质谱(MS)结合测定法是一种确定单一药物候选物对所选靶标亲和力的有力工具,最近被证明适用于筛选将动态组合化学反应生成为伪静态时生成的化合物库。筛选针对中枢神经系统中最丰富的γ-氨基丁酸(GABA)转运蛋白γ-氨基丁酸转运蛋白1(GAT1)的小libraries文库,发现了两种由纽福克酸衍生的结合剂,具有亚微摩尔亲和力。从联苯携带的命中作为铅结构开始,本研究的目的是通过筛选由肼10形成的联苯聚焦的假静态文库,发现新型的高亲和力GAT1粘合剂。和36种联苯甲醛11c - al。发现带有2',4'-二氯联苯残基的Hydrazone 12z是最有效的粘合剂,其纳摩尔亲和力低(p K i = 8.094±0.098)。当合成并评估了代表的稳定的碳氢化合物类似物时,最佳的粘合剂13z再次显示出2',4'-二氯联苯部分(p K i = 6.930±0.021)。
Novel Allosteric Ligands of γ-Aminobutyric Acid Transporter 1 (GAT1) by MS Based Screening of Pseudostatic Hydrazone Libraries
作者:Tobias J. Hauke、Thomas Wein、Georg Höfner、Klaus T. Wanner
DOI:10.1021/acs.jmedchem.8b01602
日期:2018.11.21
study describes the screening of dynamic combinatorial libraries based on nipecotic acid as core structure with substituents attached to the 5- instead of the common 1-position for the search of novel inhibitors of the GABAtransporterGAT1. The generated pseudostatic hydrazone libraries included a total of nearly 900 compounds and were screened for their binding affinities toward GAT1 in competitive mass
Identification of Pyrrolidine‐3‐acetic Acid Derived Oximes as Potent Inhibitors of γ‐Aminobutyric Acid Transporter 1 through Library Screening with MS Binding Assays
作者:Simone K. Huber、Georg Höfner、Klaus T. Wanner
DOI:10.1002/cmdc.201800556
日期:2018.12.6
pyrrolidine‐3‐acetic acid derived oximelibraries were applied to the concept of libraryscreening by MS Binding Assays, as a powerful technique to reveal new potent murine γ‐aminobutyric acid transporter subtype (mGAT1) inhibitors. Librarygeneration was accomplished by condensation of an excess of pyrrolidine‐3‐acetic acid bearing a hydroxylamine unit with various libraries, each composed of eight different
在这项研究中,将吡咯烷-3-乙酸衍生的肟文库应用于通过MS结合分析进行文库筛选的概念,这是揭示新型有效的鼠类γ-氨基丁酸转运蛋白亚型(mGAT1)抑制剂的强大技术。文库的生成是通过将带有羟胺单元的过量吡咯烷-3-乙酸与各种文库缩合来完成的,每个文库由八个不同的醛组成。肟文库已通过竞争性MS结合测定法进行了筛选,因此,通过解卷积实验进一步研究了活性最高的文库,以鉴定负责观察到的对目标mGAT1活性的单一肟。最终,所有识别出的匹配都经过重新合成,以根据它们的结合亲和力来表征它们,K i = 7.87±0.01)。