![1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazin-2-yl(cyclopropyl)methanone](http://zinc12.docking.org/img/rings/581176.gif)
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![3-phenyl-2,3,4,6,7,8,9,9a-octahydro-1H-pyrido[1,2-a]pyrazine](http://zinc12.docking.org/img/rings/138421.gif)
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![1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazin-2-yl(furazan-3-yl)methanone](http://zinc12.docking.org/img/rings/124840.gif)
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![1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazin-2-yl(1H-pyrazol-3-yl)methanone](http://zinc12.docking.org/img/rings/278390.gif)
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![1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazin-2-yl(1H-pyrazol-4-yl)methanone](http://zinc12.docking.org/img/rings/583145.gif)
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![1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazin-2-yl(thiazol-4-yl)methanone](http://zinc12.docking.org/img/rings/266608.gif)
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![1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazin-2-yl(pyrrolidin-3-yl)methanone](http://zinc12.docking.org/img/rings/302419.gif)
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![3-benzyl-2,3,4,6,7,8,9,9a-octahydro-1H-pyrido[1,2-a]pyrazine](http://zinc12.docking.org/img/rings/151058.gif)
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![2-(1H-pyrazol-3-ylsulfonyl)-1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazine](http://zinc12.docking.org/img/rings/582043.gif)
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![2-(1H-pyrazol-4-ylsulfonyl)-1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazine](http://zinc12.docking.org/img/rings/582618.gif)
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![2-(1H-pyrrol-3-ylsulfonyl)-1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazine](http://zinc12.docking.org/img/rings/582038.gif)
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![2-(2-furylsulfonyl)-1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazine](http://zinc12.docking.org/img/rings/582037.gif)
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![2-(2-thienylsulfonyl)-1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazine](http://zinc12.docking.org/img/rings/582040.gif)
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![2-(3-thienylsulfonyl)-1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazine](http://zinc12.docking.org/img/rings/582042.gif)
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![N-(2-thienyl)-1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazine-2-carboxamide](http://zinc12.docking.org/img/rings/283924.gif)
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![1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazin-2-yl(3-piperidyl)methanone](http://zinc12.docking.org/img/rings/292325.gif)
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![1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazin-2-yl(4-piperidyl)methanone](http://zinc12.docking.org/img/rings/287322.gif)
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![1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazin-2-yl(cyclohex-3-en-1-yl)methanone](http://zinc12.docking.org/img/rings/581177.gif)
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![1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazin-2-yl(cyclohexyl)methanone](http://zinc12.docking.org/img/rings/581179.gif)
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![1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazin-2-yl(phenyl)methanone](http://zinc12.docking.org/img/rings/280974.gif)
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![1-(1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazin-2-yl)-2-cyclopentyl-ethanone](http://zinc12.docking.org/img/rings/581181.gif)
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![2-(3-pyridylsulfonyl)-1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazine](http://zinc12.docking.org/img/rings/533168.gif)
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![3-(1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazine-2-carbonyl)-4,5-dihydro-1H-pyridazin-6-one](http://zinc12.docking.org/img/rings/583151.gif)
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![2-besyl-1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazine](http://zinc12.docking.org/img/rings/510448.gif)
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![5-(1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazine-2-carbonyl)-2-pyridone](http://zinc12.docking.org/img/rings/583148.gif)
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![1-(1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazin-2-yl)-2-phenyl-ethanone](http://zinc12.docking.org/img/rings/30514.gif)
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![5-(1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazin-2-ylsulfonyl)-2-pyridone](http://zinc12.docking.org/img/rings/582619.gif)
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![4-(1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazin-2-yl)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine](http://zinc12.docking.org/img/rings/425552.gif)
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![2-(1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazin-2-yl)quinazoline](http://zinc12.docking.org/img/rings/558991.gif)
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![1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazin-2-yl(pyrazolo[1,5-a]pyrimidin-3-yl)methanone](http://zinc12.docking.org/img/rings/598745.gif)
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![1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazin-2-yl(1H-benzimidazol-5-yl)methanone](http://zinc12.docking.org/img/rings/583150.gif)
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![1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazin-2-yl(1H-indol-2-yl)methanone](http://zinc12.docking.org/img/rings/583153.gif)
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![1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazin-2-yl(1H-indol-3-yl)methanone](http://zinc12.docking.org/img/rings/583146.gif)
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![1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazin-2-yl(1H-indol-4-yl)methanone](http://zinc12.docking.org/img/rings/583156.gif)
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![1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazin-2-yl(5,6,7,8-tetrahydro-4H-pyrazolo[1,5-a][1,4]diazepin-2-yl)methanone](http://zinc12.docking.org/img/rings/400344.gif)
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![1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazin-2-yl(2,3-dihydro-1,4-benzodioxin-6-yl)methanone](http://zinc12.docking.org/img/rings/472096.gif)
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![3-(1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazine-2-carbonyl)-1-phenyl-2-pyrrolidone](http://zinc12.docking.org/img/rings/398282.gif)
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![1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazin-2-yl-[2-(1,3-benzodioxol-5-yloxymethyl)oxazol-4-yl]methanone](http://zinc12.docking.org/img/rings/594468.gif)
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![2-benzyl-3,8-diphenyl-1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazine](http://zinc12.docking.org/img/rings/197218.gif)
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![8-(3-benzoxyphenyl)-2-phenyl-1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazine](http://zinc12.docking.org/img/rings/197222.gif)
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