![6-(2-furfuryl)-3,6-diazaspiro[4.4]nonan-4-one](http://zinc12.docking.org/img/rings/603926.gif)
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![2-(6-keto-4,7-diazaspiro[4.4]nonan-4-yl)-N-(1H-pyrazol-5-yl)acetamide](http://zinc12.docking.org/img/rings/603909.gif)
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![2-(6-keto-4,7-diazaspiro[4.4]nonan-4-yl)-N-phenyl-acetamide](http://zinc12.docking.org/img/rings/603894.gif)
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![6-piperonyl-3,6-diazaspiro[4.4]nonan-4-one](http://zinc12.docking.org/img/rings/603924.gif)
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![N-(1,3-benzodioxol-5-yl)-2-(6-keto-4,7-diazaspiro[4.4]nonan-4-yl)acetamide](http://zinc12.docking.org/img/rings/603899.gif)
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![N-indan-5-yl-2-(6-keto-4,7-diazaspiro[4.4]nonan-4-yl)acetamide](http://zinc12.docking.org/img/rings/603896.gif)
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![2-(6-keto-4,7-diazaspiro[4.4]nonan-4-yl)-N-tetralin-5-yl-acetamide](http://zinc12.docking.org/img/rings/603886.gif)
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![6-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]-3,6-diazaspiro[4.4]nonan-4-one](http://zinc12.docking.org/img/rings/603912.gif)
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![6-[(5-phenyl-1,3,4-oxadiazol-2-yl)methyl]-3,6-diazaspiro[4.4]nonan-4-one](http://zinc12.docking.org/img/rings/603917.gif)
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![6-[(2-anilinothiazol-4-yl)methyl]-3,6-diazaspiro[4.4]nonan-4-one](http://zinc12.docking.org/img/rings/603921.gif)
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![6-(4-phenylbenzyl)-3,6-diazaspiro[4.4]nonan-4-one](http://zinc12.docking.org/img/rings/603904.gif)
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![6-(3-phenoxybenzyl)-3,6-diazaspiro[4.4]nonan-4-one](http://zinc12.docking.org/img/rings/603906.gif)
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![2-(6-keto-4,7-diazaspiro[4.4]nonan-4-yl)-N-(3-phenyl-1H-pyrazol-5-yl)acetamide](http://zinc12.docking.org/img/rings/603941.gif)
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![2-(6-keto-4,7-diazaspiro[4.4]nonan-4-yl)-N-(4-phenylthiazol-2-yl)acetamide](http://zinc12.docking.org/img/rings/603920.gif)
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![2-(6-keto-4,7-diazaspiro[4.4]nonan-4-yl)-N-(2-pyrrol-1-ylphenyl)acetamide](http://zinc12.docking.org/img/rings/603931.gif)
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![2-[6-(2-furfuryl)-4-keto-3,6-diazaspiro[4.4]nonan-3-yl]-N-phenyl-acetamide](http://zinc12.docking.org/img/rings/603928.gif)
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![2-(6-keto-4,7-diazaspiro[4.4]nonan-4-yl)-N-(4-phenoxyphenyl)acetamide](http://zinc12.docking.org/img/rings/603902.gif)
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![2-(6-keto-4,7-diazaspiro[4.4]nonan-4-yl)-N-[2-(phenylthio)phenyl]acetamide](http://zinc12.docking.org/img/rings/603900.gif)
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![2-[4-keto-6-[2-keto-2-(1H-pyrazol-5-ylamino)ethyl]-3,6-diazaspiro[4.4]nonan-3-yl]-N-phenyl-acetamide](http://zinc12.docking.org/img/rings/603910.gif)
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![2-[6-(2-anilino-2-keto-ethyl)-4-keto-3,6-diazaspiro[4.4]nonan-3-yl]-N-(pyrrolidin-2-ylmethyl)acetamide](http://zinc12.docking.org/img/rings/603891.gif)
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![2-[7-(2-anilino-2-keto-ethyl)-6-keto-4,7-diazaspiro[4.4]nonan-4-yl]-N-(2-thenyl)acetamide](http://zinc12.docking.org/img/rings/603944.gif)
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![2-[6-(2-anilino-2-keto-ethyl)-4-keto-3,6-diazaspiro[4.4]nonan-3-yl]-N-phenyl-acetamide](http://zinc12.docking.org/img/rings/603892.gif)
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![N-dibenzofuran-3-yl-2-(6-keto-4,7-diazaspiro[4.4]nonan-4-yl)acetamide](http://zinc12.docking.org/img/rings/603889.gif)
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![2-[6-[2-(indan-5-ylamino)-2-keto-ethyl]-4-keto-3,6-diazaspiro[4.4]nonan-3-yl]-N-(pyrrolidin-2-ylmethyl)acetamide](http://zinc12.docking.org/img/rings/603897.gif)
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![2-[4-keto-6-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]-3,6-diazaspiro[4.4]nonan-3-yl]-N-(pyrrolidin-2-ylmethyl)acetamide](http://zinc12.docking.org/img/rings/603952.gif)
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![2-[4-keto-6-[4-(thiadiazol-4-yl)benzyl]-3,6-diazaspiro[4.4]nonan-3-yl]-N-(pyrrolidin-2-ylmethyl)acetamide](http://zinc12.docking.org/img/rings/603934.gif)
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![2-[4-keto-6-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]-3,6-diazaspiro[4.4]nonan-3-yl]-N-phenyl-acetamide](http://zinc12.docking.org/img/rings/603953.gif)
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![2-[4-keto-6-(2-phenylbenzyl)-3,6-diazaspiro[4.4]nonan-3-yl]-N-(pyrrolidin-2-ylmethyl)acetamide](http://zinc12.docking.org/img/rings/603948.gif)
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