3-(2-ethylphenyl)-10-(p-tolyl)pyrimido[4,5-b]quinoline-2,4(3H,10H)-dione-5-d

3-(2-isopropylphenyl)-10-(p-tolyl)pyrimido[4,5-b]quinoline-2,4(3H,10H)-dione-5-d

Pyrimido[4,5-b]quinoline-2,4(3H,10H)-dione-5-d,3-[2-(1,1-dimethylethyl)phenyl]-10-(4-methylphenyl)-