Synthesis of novel 5-substituted-2-aminotetralin analogs: 5-HT1A and 5-HT7 G protein-coupled receptor affinity, 3D-QSAR and molecular modeling
作者:Charles K. Perry、Austen B. Casey、Daniel E. Felsing、Rajender Vemula、Mehreen Zaka、Noah B. Herrington、Meng Cui、Glen E. Kellogg、Clinton E. Canal、Raymond G. Booth
DOI:10.1016/j.bmc.2019.115262
日期:2020.2
5-HT7 + or 5-HT1A receptors, several with modest selectivity (up to 12-fold) for binding at 5-HT7, and, several ligands with high selectivity (up to 40-fold) at the 5-HT1A receptor. 3D-QSAR results indicate that steric extensions at the C(5)-position improve selectivity for the 5-HT7 over 5-HT1A receptor, while steric and hydrophobic extensions at the chiral C(2)-amino position impart 5-HT1A selectivity
血清素5-HT7 G蛋白偶联受体(GPCR)是针对各种中枢和外周适应症的拟议药物治疗靶标,尽管尚无批准的选择性结合5-HT7的药物。我们先前曾报道,基于5-取代-N,N-二取代-1,2,3,4-四氢萘-2-胺(5-取代-2-氨基四氢萘,5-SAT)支架的前导类似物与在5-HT7 GPCR上具有亲和力,并且可以治疗小鼠模型中的自闭症症状;随后,发现该铅对5-HT1A GPCR具有高亲和力。在这里,我们报告了新型5-SAT类似物的合成,以在人5-HT7受体上建立三维定量结构亲和关系(3D-QSAR),用于与在高度同源的5-HT1A受体上进行的类似研究进行比较。我们报告了35种新的5-SAT配体,一些对5-HT7 +或5-HT1A受体具有极高的亲和力(Ki≤1 nM)和立体选择性,另一些对与5-HT7结合具有适度的选择性(最高12倍),而一些对配体的选择性高(在5-HT1A受体上最多可扩增40倍