![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_7ff4a1381aa4b77896843df6d2de01e6.svg) | Ethyl (7S)-15-methoxy-12-oxo-2,4,11-triazatetracyclo[11.4.0.02,6.07,11]heptadeca-1(17),3,5,13,15-pentaene-5-carboxylate | Ki | 27.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_de6852561e0648c74fdda66d92c4d965.svg) | L-838417 | Ki | 0.7 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_22a46c9becc3b6d83946f683377f623e.svg) | 2-(4-Chlorophenyl)-3aH-pyrazolo[4,3-c]quinolin-3-one | IC50 | 4.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_8f6666de537e129a51b24267f89a9d2a.svg) | 3-[3-Tert-butyl-2-[(2-methyl-1,2,4-triazol-3-yl)methoxy]pyrazolo[1,5-d][1,2,4]triazin-7-yl]-5-methyl-1,2-oxazole | Ki | 0.8 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_e8761c4849e13fdf381b9eb57913eafb.svg) | 7-Ethyl-4-[4'-(ethylsulfonyl)-6-fluoro-2'-methoxybiphenyl-3-yl]-7H-imidazo[4,5-c]pyridazine | Ki | 2.47 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_5b9096a31e08a7ee95c993f0ec43da87.svg) | 13-(4-Methyl-1,3-thiazol-2-yl)-15-pyridin-4-yl-4,11-diazatricyclo[9.4.0.02,7]pentadeca-1(15),2(7),3,5,13-pentaen-12-one | Ki | 0.6 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_42e0366c46ded2bcca0799ae9463c584.svg) | 13-(4-Methyl-1,3-thiazol-2-yl)-15-phenyl-4,11-diazatricyclo[9.4.0.02,7]pentadeca-1(15),2(7),3,5,13-pentaen-12-one | Ki | 0.3 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_e5008e20fe1551bfb2d64a14fe27fb06.svg) | 3-(2-Chlorobenzyloxy)-2-(4-chlorophenyl)-6,7,8,9-tetrahydro-2H-pyrazolo[4,3-c]quinoline | IC50 | 271.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_c8d9dde46b948458e55a84e2ddcacefa.svg) | 4-(4-Chlorophenyl)-5-[(2-chlorophenyl)methoxy]-12-oxa-3,4,8-triazatricyclo[7.4.0.02,6]trideca-1(9),2,5,7-tetraene | IC50 | 461.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_f3aebed722763459c80bdc1dcbc9888c.svg) | 2-(4-Chlorophenyl)-3-[(4-fluorophenyl)methoxy]-6,7,8,9-tetrahydropyrazolo[4,3-c]quinoline | IC50 | 57.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_fdcd2218ed02470b7a30a2e4b5c76610.svg) | 2-(1,3-Benzodioxol-5-yl)-3-[(2-chlorophenyl)methoxy]pyrazolo[4,3-c]quinoline | IC50 | 155.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_9d92cd0f24058da52b5eaa16765454d2.svg) | 2-(4-Chlorophenyl)-3-(cyclopropylmethoxy)-8-imidazol-1-ylpyrazolo[4,3-c]quinoline | IC50 | 2114.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_d43cbafa685b0b398c3c329151ab669c.svg) | 3-(2-Chlorobenzyloxy)-2-(4-chlorophenyl)-2H-pyrazolo[4,3-c]quinoline | IC50 | 265.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_32d7c06b2aa848bd5c0a98a1456a0675.svg) | 2-(4-Chlorophenyl)-3-(cyclopropylmethoxy)-2H-pyrazolo[4,3-c]quinoline | IC50 | 472.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_3920f762e965f6c836bcc7d98df7ec63.svg) | 4-(4-Chlorophenyl)-5-[(2-chlorophenyl)methoxy]-3,4,8-triazatricyclo[7.5.0.02,6]tetradeca-1(9),2,5,7-tetraene | IC50 | 605.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_263e8a47adc76d84f9a7bcd8b24cc13f.svg) | 2-(4-Chlorophenyl)-3-[(2-chlorophenyl)methoxy]-8,8-dimethyl-7,9-dihydro-6H-pyrazolo[4,3-c]quinoline | IC50 | 213.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_644bf8bfd61cabc12ea3285365e753ee.svg) | 2-(4-Chlorophenyl)-3-[(4-chlorophenyl)methoxy]-6,7,8,9-tetrahydropyrazolo[4,3-c]quinoline | IC50 | 177.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_35eda0970d9f44b18fa05b01eb945840.svg) | 3-(2-Chlorophenoxy)-2-(4-chlorophenyl)-6,7,8,9-tetrahydropyrazolo[4,3-c]quinoline | IC50 | 3000.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_60da444073ae29d4a217c57459384e52.svg) | 3-(2-Chlorobenzyloxy)-2-(2-fluorophenyl)-2H-pyrazolo[4,3-c]quinoline | IC50 | 2.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_5f1ecd3e738f57d6580854d60cf2af11.svg) | 2-(4-Chlorophenyl)-3-(cyclopropylmethoxy)-6,7,8,9-tetrahydropyrazolo[4,3-c]quinoline | IC50 | 185.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_d5427450da9dfae6f5c04118168f008f.svg) | 2-(4-Chlorophenyl)-3-[(2-fluorophenyl)methoxy]-6,7,8,9-tetrahydropyrazolo[4,3-c]quinoline | IC50 | 154.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_cd5a74597660c1e7a469834a6fafa6e9.svg) | 5-(7-Ethyl-7H-imidazo[4,5-c]pyridazin-4-yl)-4'-(ethylsulfonyl)-2'-methoxy-[1,1'-biphenyl]-2-ol | Ki | 92.2 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_18210f69d2aab777ddece560904ccad1.svg) | 7-Ethyl-4-[4-fluoro-3-(4-propan-2-ylsulfonylphenyl)phenyl]imidazo[4,5-c]pyridazine | Ki | 31.1 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_5e63a9d5a87d9436d0fc4a4be657d58a.svg) | 7-Cyclopropyl-4-[3-(4-ethylsulfonylphenyl)-4-fluorophenyl]imidazo[4,5-c]pyridazine | Ki | 31.1 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_870d0f84474b63db50d0cb323accac5f.svg) | 4-[3-(4-Ethylsulfonyl-2-fluorophenyl)-4-fluorophenyl]-7-propan-2-ylimidazo[4,5-c]pyridazine | Ki | 34.5 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_ab9c9655917b0e19f40a4c697715a1b2.svg) | 4-[2',6-Difluoro-4'-(methylsulfonyl)biphenyl-3-yl]-7-ethyl-7H-imidazo[4,5-c]pyridazine | Ki | 10.9 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_90e241dcb2d664a7752645617a93fd03.svg) | 5'-(7-Ethyl-7H-imidazo[4,5-c]pyridazin-4-yl)-2'-fluorobiphenyl-4-sulfonamide | Ki | 5.08 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_4fc979e0745927db033b3eed43da5af3.svg) | 4-[4'-(Ethylsulfonyl)-6-fluorobiphenyl-3-yl]-7-(1-methylcyclopropyl)-7H-imidazo[4,5-c]pyridazine | Ki | 34.8 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_b44251136329b0361dcdd0d146d2fd70.svg) | 4-[4'-(Ethylsulfonyl)-6-fluorobiphenyl-3-yl]-7-(propan-2-yl)-7H-imidazo[4,5-c]pyridazine | Ki | 23.9 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_fac23590a116051520347cc327ae54ed.svg) | 2'-Fluoro-5'-(7-isopropyl-7H-imidazo[4,5-c]pyridazin-4-yl)biphenyl-4-sulfonamide | Ki | 5.82 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_1672f06fbd4f74a4bb24dc37427eec6a.svg) | 2'-Fluoro-N-methyl-5'-[7-(propan-2-yl)-7H-imidazo[4,5-c]pyridazin-4-yl]biphenyl-4-sulfonamide | Ki | 16.4 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_db4f8da2fe5fc9fd02732646e2d5d71e.svg) | 4-(6-Chloro-4'-(ethylsulfonyl)-2'-methoxy-[1,1'-biphenyl]-3-yl)-7-ethyl-7H-imidazo[4,5-c]pyridazine | Ki | 29.7 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_e33210a2fdab0ee672bd126cadc73c75.svg) | 7-Ethyl-4-[3-(4-ethylsulfonyl-2-fluorophenyl)-4-fluorophenyl]imidazo[4,5-c]pyridazine | Ki | 18.2 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_752d7ec74cbb62ea88e2d0667689457c.svg) | 2-[2-Fluoro-5-(7-propan-2-ylimidazo[4,5-c]pyridazin-4-yl)phenyl]-5-propan-2-ylsulfonylbenzonitrile | Ki | 38.8 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_efa2f4facd947babe556eca530f40f57.svg) | 7-Cyclopropyl-4-[4-fluoro-3-(2-methoxy-4-methylsulfonylphenyl)phenyl]imidazo[4,5-c]pyridazine | Ki | 37.1 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_e83fd5610a48f548a4cbb4039f3c25a1.svg) | 7-Cyclopropyl-4-[4-fluoro-3-(2-methoxy-4-propan-2-ylsulfonylphenyl)phenyl]imidazo[4,5-c]pyridazine | Ki | 40.5 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_ed2b8953bb565fb562f589d9bc5d1e41.svg) | 7-Cyclobutyl-4-[4-fluoro-3-(2-methoxy-4-methylsulfonylphenyl)phenyl]imidazo[4,5-c]pyridazine | Ki | 101.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_eb4dbed285cf2fff5ee58ae989673794.svg) | 7-Cyclobutyl-4-[3-(4-ethylsulfonyl-2-fluorophenyl)-4-fluorophenyl]imidazo[4,5-c]pyridazine | Ki | 147.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_f299abaa382cf8948cccdfd0bd49b9f6.svg) | 7-Cyclopentyl-4-[3-(4-ethylsulfonyl-2-methoxyphenyl)-4-fluorophenyl]imidazo[4,5-c]pyridazine | Ki | 118.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_c548259e8506b6929b21e3a5f39cf25c.svg) | 5-Ethylsulfonyl-2-[2-fluoro-5-(7-propan-2-ylimidazo[4,5-c]pyridazin-4-yl)phenyl]benzonitrile | Ki | 29.1 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_c992ab88579ba6df715c3cf22b95f632.svg) | 7-Cyclopropyl-4-[3-(4-ethylsulfonyl-2-fluorophenyl)-4-fluorophenyl]imidazo[4,5-c]pyridazine | Ki | 67.8 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_daa52c2ea36b8b212209080c76b082d9.svg) | 5-[3-(7-Ethylimidazo[4,5-c]pyridazin-4-yl)phenyl]-2,3-dihydro-1-benzothiophene 1,1-dioxide | Ki | 102.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_6d5382fd45af4e58b721b92b0768ccca.svg) | 7-Ethyl-4-[3-(4-methylsulfonylphenyl)phenyl]imidazo[4,5-c]pyridazine | Ki | 56.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_99e00e5fed9a9d50ed247ef6f0975163.svg) | 4-[3-[2-(Difluoromethyl)-4-ethylsulfonylphenyl]-4-fluorophenyl]-7-ethylimidazo[4,5-c]pyridazine | Ki | 35.4 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_d6d20ff02d18b196e540bf57769086ba.svg) | 7-Cyclopropyl-4-[4-fluoro-3-(4-methylsulfonylphenyl)phenyl]imidazo[4,5-c]pyridazine | Ki | 43.3 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_1241ef8d2764861d1f02952f7af94584.svg) | 7-Ethyl-4-[4-fluoro-3-(4-methylsulfonylphenyl)phenyl]imidazo[4,5-c]pyridazine | Ki | 17.7 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_1cb0d30b3f298add7e9b77c01f841b3a.svg) | 2-[5-(7-Cyclopropylimidazo[4,5-c]pyridazin-4-yl)-2-fluorophenyl]-5-ethylsulfonylbenzonitrile | Ki | 170.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_c08434ef97bf634c4925235873f01332.svg) | 4-[3-(4-Cyclobutylsulfonyl-2-methoxyphenyl)-4-fluorophenyl]-7-ethylimidazo[4,5-c]pyridazine | Ki | 9.51 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_779fa9eaaecf94aefea949ee5cc82896.svg) | 7-Ethyl-4-[4-fluoro-3-(2-methoxy-4-propan-2-ylsulfonylphenyl)phenyl]imidazo[4,5-c]pyridazine | Ki | 11.7 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_910dddf9013dc0966c2b2d465495ed76.svg) | 7-Ethyl-4-[4-fluoro-3-(2-methoxy-4-methylsulfonylphenyl)phenyl]imidazo[4,5-c]pyridazine | Ki | 7.48 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_3a9d25164f9adbb725632775cb6eb763.svg) | 4-[4-Fluoro-3-(2-fluoro-4-propan-2-ylsulfonylphenyl)phenyl]-7-propan-2-ylimidazo[4,5-c]pyridazine | Ki | 87.4 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_f2d323070af22f75869f7e7537313e04.svg) | 2-[5-(7-Ethylimidazo[4,5-c]pyridazin-4-yl)-2-fluorophenyl]-5-ethylsulfonylbenzonitrile | Ki | 39.2 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_2aaf62be19e2862e0f4fdb84175560dd.svg) | 4-[3-(4-Ethylsulfonyl-2-methoxyphenyl)-4-fluorophenyl]-7-propan-2-ylimidazo[4,5-c]pyridazine | Ki | 14.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_a49697efcf23271878ca60940ba9886c.svg) | 4-[4-Fluoro-3-(2-methoxy-4-methylsulfonylphenyl)phenyl]-7-propan-2-ylimidazo[4,5-c]pyridazine | Ki | 8.56 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_7f7b41e221fe9d870df5866145ef9036.svg) | 7-Cyclobutyl-4-[3-(4-ethylsulfonylphenyl)-4-fluorophenyl]imidazo[4,5-c]pyridazine | Ki | 74.3 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_9ace117b78d36dc03451c767c2dce781.svg) | 2-[5-(7-Ethylimidazo[4,5-c]pyridazin-4-yl)-2-fluorophenyl]-5-propan-2-ylsulfonylbenzonitrile | Ki | 108.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_8d59100794faea20444b5f5647ac2f02.svg) | 4-[3-(2-Chloro-4-ethylsulfonylphenyl)-4-fluorophenyl]-7-propan-2-ylimidazo[4,5-c]pyridazine | Ki | 14.4 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_036cdabcc4b52094c247886079c94981.svg) | 7-Ethyl-4-[4-fluoro-3-(2-fluoro-4-propan-2-ylsulfonylphenyl)phenyl]imidazo[4,5-c]pyridazine | Ki | 61.3 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_71d58b0c5fc689799401ec78daa5af29.svg) | 4-[3-(4-Cyclopropylsulfonyl-2-methoxyphenyl)-4-fluorophenyl]-7-ethylimidazo[4,5-c]pyridazine | Ki | 9.71 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_bf45d282c07ae5694be664f67df273b1.svg) | 4-[5-(7-Ethylimidazo[4,5-c]pyridazin-4-yl)-2-fluorophenyl]-N-methylbenzenesulfonamide | Ki | 7.45 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_5a7e362f268c0b8174a7c87cea858d3c.svg) | 2-[5-(7-Cyclopropylimidazo[4,5-c]pyridazin-4-yl)-2-fluorophenyl]-5-propan-2-ylsulfonylbenzonitrile | Ki | 296.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_2b8b7f20c4963025637c55d6db5595c3.svg) | 4-[3-(4-Ethylsulfonylphenyl)-4-fluorophenyl]-7-propylimidazo[4,5-c]pyridazine | Ki | 120.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_cb83fc0e3b94c15db7aac07c1336dd0c.svg) | 4-[5-(7-Cyclopentylimidazo[4,5-c]pyridazin-4-yl)-2-fluorophenyl]-3-methoxybenzenesulfonamide | Ki | 91.4 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_f73921c599a3966c77dc516f0bf03654.svg) | [4-(7-Ethylimidazo[4,5-c]pyridazin-4-yl)-2-(4-ethylsulfonyl-2-fluorophenyl)phenyl]methanol | Ki | 678.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_340695569fd482dcb11cd89cefa469d8.svg) | [4-(7-Ethylimidazo[4,5-c]pyridazin-4-yl)-2-(4-ethylsulfonyl-2-methoxyphenyl)phenyl]methanol | Ki | 1750.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_8a832c54cb4c777a1061703d6a59b776.svg) | 7-Ethyl-4-[3-(4-ethylsulfonylphenyl)-4-fluorophenyl]imidazo[4,5-c]pyridazine | Ki | 21.7 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_8314796a0c84da4c89cd33735d12ee67.svg) | 5-[5-(7-Ethylimidazo[4,5-c]pyridazin-4-yl)-2-fluorophenyl]-2-methyl-2,3-dihydro-1-benzothiophene 1,1-dioxide | Ki | 69.5 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_3caa9a7e36f062bbca3c45361464567b.svg) | 7-Ethyl-4-[3-(4-ethylsulfonyl-2-methoxyphenyl)-4-isocyanophenyl]imidazo[4,5-c]pyridazine | Ki | 40.6 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_6955e5cce1536c867e6e415e8b1a2dde.svg) | 4-[5-(7-Cyclopropylimidazo[4,5-c]pyridazin-4-yl)-2-fluorophenyl]-N-methylbenzenesulfonamide | Ki | 19.0 [1] |
![](https://images.aatbio.com/dataset/ic50/gaba-receptor-alpha-2-subunit_a9dd4c0e8944ac3cb0180d1b7e28737a.svg) | 4-[4-Fluoro-3-(2-methoxy-4-propan-2-ylsulfonylphenyl)phenyl]-7-propan-2-ylimidazo[4,5-c]pyridazine | Ki | 19.1 [1] |