[[2-[3-(dimethylamino)propylamino]-6-[2,2-dimethylpropyl(methyl)amino]-5-nitropyrimidin-4-yl]amino]-N,4-dimethylbenzamide