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![2-(cyclobutanecarbonylamino)acetic Acid (4-ketopyrido[1,2-a]pyrimidin-2-yl)methyl Ester](http://zinc12.docking.org/img/rings/480169.gif)
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![2-(tetrahydrofurfuryloxy)acetic Acid (4-ketopyrido[1,2-a]pyrimidin-2-yl)methyl Ester](http://zinc12.docking.org/img/rings/445160.gif)
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![2-phenoxyacetic Acid (4-ketopyrido[1,2-a]pyrimidin-2-yl)methyl Ester](http://zinc12.docking.org/img/rings/94683.gif)
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![3-(2-pyridyl)propionic Acid (4-ketopyrido[1,2-a]pyrimidin-2-yl)methyl Ester](http://zinc12.docking.org/img/rings/297713.gif)
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![N-benzyl-2-[(4-ketopyrido[1,2-a]pyrimidin-2-yl)amino]acetamide](http://zinc12.docking.org/img/rings/377551.gif)
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![N-[2-[(4-ketopyrido[1,2-a]pyrimidin-2-yl)amino]ethyl]benzamide](http://zinc12.docking.org/img/rings/156623.gif)
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![3-phenylpropionic Acid (4-ketopyrido[1,2-a]pyrimidin-2-yl)methyl Ester](http://zinc12.docking.org/img/rings/134658.gif)
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![4-keto-N-(3-phenylpropyl)pyrido[1,2-a]pyrimidine-3-carboxamide](http://zinc12.docking.org/img/rings/397568.gif)
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![4-ketopyrido[1,2-a]pyrimidine-3-carboxylic Acid Cinnamyl Ester](http://zinc12.docking.org/img/rings/455287.gif)
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![2-[(4-ketopyrido[1,2-a]pyrimidin-2-yl)amino]-N-phenethyl-acetamide](http://zinc12.docking.org/img/rings/189475.gif)
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![N-(cyclohexylmethyl)-2-[(4-ketopyrido[1,2-a]pyrimidin-2-yl)methylthio]acetamide](http://zinc12.docking.org/img/rings/586616.gif)
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![2-(3-phenethyloxypropylamino)pyrido[1,2-a]pyrimidin-4-one](http://zinc12.docking.org/img/rings/244042.gif)
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![2-[3-(2-pyrimidylamino)propylsulfonylmethyl]pyrido[1,2-a]pyrimidin-4-one](http://zinc12.docking.org/img/rings/364410.gif)
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![4-keto-4-(thiazol-2-ylamino)butyric Acid (4-ketopyrido[1,2-a]pyrimidin-2-yl)methyl Ester](http://zinc12.docking.org/img/rings/569893.gif)
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