![1H-indazol-6-yl(pyrido[2,3-d]pyrimidin-4-yl)amine](http://zinc12.docking.org/img/rings/534917.gif)
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![3H-benzimidazol-5-yl(pyrido[2,3-d]pyrimidin-4-yl)amine](http://zinc12.docking.org/img/rings/534929.gif)
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![4-(1H-benzimidazol-2-ylthio)pyrido[2,3-d]pyrimidine](http://zinc12.docking.org/img/rings/535101.gif)
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![4-(3,4-dihydro-1H-isoquinolin-2-yl)pyrido[2,3-d]pyrimidine](http://zinc12.docking.org/img/rings/532887.gif)
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![2,3-dihydro-1,4-benzodioxin-7-yl(pyrido[2,3-d]pyrimidin-4-yl)amine](http://zinc12.docking.org/img/rings/534919.gif)
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![Piperonyl(pyrido[2,3-d]pyrimidin-4-yl)amine](http://zinc12.docking.org/img/rings/532365.gif)
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![Pyrido[2,3-d]pyrimidin-4-yl(8-quinolyl)amine](http://zinc12.docking.org/img/rings/534920.gif)
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![N-piperonyl-2-(pyrido[2,3-d]pyrimidin-2-ylthio)acetamide](http://zinc12.docking.org/img/rings/236347.gif)
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![(1-phenylcyclopropyl)-pyrido[2,3-d]pyrimidin-4-yl-amine](http://zinc12.docking.org/img/rings/532562.gif)
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![(1-phenylcyclopropyl)methyl-pyrido[2,3-d]pyrimidin-4-yl-amine](http://zinc12.docking.org/img/rings/532395.gif)
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![5-(3-furyl)-3-[(pyrido[2,3-d]pyrimidin-2-ylthio)methyl]-1,2,4-oxadiazole](http://zinc12.docking.org/img/rings/480409.gif)
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![4-[4-(2-pyrimidyl)piperazino]pyrido[2,3-d]pyrimidine](http://zinc12.docking.org/img/rings/532898.gif)
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![4-[4-(2-pyridyl)piperazino]pyrido[2,3-d]pyrimidine](http://zinc12.docking.org/img/rings/532897.gif)
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![7-[4-(2-pyridyl)piperazino]pyrido[2,3-d]pyrimidine](http://zinc12.docking.org/img/rings/228734.gif)
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![4-(4-phenylpiperazino)pyrido[2,3-d]pyrimidine](http://zinc12.docking.org/img/rings/532893.gif)
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![Pyrido[2,3-d]pyrimidin-4-yl-(4-pyrrolidinophenyl)amine](http://zinc12.docking.org/img/rings/534914.gif)
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![(1-phenylcyclobutyl)methyl-pyrido[2,3-d]pyrimidin-4-yl-amine](http://zinc12.docking.org/img/rings/532396.gif)
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![2-furyl-(4-pyrido[2,3-d]pyrimidin-4-ylpiperazino)methanone](http://zinc12.docking.org/img/rings/532917.gif)
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![2-phenyl-5-[(pyrido[2,3-d]pyrimidin-2-ylthio)methyl]-1,3,4-oxadiazole](http://zinc12.docking.org/img/rings/464309.gif)
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![(4-morpholinophenyl)-pyrido[2,3-d]pyrimidin-4-yl-amine](http://zinc12.docking.org/img/rings/534922.gif)
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![4-(4-benzylpiperazino)pyrido[2,3-d]pyrimidine](http://zinc12.docking.org/img/rings/532891.gif)
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![4-(4-benzylpiperidino)pyrido[2,3-d]pyrimidine](http://zinc12.docking.org/img/rings/532913.gif)
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![(1-benzyl-4-piperidyl)-pyrido[2,3-d]pyrimidin-4-yl-amine](http://zinc12.docking.org/img/rings/532387.gif)
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![(2-phenyl-2-pyrrolidino-ethyl)-pyrido[2,3-d]pyrimidin-4-yl-amine](http://zinc12.docking.org/img/rings/532389.gif)
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![(4-anilinophenyl)-pyrido[2,3-d]pyrimidin-4-yl-amine](http://zinc12.docking.org/img/rings/534921.gif)
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![(4-phenoxyphenyl)-pyrido[2,3-d]pyrimidin-4-yl-amine](http://zinc12.docking.org/img/rings/534915.gif)
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![(4-phenyltetrahydropyran-4-yl)methyl-pyrido[2,3-d]pyrimidin-4-yl-amine](http://zinc12.docking.org/img/rings/532397.gif)
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![Pyrido[2,3-d]pyrimidin-4-yl-[4-(4-pyridylmethyl)phenyl]amine](http://zinc12.docking.org/img/rings/534926.gif)
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![Phenyl-[(7-phenylpyrido[2,3-d]pyrimidin-6-yl)methyl]amine](http://zinc12.docking.org/img/rings/590100.gif)
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![(2-phenyl-2-piperidino-ethyl)-pyrido[2,3-d]pyrimidin-4-yl-amine](http://zinc12.docking.org/img/rings/532393.gif)
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![(4-benzoxyphenyl)-pyrido[2,3-d]pyrimidin-4-yl-amine](http://zinc12.docking.org/img/rings/534916.gif)
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![Dibenzyl(pyrido[2,3-d]pyrimidin-4-yl)amine](http://zinc12.docking.org/img/rings/532902.gif)
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![4-(pyrido[2,3-d]pyrimidin-4-ylamino)-N-thiazol-2-yl-benzenesulfonamide](http://zinc12.docking.org/img/rings/534927.gif)
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![N-isoxazol-5-yl-4-(pyrido[2,3-d]pyrimidin-4-ylamino)benzenesulfonamide](http://zinc12.docking.org/img/rings/534924.gif)
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![4-(pyrido[2,3-d]pyrimidin-4-ylamino)benzoic Acid Cyclohexyl Ester](http://zinc12.docking.org/img/rings/534932.gif)
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![4-(pyrido[2,3-d]pyrimidin-4-ylamino)-N-(2-pyridyl)benzenesulfonamide](http://zinc12.docking.org/img/rings/534923.gif)
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![(2-besyl-2-phenyl-ethyl)-pyrido[2,3-d]pyrimidin-4-yl-amine](http://zinc12.docking.org/img/rings/532401.gif)
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![4-(4-piperonylpiperazino)pyrido[2,3-d]pyrimidine](http://zinc12.docking.org/img/rings/532895.gif)
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![4-(2-morpholino-7-phenyl-pyrido[2,3-d]pyrimidin-4-yl)morpholine](http://zinc12.docking.org/img/rings/247710.gif)
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![4-(4-benzhydrylpiperazino)pyrido[2,3-d]pyrimidine](http://zinc12.docking.org/img/rings/532911.gif)
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![3-[1-[5-(5-phenylpyrido[2,3-d]pyrimidin-7-yl)-2-pyridyl]-4-piperidyl]tetrahydrofuran-2-one](http://zinc12.docking.org/img/rings/93205.gif)
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