![6-(cyclopropylamino)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/168488.gif)
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![5-pyrrolidin-3-yl-1H-pyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/557059.gif)
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![5-tetrahydrothiophen-3-yl-1H-pyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/591599.gif)
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![5-(2-cyclopropylethyl)-1H-pyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/270387.gif)
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![5-cyclopentyl-1H-pyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/591611.gif)
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![5-(1,2,4-oxadiazol-5-ylmethyl)-1H-pyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/333758.gif)
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![1-(2-pyrimidyl)-5H-pyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/568657.gif)
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![6-(pyrrolidin-3-ylamino)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/247617.gif)
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![6-morpholino-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/168728.gif)
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![6-piperazino-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/168598.gif)
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![5-(2-furfuryl)-1H-pyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/616003.gif)
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![5-(3-thenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/129413.gif)
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![5-(4-piperidyl)-1H-pyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/556980.gif)
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![5-tetrahydropyran-4-yl-1H-pyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/591615.gif)
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![5-tetrahydrothiopyran-4-yl-1H-pyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/591617.gif)
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![5-[2-(cyclopropylamino)ethyl]-1H-pyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/75060.gif)
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![6-(cyclobutylmethylamino)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/168831.gif)
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![6-piperidino-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/168462.gif)
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![1-phenyl-5H-pyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/84822.gif)
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![5-cyclohexyl-1H-pyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/591602.gif)
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![1-(1,1-diketothiolan-3-yl)-5H-pyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/568654.gif)
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![6-(1H-pyrazol-4-ylmethylamino)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/247016.gif)
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![6-(isoxazol-3-ylmethylamino)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/247134.gif)
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![6-(isoxazol-4-ylmethylamino)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/247192.gif)
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![6-(thiazol-2-ylmethylamino)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/252175.gif)
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![6-(thiazol-4-ylmethylamino)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/247670.gif)
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![6-(thiazol-5-ylmethylamino)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/376254.gif)
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![6-[(2-imidazolin-2-ylthio)methyl]-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/361198.gif)
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![6-(1,4-diazepan-1-yl)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/168514.gif)
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![6-(2-furfurylamino)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/168850.gif)
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![6-(2-thenylamino)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/168538.gif)
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![6-(3-furfurylamino)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/247339.gif)
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![6-(3-piperidylamino)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/247177.gif)
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![6-(3-thenylamino)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/246201.gif)
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![6-(4-piperidylamino)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/168608.gif)
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![6-(morpholinomethyl)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/122286.gif)
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![6-(piperazinomethyl)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/24961.gif)
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![6-(tetrahydrofurfurylamino)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/247777.gif)
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![6-(tetrahydrothiopyran-4-ylamino)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/247945.gif)
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![6-(thiomorpholinomethyl)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/122447.gif)
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![6-[2-(cyclopropylamino)ethylamino]-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/249245.gif)
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![N-cyclopropyl-2-(4-keto-1H-pyrazolo[3,4-d]pyrimidin-5-yl)acetamide](http://zinc12.docking.org/img/rings/239901.gif)
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![5-(4-piperidylmethyl)-1H-pyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/557091.gif)
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![5-[2-(cyclopropylmethylamino)ethyl]-1H-pyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/75047.gif)
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![5-[3-(cyclopropylamino)propyl]-1H-pyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/75027.gif)
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![6-(azepan-1-yl)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/247492.gif)
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![6-(cyclohexylamino)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/247481.gif)
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![6-(cyclopentylmethylamino)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/247130.gif)
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![6-(piperidinomethyl)-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/25117.gif)
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