![2-(4H-1,2,4-triazol-3-ylsulfonylmethyl)pyrido[1,2-a]pyrimidin-4-one](http://zinc12.docking.org/img/rings/489469.gif)
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![4-keto-N-(thiazol-4-ylmethyl)pyrido[1,2-a]pyrimidine-3-carboxamide](http://zinc12.docking.org/img/rings/399210.gif)
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![N'-(cyclopropanecarbonyl)-4-keto-pyrido[1,2-a]pyrimidine-3-carbohydrazide](http://zinc12.docking.org/img/rings/402122.gif)
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![N-(isoxazol-3-ylmethyl)-4-keto-pyrido[1,2-a]pyrimidine-3-carboxamide](http://zinc12.docking.org/img/rings/536288.gif)
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![Thiazole-5-carboxylic Acid (4-ketopyrido[1,2-a]pyrimidin-2-yl)methyl Ester](http://zinc12.docking.org/img/rings/608826.gif)
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![2-[(2-pyrazol-1-ylethylamino)methyl]pyrido[1,2-a]pyrimidin-4-one](http://zinc12.docking.org/img/rings/432104.gif)
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![2-[(pyrazin-2-ylmethylamino)methyl]pyrido[1,2-a]pyrimidin-4-one](http://zinc12.docking.org/img/rings/210271.gif)
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![3-[(2-thiazol-5-ylethylamino)methyl]pyrido[1,2-a]pyrimidin-4-one](http://zinc12.docking.org/img/rings/579196.gif)
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![3H-pyrrole-5-carboxylic Acid (4-ketopyrido[1,2-a]pyrimidin-2-yl)methyl Ester](http://zinc12.docking.org/img/rings/348734.gif)
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![4-keto-N-(2-thenyl)pyrido[1,2-a]pyrimidine-3-carboxamide](http://zinc12.docking.org/img/rings/402543.gif)
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![4-keto-N-(3-pyridyl)pyrido[1,2-a]pyrimidine-3-carboxamide](http://zinc12.docking.org/img/rings/397547.gif)
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![4-keto-N-(4-piperidyl)pyrido[1,2-a]pyrimidine-3-carboxamide](http://zinc12.docking.org/img/rings/407498.gif)
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![4-keto-N-(4-pyridyl)pyrido[1,2-a]pyrimidine-3-carboxamide](http://zinc12.docking.org/img/rings/407546.gif)
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![4-keto-N-(tetrahydrofurfuryl)pyrido[1,2-a]pyrimidine-3-carboxamide](http://zinc12.docking.org/img/rings/400426.gif)
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![N-(2-furfuryl)-4-keto-pyrido[1,2-a]pyrimidine-3-carboxamide](http://zinc12.docking.org/img/rings/303851.gif)
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![Thiophene-3-carboxylic Acid (4-ketopyrido[1,2-a]pyrimidin-2-yl)methyl Ester](http://zinc12.docking.org/img/rings/44400.gif)
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![2-(2-piperidinoethylamino)pyrido[1,2-a]pyrimidin-4-one](http://zinc12.docking.org/img/rings/377628.gif)
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![2-[3-(2-furyl)propylamino]pyrido[1,2-a]pyrimidin-4-one](http://zinc12.docking.org/img/rings/579849.gif)
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![2-(phenethylamino)pyrido[1,2-a]pyrimidin-4-one](http://zinc12.docking.org/img/rings/85986.gif)
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![2-(thiazol-5-ylmethylsulfonylmethyl)pyrido[1,2-a]pyrimidin-4-one](http://zinc12.docking.org/img/rings/317134.gif)
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