1 3RE 2-amino-8-(trans-4-methoxycyclohexyl)-4-methyl-6-(1h-pyrazol-3-yl)pyrido[2,3-D]pyrimidin-7(8h)-one 1.000 2 ML9 2-amino-8-[trans-4-(2-hydroxyethoxy)cyclohexyl]-6-(6-methoxypyridin-3-yl)-4-methylpyrido[2,3-D]pyrimidin-7(8h)-one 0.727