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![2-(1,3,4-thiadiazol-2-ylmethylthio)-3H-thieno[3,2-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/204205.gif)
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![N-cyclopropyl-2-(4-ketothieno[3,2-d]pyrimidin-3-yl)acetamide](http://zinc12.docking.org/img/rings/105423.gif)
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![2-(2-pyridylmethyl)-3H-thieno[3,2-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/152190.gif)
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![2-[(cyclopentylamino)methyl]-3H-thieno[3,2-d]pyrimidin-4-one](http://zinc12.docking.org/img/rings/34005.gif)
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