![2-(4-keto-1H-pyrazolo[3,4-d]pyrimidin-5-yl)acetic Acid Cyclopentyl Ester](http://zinc12.docking.org/img/rings/277732.gif)
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![5-[2-(tetrahydrofuran-3-ylmethylamino)ethyl]-1H-pyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/75005.gif)
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![6-(2-piperidinoethylamino)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/246157.gif)
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![6-[(2-pyridylmethylamino)methyl]-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/26423.gif)
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![N-(cyclobutylmethyl)-2-(4-keto-1H-pyrazolo[3,4-d]pyrimidin-5-yl)acetamide](http://zinc12.docking.org/img/rings/148533.gif)
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![5-(2-phenoxyethyl)-1H-pyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/86356.gif)
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![5-[3-(cyclopentylamino)propyl]-1H-pyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/75029.gif)
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![6-(2-cyclohexen-1-ylethylamino)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/168508.gif)
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![2-(4-keto-1H-pyrazolo[3,4-d]pyrimidin-5-yl)acetic Acid 1,2,4-oxadiazol-5-ylmethyl Ester](http://zinc12.docking.org/img/rings/480564.gif)
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![2-(4-keto-1H-pyrazolo[3,4-d]pyrimidin-5-yl)-N-(1H-pyrazol-4-ylmethyl)acetamide](http://zinc12.docking.org/img/rings/56536.gif)
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![2-(4-keto-1H-pyrazolo[3,4-d]pyrimidin-5-yl)-N-(2-thenyl)acetamide](http://zinc12.docking.org/img/rings/39389.gif)
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![2-(4-keto-1H-pyrazolo[3,4-d]pyrimidin-5-yl)-N-(4-piperidyl)acetamide](http://zinc12.docking.org/img/rings/479167.gif)
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![2-(4-keto-1H-pyrazolo[3,4-d]pyrimidin-5-yl)-N-(pyrrolidin-3-ylmethyl)acetamide](http://zinc12.docking.org/img/rings/315103.gif)
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![2-(4-keto-1H-pyrazolo[3,4-d]pyrimidin-5-yl)-N-(tetrahydrofurfuryl)acetamide](http://zinc12.docking.org/img/rings/479030.gif)
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![2-(4-keto-1H-pyrazolo[3,4-d]pyrimidin-5-yl)acetic Acid Tetrahydrofurfuryl Ester](http://zinc12.docking.org/img/rings/480522.gif)
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![2-(4-keto-5H-pyrazolo[3,4-d]pyrimidin-1-yl)-N-(2-thenyl)acetamide](http://zinc12.docking.org/img/rings/432537.gif)
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![6-[[(2-keto-2-pyrrolidino-ethyl)amino]methyl]-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/24967.gif)
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![2-(4-keto-1H-pyrazolo[3,4-d]pyrimidin-5-yl)-N-phenyl-acetamide](http://zinc12.docking.org/img/rings/86321.gif)
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![2-(4-keto-1H-pyrazolo[3,4-d]pyrimidin-5-yl)acetic Acid Cyclohexyl Ester](http://zinc12.docking.org/img/rings/277655.gif)
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