![7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxylic Acid [2-(2-pyridyl)thiazol-4-yl]methyl Ester](http://zinc12.docking.org/img/rings/480500.gif)
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![7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxylic Acid [4-(1,2,4-triazol-1-yl)benzyl] Ester](http://zinc12.docking.org/img/rings/277990.gif)
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![7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxylic Acid [4-(2-ketooxazolidin-3-yl)phenyl] Ester](http://zinc12.docking.org/img/rings/277346.gif)
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![4-[3-(morpholinomethyl)piperidine-1-carbonyl]-6H-isoxazolo[3,4-d]pyridazin-7-one](http://zinc12.docking.org/img/rings/416016.gif)
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![4-[4-(2-pyrrolidinoethyl)piperazine-1-carbonyl]-6H-isoxazolo[3,4-d]pyridazin-7-one](http://zinc12.docking.org/img/rings/478858.gif)
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![4-[4-(piperazinomethyl)piperidine-1-carbonyl]-6H-isoxazolo[3,4-d]pyridazin-7-one](http://zinc12.docking.org/img/rings/479269.gif)
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![7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxylic Acid (2-phenyloxazol-4-yl)methyl Ester](http://zinc12.docking.org/img/rings/480490.gif)
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![7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxylic Acid (2-phenylthiazol-5-yl)methyl Ester](http://zinc12.docking.org/img/rings/480506.gif)
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![7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxylic Acid (5-phenyloxazol-2-yl)methyl Ester](http://zinc12.docking.org/img/rings/480492.gif)
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![7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxylic Acid [2-(cyclopropanecarbonylamino)phenyl] Ester](http://zinc12.docking.org/img/rings/277175.gif)
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![N-[4-(imidazol-1-ylmethyl)phenyl]-7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxamide](http://zinc12.docking.org/img/rings/304782.gif)
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![N-[[2-(cyclopropylmethoxy)-4-pyridyl]methyl]-7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxamide](http://zinc12.docking.org/img/rings/517959.gif)
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![6-[[[phenyl(2-pyrimidyl)methyl]amino]methyl]isoxazolo[3,4-d]pyridazin-7-one](http://zinc12.docking.org/img/rings/370181.gif)
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![7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxylic Acid [2-furyl(phenyl)methyl] Ester](http://zinc12.docking.org/img/rings/277817.gif)
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![7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxylic Acid [phenyl(2-thienyl)methyl] Ester](http://zinc12.docking.org/img/rings/277968.gif)
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![4-(3-benzylpiperidine-1-carbonyl)-6H-isoxazolo[3,4-d]pyridazin-7-one](http://zinc12.docking.org/img/rings/349479.gif)
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![7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxylic Acid (2-phenylphenyl) Ester](http://zinc12.docking.org/img/rings/277118.gif)
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![6-[(cyclohexylmethylamino)methyl]-4-phenyl-isoxazolo[3,4-d]pyridazin-7-one](http://zinc12.docking.org/img/rings/461567.gif)
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![6-[(4-besylpiperazino)methyl]isoxazolo[3,4-d]pyridazin-7-one](http://zinc12.docking.org/img/rings/144260.gif)
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![2-cyclopentyl-N-[1-[(7-ketoisoxazolo[3,4-d]pyridazin-6-yl)methyl]-4-piperidyl]acetamide](http://zinc12.docking.org/img/rings/370022.gif)
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![7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxylic Acid (3-phenoxyphenyl) Ester](http://zinc12.docking.org/img/rings/276998.gif)
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![7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxylic Acid [4-(4-ketocyclohexyl)phenyl] Ester](http://zinc12.docking.org/img/rings/277115.gif)
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![7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxylic Acid [phenyl(4-pyridyl)methyl] Ester](http://zinc12.docking.org/img/rings/277808.gif)
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![7-keto-N-(2-phenoxyphenyl)-6H-isoxazolo[3,4-d]pyridazine-4-carboxamide](http://zinc12.docking.org/img/rings/620083.gif)
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![2-(7-keto-4-phenyl-isoxazolo[3,4-d]pyridazin-6-yl)-N-phenyl-acetamide](http://zinc12.docking.org/img/rings/180730.gif)
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![7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxylic Acid (2-phenylbenzyl) Ester](http://zinc12.docking.org/img/rings/277939.gif)
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![7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxylic Acid Benzhydryl Ester](http://zinc12.docking.org/img/rings/277438.gif)
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![7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxylic Acid 3-(5-phenyltetrazol-2-yl)propyl Ester](http://zinc12.docking.org/img/rings/347067.gif)
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![6-[3-[4-(2-furoyl)piperazino]-3-keto-propyl]isoxazolo[3,4-d]pyridazin-7-one](http://zinc12.docking.org/img/rings/88431.gif)
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![7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxylic Acid [4-(2-furoylamino)phenyl] Ester](http://zinc12.docking.org/img/rings/277209.gif)
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![6-[4-keto-4-[4-(2-pyridyl)piperazino]butyl]isoxazolo[3,4-d]pyridazin-7-one](http://zinc12.docking.org/img/rings/391866.gif)
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![7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxylic Acid [4-(3-pyridylmethoxy)phenyl] Ester](http://zinc12.docking.org/img/rings/277349.gif)
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![7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxylic Acid [4-(4-pyridylmethoxy)phenyl] Ester](http://zinc12.docking.org/img/rings/276946.gif)
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![7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxylic Acid (1-benzyl-4-piperidyl)methyl Ester](http://zinc12.docking.org/img/rings/277726.gif)
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![3-(7-keto-4-phenyl-isoxazolo[3,4-d]pyridazin-6-yl)-N-phenyl-propionamide](http://zinc12.docking.org/img/rings/174878.gif)
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![7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxylic Acid (1-cyclohexyl-2-phenyl-ethyl) Ester](http://zinc12.docking.org/img/rings/278239.gif)
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![7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxylic Acid 1,2-diphenylethyl Ester](http://zinc12.docking.org/img/rings/277794.gif)
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![7-keto-N-[(1-phenylcycloheptyl)methyl]-6H-isoxazolo[3,4-d]pyridazine-4-carboxamide](http://zinc12.docking.org/img/rings/327459.gif)
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![4-(7-ketoisoxazolo[3,4-d]pyridazin-6-yl)-N-[3-(4-phenylpiperazino)propyl]butyramide](http://zinc12.docking.org/img/rings/391868.gif)
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![7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxylic Acid 4-bicyclo[3.1.1]hept-3-enylmethyl Ester](http://zinc12.docking.org/img/rings/277662.gif)
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![7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxylic Acid 2-(4-bicyclo[3.1.1]hept-3-enyl)ethyl Ester](http://zinc12.docking.org/img/rings/575705.gif)
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![3-cyclopropyl-6-[2-keto-2-(1,2,3,4-tetrahydroquinolin-6-yl)ethyl]isoxazolo[3,4-d]pyridazin-7-one](http://zinc12.docking.org/img/rings/262951.gif)
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![N-(5-cyclopropyl-2-phenyl-pyrazol-3-yl)-7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxamide](http://zinc12.docking.org/img/rings/319095.gif)
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![4-phenyl-6-[[2-(2-thienyl)oxazol-4-yl]methyl]isoxazolo[3,4-d]pyridazin-7-one](http://zinc12.docking.org/img/rings/88264.gif)
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![6-[[cyclohexyl(cyclopropylmethyl)amino]methyl]-4-phenyl-isoxazolo[3,4-d]pyridazin-7-one](http://zinc12.docking.org/img/rings/167684.gif)
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![7-keto-6H-isoxazolo[3,4-d]pyridazine-4-carboxylic Acid 1-adamantylmethyl Ester](http://zinc12.docking.org/img/rings/277424.gif)
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![6-[2-(5,6-dihydrobenzo[b][1]benzazepin-11-yl)-2-keto-ethyl]-4-phenyl-isoxazolo[3,4-d]pyridazin-7-one](http://zinc12.docking.org/img/rings/182759.gif)
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