Azetidine derivatives as novel γ-aminobutyric acid uptake inhibitors: Synthesis, biological evaluation, and structure–activity relationship
作者:Mark R. Faust、Georg Höfner、Jörg Pabel、Klaus T. Wanner
DOI:10.1016/j.ejmech.2010.02.029
日期:2010.6
In this study azetidine derivatives representing conformationally constrained GABA or β-alanine analogs were evaluated for their potency as GABA-uptake inhibitors. The study comprised derivatives substituted in 2- as well as in 3-position with either an acetic acid moiety or a carboxylic acid function. In addition, azetidine derivatives bearing a tetrazole ring as a bioisosteric substitute for a carboxylic
在这项研究中,评估了代表构象受限的GABA或β-丙氨酸类似物的氮杂环丁烷衍生物作为GABA吸收抑制剂的功效。该研究包括在2-位和3-位被乙酸部分或羧酸官能团取代的衍生物。另外,还包括带有四唑环的氮杂环丁烷衍生物作为羧酸基团的生物等位替代物。探索了3-羟基-3-(4-甲氧基苯基)氮杂环丁烷衍生物作为已知的GABA摄取抑制剂NNC-05-2045的类似物,该抑制剂表现出氮杂环丁烷环而不是后者中存在的哌啶环。既,Ñ -未被取代的化合物以及它们的Ñ从生物学上评估了对-烷基化的亲脂性衍生物对GAT-1和GAT-3转运蛋白的亲和力。发现具有4,4-二苯基丁烯基或4,4-双(3-甲基-2-噻吩基)丁烯基部分作为亲脂性残基的氮杂环丁烷-2-基乙酸衍生物在GAT-1上显示出最高的效价,IC 50值为分别为2.83±0.67μM和2.01±0.77μM。这些化合物中最有效的GAT-3抑制剂似乎是β-丙氨酸类似物1-