![8-imidazol-1-yl-3,5,9-trioxa-4$l^{5}-phosphabicyclo[4.3.0]nonane 4-oxide](http://zinc12.docking.org/img/rings/4449.gif)
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![[3-(3-keto-2,4,7-trioxa-3$l^{5}-phosphabicyclo[4.3.0]nonan-8-yl)-2-imidazolin-4-ylidene]amine](http://zinc12.docking.org/img/rings/446729.gif)
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![1-(4-keto-3,5,9-trioxa-4$l^{5}-phosphabicyclo[4.3.0]nonan-8-yl)pyrimidin-2-one](http://zinc12.docking.org/img/rings/504656.gif)
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![1-(4-keto-3,5,9-trioxa-4$l^{5}-phosphabicyclo[4.3.0]nonan-8-yl)pyrimidine-2,4-quinone](http://zinc12.docking.org/img/rings/592670.gif)
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![8-purin-9-yl-3,5,9-trioxa-4$l^{5}-phosphabicyclo[4.3.0]nonane 4-oxide](http://zinc12.docking.org/img/rings/479651.gif)
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![9-(4-keto-3,5,9-trioxa-4$l^{5}-phosphabicyclo[4.3.0]nonan-8-yl)-1H-purin-2-one](http://zinc12.docking.org/img/rings/189897.gif)
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![9-(4-keto-3,5,9-trioxa-4$l^{5}-phosphabicyclo[4.3.0]nonan-8-yl)-7H-purin-8-one](http://zinc12.docking.org/img/rings/592663.gif)
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![9-(4-keto-3,5,9-trioxa-4$l^{5}-phosphabicyclo[4.3.0]nonan-8-yl)hypoxanthine](http://zinc12.docking.org/img/rings/101504.gif)
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![8-BLAHyl-3,5,9-trioxa-4$l^{5}-phosphabicyclo[4.3.0]nonane 4-oxide](http://zinc12.docking.org/img/rings/592653.gif)
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![8-[6-(azetidin-1-yl)purin-9-yl]-3,5,9-trioxa-4$l^{5}-phosphabicyclo[4.3.0]nonane 4-oxide](http://zinc12.docking.org/img/rings/482403.gif)
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![Benzoic Acid (3-keto-8-purin-9-yl-2,4,7-trioxa-3$l^{5}-phosphabicyclo[4.3.0]nonan-9-yl) Ester](http://zinc12.docking.org/img/rings/592666.gif)
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![4-benzoylbenzoic Acid [3-keto-8-(6-keto-1H-purin-9-yl)-2,4,7-trioxa-3$l^{5}-phosphabicyclo[4.3.0]nonan-9-yl] Ester](http://zinc12.docking.org/img/rings/190571.gif)
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