Synthesis and Structure−Activity Relationship in a Class of Indolebutylpiperazines as Dual 5-HT<sub>1A</sub> Receptor Agonists and Serotonin Reuptake Inhibitors
作者:Timo Heinrich、Henning Böttcher、Rolf Gericke、Gerd D. Bartoszyk、Soheila Anzali、Christoph A. Seyfried、Hartmut E. Greiner、Christoph van Amsterdam
DOI:10.1021/jm040793q
日期:2004.9.1
Systematic structural modifications of indolealkylphenylpiperazines led to improved selectivity and affinity within this class of 5-HT(1A) receptor agonists. Introduction of electron-withdrawing groups in position 5 on the indole raises serotonin transporter affinity, and the cyano group proved to be the best substituent here. 5-Fluoro and 5-cyano substituted indoles show comparable results in in vitro
吲哚烷基苯基哌嗪的系统结构修饰导致此类5-HT(1A)受体激动剂的选择性和亲和力提高。在吲哚的5位引入吸电子基团提高了5-羟色胺转运蛋白的亲和力,并且氰基被证明是此处最好的取代基。5-氟和5-氰基取代的吲哚在体外和体内试验中显示出可比的结果,并且通过计算分子静电势和偶极矩来支持这些取代基之间的生物等排。在离体(对氯苯丙胺测定)和体内(超声发声)测试中进一步检查了显示出有希望的体外数据的化合物。芳基哌嗪部分的优化表明,5-苯并呋喃基-2-羧酰胺最适合增加5-HT转运蛋白和5-HT(1A)受体的亲和力并抑制D(2)受体的结合。5- [4- [4-(5-氰基-3-吲哚基)丁基] -1-哌嗪基]苯并呋喃-2-羧酰胺29(维拉唑酮,EMD 68843)被确定为高选择性5-HT(1A)受体激动剂[GTPgammaS,ED(50)= 1.1 nM],具有亚纳摩尔的5-HT(1A)亲和力[IC(50)= 0