New N- and O-arylpiperazinylalkyl pyrimidines and 2-methylquinazolines derivatives as 5-HT7 and 5-HT1A receptor ligands: Synthesis, structure-activity relationships, and molecular modeling studies
作者:Sebastiano Intagliata、Maria N. Modica、Valeria Pittalà、Loredana Salerno、Maria A. Siracusa、Alfredo Cagnotto、Mario Salmona、Rafał Kurczab、Giuseppe Romeo
DOI:10.1016/j.bmc.2016.12.039
日期:2017.2
studies of structure activity relationships on 4-substituted piperazine derivatives, in this work we synthesized a novel set of long-chain arylpiperazines with the purpose of elucidating if some structural modifications in the terminal fragment could affect the binding affinity for the 5-HT7 and 5-HT1A receptors. In this new series, the quinazolinone system of the previous derivatives was replaced by a
基于我们对4-取代哌嗪衍生物的结构活性关系的较早研究,在这项工作中,我们合成了一组新的长链芳基哌嗪,目的是阐明末端片段中的某些结构修饰是否会影响对5哌嗪的结合亲和力。 -HT 7和5-HT 1A受体。在这个新系列中,以前的衍生物的喹唑啉酮系统被6-苯基嘧啶或2-甲基喹唑啉取代,它们被用作制备新化合物的通用结构单元。通过五个亚甲基链的4-芳基哌嗪部分锚定在杂环支架的氮或氧原子上。哌嗪核所带有的取代基是苯基,苯甲基,3-或4-氯苯基和2-乙氧基苯基。对人类克隆的5-HT 7和5-HT 1A受体进行的结合测试表明,在新合成的衍生物中,4- [5- [4-(2-(2-乙氧基苯基)-1-哌嗪基]戊氧基] -6-苯基嘧啶(13)和3- [5- [4-(2-乙氧基苯基)-1-哌嗪基]戊基] -2-甲基-4(3 H)喹唑啉酮(20)中显示的最佳亲和力值,ķ我 = 23.5和8.42 nM的对5-HT 7和6