Solid-supported synthesis, molecular modeling, and biological activity of long-chain arylpiperazine derivatives with cyclic amino acid amide fragments as 5-HT7 and 5-HT1A receptor ligands
作者:Vittorio Canale、Paweł Guzik、Rafał Kurczab、Pascal Verdie、Grzegorz Satała、Bartłomiej Kubica、Maciej Pawłowski、Jean Martinez、Gilles Subra、Andrzej J. Bojarski、Paweł Zajdel
DOI:10.1016/j.ejmech.2014.03.005
日期:2014.5
A 47-membered library of novel long-chain arylpiperazines, which contained cyclic amino acid amides in the terminal fragment (pyrrolidine-2-carboxamide and 1,2,3,4-tetrahydroisoquinoline-3-carboxamide), was synthesized on Rink-amide resin and biologically evaluated for binding affinity for 5-HT7 and 5-HT1A receptors. Surprisingly, members of the designed series containing piperidine-2-carboxamide fragments
在Rink-amide上合成了一个由47个成员组成的新颖长链芳基哌嗪文库,该文库的末端片段中含有环氨基酸酰胺(吡咯烷-2-羧酰胺和1,2,3,4-四氢异喹啉-3-羧酰胺)树脂和生物学评估对5-HT 7和5-HT 1A受体的结合亲和力。出人意料的是,所设计的含有哌啶-2-甲酰胺片段的系列的成员经历了水解过程,该水解过程是在酸性处理过程中发生,以从固体载体上释放出来,水解成它们各自的胡椒酸类似物。库中的代表性化合物对5-HT 7(K i = 18–3134 nM)和5-HT 1A(K i = 0.5–6307 nM)位点。分子模型支持了所研究化合物与5-HT 7受体结合的可能相互作用。还进行了研究以支持对酰胺片段,亚烷基间隔基的长度以及芳基哌嗪取代基对受体亲和力和选择性的影响的探索。