![5-(1H-pyrazol-4-yl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349444.gif)
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![5-thiazol-4-yl-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349221.gif)
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![5-thiazol-5-yl-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349480.gif)
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![5-(2-furyl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/182224.gif)
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![5-(2-thienyl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349232.gif)
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![5-(3-furyl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349600.gif)
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![5-(3-thienyl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349732.gif)
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![5-(2-pyridyl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349587.gif)
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![5-cyclohexyl-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349502.gif)
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![5-phenyl-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/185456.gif)
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![5-[2-(2-furyl)vinyl]-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349323.gif)
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![5-styryl-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349945.gif)
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![5-(1,3-benzodioxol-4-yl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349894.gif)
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![5-(1,3-benzodioxol-5-yl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349452.gif)
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![5-thieno[2,3-b]pyridin-5-yl-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349682.gif)
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![5-(benzofuran-2-yl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349272.gif)
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![5-(benzofuran-3-yl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349719.gif)
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![5-(benzothiophen-2-yl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349917.gif)
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![5-(benzothiophen-3-yl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349951.gif)
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![5-coumaran-5-yl-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349225.gif)
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![5-coumaran-6-yl-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349787.gif)
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![5-(2,3-dihydro-1,4-benzodioxin-5-yl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349691.gif)
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![5-(2,3-dihydro-1,4-benzodioxin-6-yl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349441.gif)
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![5-(1,2,3,4-tetrahydroquinolin-6-yl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349542.gif)
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![5-(2H-chromen-3-yl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349758.gif)
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![5-(3-quinolyl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/350058.gif)
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![5-(6-quinolyl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/350044.gif)
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![5-(1-naphthyl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349347.gif)
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![5-(2-naphthyl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349843.gif)
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![5-(3,4-dihydro-2H-1,5-benzodioxepin-6-yl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/350060.gif)
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![5-(3,4-dihydro-2H-1,5-benzodioxepin-7-yl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349536.gif)
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![5-(2-cyclopropylthiazol-4-yl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349314.gif)
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![5-(5-cyclopropyl-2-furyl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349264.gif)
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![5-[2-(2-furyl)thiazol-4-yl]-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349813.gif)
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![5-[2-(2-thienyl)thiazol-4-yl]-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349619.gif)
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![5-[2-(3-thienyl)thiazol-4-yl]-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349937.gif)
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![5-[3-(2-furyl)-1H-pyrazol-4-yl]-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349749.gif)
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![5-[3-(3-pyridyl)-1H-pyrazol-4-yl]-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349276.gif)
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![5-[4-(1,2,4-triazol-1-yl)phenyl]-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349752.gif)
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![5-(1-phenylpyrazol-4-yl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349224.gif)
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![5-(2-phenylthiazol-4-yl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349803.gif)
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![5-(2-phenylthiazol-5-yl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349554.gif)
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![5-(3-phenyl-1H-pyrazol-4-yl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349770.gif)
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![5-(4-phenylthiazol-2-yl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349764.gif)
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![5-(4-pyrazol-1-ylphenyl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349747.gif)
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![5-(4-phenyl-2-thienyl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349236.gif)
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![5-(5-phenyl-2-furyl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349246.gif)
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![5-(5-phenyl-2-thienyl)-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349457.gif)
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![5-[2-(cyclopropylmethoxy)phenyl]-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349484.gif)
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![5-[3-(2-thienyl)phenyl]-2,4,5,6-tetrahydropyrazolo[4,3-d]pyrimidin-7-one](http://zinc12.docking.org/img/rings/349935.gif)
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