Synthesis of GABA<sub>A</sub> Receptor Agonists and Evaluation of their α-Subunit Selectivity and Orientation in the GABA Binding Site
作者:Michaela Jansen、Holger Rabe、Axelle Strehle、Sandra Dieler、Fabian Debus、Gerd Dannhardt、Myles H. Akabas、Hartmut Lüddens
DOI:10.1021/jm701562x
日期:2008.8.1
heterologously expressed GABA A alpha ibeta 3gamma 2 receptors (i = 1-6). The effects of 5-aminomethyl-3 H-[1,3,4]oxadiazol-2-one 5d were comparable to GABA for all alpha subunit isoforms. 5-piperidin-4-yl-3 H-[1,3,4]oxadiazol-2-one 5a and 5-piperidin-4-yl-3 H-[1,3,4]oxadiazol-2-thione 6a were weak agonists at alpha 2-, alpha 3-, and alpha 5-containing receptors. When coapplied with GABA, they were antagonistic
用于治疗各种疾病的药物靶向 GABA A 受体。为了开发 α 亚基选择性化合物,我们合成了 5-(4-哌啶基)-3-异恶唑醇 (4-PIOL) 衍生物。3-isoxazolol 部分被 1,3,5-oxadiazol-2-one、1,3,5-oxadiazol-2-thione 和取代的 1,2,4-triazol-3-ol 杂环取代碱性哌啶取代基以及不含碱性氮的取代基。通过 [(3) H] muscimol 绑定和膜片钳实验与异源表达 GABA A α ibeta 3gamma 2 受体 (i = 1-6) 筛选化合物。5-aminomethyl-3 H-[1,3,4]oxadiazol-2-one 5d 的作用与 GABA 对所有 α 亚基亚型的影响相当。5-哌啶-4-基-3 H-[1,3,4]恶二唑-2-one 5a和5-哌啶-4-yl-3 H-[1,3,4]恶二唑-2-硫酮6a分别为α