![7-pyrrolidino-2H-[1,2,4]triazolo[4,3-a]pyrimidin-3-one](http://zinc12.docking.org/img/rings/503110.gif)
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![7-morpholino-2H-[1,2,4]triazolo[4,3-a]pyrimidin-3-one](http://zinc12.docking.org/img/rings/503105.gif)
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![7-thiomorpholino-2H-[1,2,4]triazolo[4,3-a]pyrimidin-3-one](http://zinc12.docking.org/img/rings/503104.gif)
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![7-piperidino-2H-[1,2,4]triazolo[4,3-a]pyrimidin-3-one](http://zinc12.docking.org/img/rings/503107.gif)
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![7-anilino-2H-[1,2,4]triazolo[4,3-a]pyrimidin-3-one](http://zinc12.docking.org/img/rings/368220.gif)
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![7-(4-phenylpiperazino)-2H-[1,2,4]triazolo[4,3-a]pyrimidin-3-one](http://zinc12.docking.org/img/rings/503109.gif)
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![7-anilino-2-(2-ketotetrahydrofuran-3-yl)-[1,2,4]triazolo[4,3-a]pyrimidin-3-one](http://zinc12.docking.org/img/rings/383221.gif)
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![7-anilino-2-(tetrahydrofurfuryl)-[1,2,4]triazolo[4,3-a]pyrimidin-3-one](http://zinc12.docking.org/img/rings/383218.gif)
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![7-anilino-2-(2-pyridylmethyl)-[1,2,4]triazolo[4,3-a]pyrimidin-3-one](http://zinc12.docking.org/img/rings/383237.gif)
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![7-anilino-2-(3-pyridylmethyl)-[1,2,4]triazolo[4,3-a]pyrimidin-3-one](http://zinc12.docking.org/img/rings/383231.gif)
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![7-anilino-2-(4-pyridylmethyl)-[1,2,4]triazolo[4,3-a]pyrimidin-3-one](http://zinc12.docking.org/img/rings/383224.gif)
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![7-anilino-2-benzyl-[1,2,4]triazolo[4,3-a]pyrimidin-3-one](http://zinc12.docking.org/img/rings/383213.gif)
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![7-anilino-2-(2-keto-2-pyrrolidino-ethyl)-[1,2,4]triazolo[4,3-a]pyrimidin-3-one](http://zinc12.docking.org/img/rings/564890.gif)
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![7-anilino-2-phenethyl-[1,2,4]triazolo[4,3-a]pyrimidin-3-one](http://zinc12.docking.org/img/rings/564896.gif)
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![2-(3-keto-7-morpholino-[1,2,4]triazolo[4,3-a]pyrimidin-2-yl)-N-phenyl-acetamide](http://zinc12.docking.org/img/rings/564859.gif)
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![7-anilino-2-(2-keto-2-morpholino-ethyl)-[1,2,4]triazolo[4,3-a]pyrimidin-3-one](http://zinc12.docking.org/img/rings/564893.gif)
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![2-(3-keto-7-piperidino-[1,2,4]triazolo[4,3-a]pyrimidin-2-yl)-N-phenyl-acetamide](http://zinc12.docking.org/img/rings/564867.gif)
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![7-anilino-2-(2-phenoxyethyl)-[1,2,4]triazolo[4,3-a]pyrimidin-3-one](http://zinc12.docking.org/img/rings/383211.gif)
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![2-(7-anilino-3-keto-[1,2,4]triazolo[4,3-a]pyrimidin-2-yl)-N-(tetrahydrofurfuryl)acetamide](http://zinc12.docking.org/img/rings/564885.gif)
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![2-(7-anilino-3-keto-[1,2,4]triazolo[4,3-a]pyrimidin-2-yl)-N-phenyl-acetamide](http://zinc12.docking.org/img/rings/564877.gif)
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![2-[7-(azepan-1-yl)-3-keto-[1,2,4]triazolo[4,3-a]pyrimidin-2-yl]-N-phenyl-acetamide](http://zinc12.docking.org/img/rings/564870.gif)
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![2-(7-anilino-3-keto-[1,2,4]triazolo[4,3-a]pyrimidin-2-yl)-N-benzyl-acetamide](http://zinc12.docking.org/img/rings/564884.gif)
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![7-(3,4-dihydro-1H-isoquinolin-2-yl)-2-phenethyl-[1,2,4]triazolo[4,3-a]pyrimidin-3-one](http://zinc12.docking.org/img/rings/383239.gif)
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![2-[(7-anilino-3-keto-[1,2,4]triazolo[4,3-a]pyrimidin-2-yl)methyl]pyrido[1,2-a]pyrimidin-4-one](http://zinc12.docking.org/img/rings/383225.gif)
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![7-anilino-2-[2-(3,4-dihydro-2H-quinolin-1-yl)-2-keto-ethyl]-[1,2,4]triazolo[4,3-a]pyrimidin-3-one](http://zinc12.docking.org/img/rings/564889.gif)
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