1 FLW 6-(2,4-difluorophenoxy)-2-{[3-hydroxy-1-(2-hydroxyethyl)propyl]amino}-8-methylpyrido[2,3-D]pyrimidin-7(8h)-one 1.000 2 FLY 6-(2,4-difluorophenoxy)-8-methyl-2-[(1-methylethyl)amino]pyrido[2,3-D]pyrimidin-7(8h)-one 0.862 3 891 6-(2,4-difluorophenoxy)-8-methyl-2-{[(1s)-1-methyl-2-(methylsulfonyl)ethyl]amino}pyrido[2,3-D]pyrimidin-7(8h)-one 0.758 4 FLS 6-(2,4-difluorophenoxy)-8-methyl-2-{[(1r)-1-methyl-2-(methylsulfonyl)ethyl]amino}pyrido[2,3-D]pyrimidin-7(8h)-one 0.758 5 533 6-(2,4-difluorophenoxy)-8-methyl-2-{[(1r)-1-methyl-2-(2h-tetrazol-2-yl)ethyl]amino}pyrido[2,3-D]pyrimidin-7(8h)-one 0.735 6 FMK 6-(2,4-difluorophenoxy)-8-methyl-2-{[(1s)-1-methyl-2-(2h-tetrazol-2-yl)ethyl]amino}pyrido[2,3-D]pyrimidin-7(8h)-one 0.735