![3-(1H-pyrazol-4-yl)-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/583736.gif)
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![3-(isoxazol-4-ylmethyl)-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/28266.gif)
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![3-(thiazol-4-ylmethyl)-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/580948.gif)
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![3-(thiazol-5-ylmethyl)-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/580934.gif)
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![3-(2-furfuryl)-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/28284.gif)
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![3-(2-thenyl)-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/580179.gif)
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![3-(3-thenyl)-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/212082.gif)
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![3-(4-piperidyl)-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/28287.gif)
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![3-(cyclopentylmethyl)-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/534083.gif)
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![3-cyclohexyl-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/524866.gif)
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![3-phenyl-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/91806.gif)
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![5-phenyl-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/42299.gif)
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![3-(2-imidazol-1-ylethyl)-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/544867.gif)
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![3-(pyrazin-2-ylmethyl)-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/210386.gif)
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![3-(2-pyrrolidinoethyl)-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/28276.gif)
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![3-(cyclohexylmethyl)-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/221726.gif)
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![3-benzyl-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/28257.gif)
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![3-(1,1-diketothian-3-yl)-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/290480.gif)
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![3-(1,1-diketothian-4-yl)-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/90024.gif)
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![3-(2-keto-2-pyrrolidino-ethyl)-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/28240.gif)
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![3-(2-morpholinoethyl)-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/572449.gif)
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![3-[(4-keto-1H-pyridin-2-yl)methyl]-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/28285.gif)
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![3-[2-keto-2-(2-thienyl)ethyl]-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/28268.gif)
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![3-(2-piperidinoethyl)-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/28280.gif)
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![3-[2-(3-pyridyl)ethyl]-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/573460.gif)
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![3-[3-(2-furyl)propyl]-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/589574.gif)
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![2-(4-keto-2-thioxo-1H-thieno[2,3-d]pyrimidin-3-yl)-N-(1,3,4-thiadiazol-2-yl)acetamide](http://zinc12.docking.org/img/rings/28269.gif)
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![2-(4-keto-2-thioxo-1H-thieno[2,3-d]pyrimidin-3-yl)-N-thiazol-2-yl-acetamide](http://zinc12.docking.org/img/rings/28247.gif)
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![2-(4-keto-2-thioxo-1H-thieno[2,3-d]pyrimidin-3-yl)-N-(2-thienyl)acetamide](http://zinc12.docking.org/img/rings/28234.gif)
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![3-(2-keto-2-morpholino-ethyl)-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/28237.gif)
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![2-(4-keto-2-thioxo-1H-thieno[2,3-d]pyrimidin-3-yl)acetic Acid Cyclopentyl Ester](http://zinc12.docking.org/img/rings/28256.gif)
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![3-(2-keto-2-piperidino-ethyl)-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/28236.gif)
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![N-cyclopentyl-2-(4-keto-2-thioxo-1H-thieno[2,3-d]pyrimidin-3-yl)acetamide](http://zinc12.docking.org/img/rings/28250.gif)
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![3-(2-phenoxyethyl)-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/28260.gif)
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![3-phenacyl-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/28259.gif)
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![3-(3-phenylpropyl)-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/28286.gif)
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![2-(4-keto-2-thioxo-1H-thieno[2,3-d]pyrimidin-3-yl)-N-(2-pyridyl)acetamide](http://zinc12.docking.org/img/rings/28283.gif)
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![2-(4-keto-2-thioxo-1H-thieno[2,3-d]pyrimidin-3-yl)-N-(tetrahydrofurfuryl)acetamide](http://zinc12.docking.org/img/rings/28244.gif)
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![N-(2-furfuryl)-2-(4-keto-2-thioxo-1H-thieno[2,3-d]pyrimidin-3-yl)acetamide](http://zinc12.docking.org/img/rings/28232.gif)
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![2-(4-keto-2-thioxo-1H-thieno[2,3-d]pyrimidin-3-yl)-N-phenyl-acetamide](http://zinc12.docking.org/img/rings/28217.gif)
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![2-(4-keto-2-thioxo-1H-thieno[2,3-d]pyrimidin-3-yl)acetic Acid Cyclohexyl Ester](http://zinc12.docking.org/img/rings/28251.gif)
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![3-[2-(azepan-1-yl)-2-keto-ethyl]-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/28243.gif)
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![N-cyclohexyl-2-(4-keto-2-thioxo-1H-thieno[2,3-d]pyrimidin-3-yl)acetamide](http://zinc12.docking.org/img/rings/28239.gif)
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![3-(3-phenoxypropyl)-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/28262.gif)
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![2-(4-keto-2-thioxo-1H-thieno[2,3-d]pyrimidin-3-yl)acetic Acid Benzyl Ester](http://zinc12.docking.org/img/rings/28252.gif)
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![N-benzyl-2-(4-keto-2-thioxo-1H-thieno[2,3-d]pyrimidin-3-yl)acetamide](http://zinc12.docking.org/img/rings/28233.gif)
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![3-(4-phenoxybutyl)-2-thioxo-1H-thieno[2,3-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/28263.gif)
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![N-[2-(4-keto-2-thioxo-1H-thieno[2,3-d]pyrimidin-3-yl)ethylidene]benzenesulfonamide](http://zinc12.docking.org/img/rings/28246.gif)
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