Design, Synthesis, and Structure–Activity Relationship Studies of Novel Indolyalkylpiperazine Derivatives as Selective 5-HT<sub>1A</sub> Receptor Agonists
作者:Wenli Wang、Lan Zheng、Wei Li、Chen Zhu、Weiqing Peng、Bing Han、Wei Fu
DOI:10.1021/acs.jcim.9b00926
日期:2020.1.27
5-HT1A receptor (5-HT1AR) agonists have been implicated in the treatment of a variety of central nervous system (CNS) diseases such as depression and anxiety, et al. Based on our previously found compound FW01 (Ki = 51 ± 16 nM) obtained by virtual screening, a series of FW01 derivatives were designed and synthesized by the modification of the amide tail group as well as indole headgroup of FW01. SAR
5-HT1A受体(5-HT1AR)激动剂已涉及多种中枢神经系统(CNS)疾病的治疗,例如抑郁症和焦虑症等。基于我们先前发现的通过虚拟筛选获得的化合物FW01(Ki = 51±16 nM),通过修饰FW01的酰胺尾基和吲哚基团设计并合成了一系列FW01衍生物。SAR探索发现,酰胺尾基和吲哚基团在确定对多巴胺和5-羟色胺受体亚型的结合亲和力和选择性中起着关键作用。在所有测试的化合物中,9_24的Ki值为5±0.6 nM,对5-HT1AR的选择性很好。[35S]GTPγS分析显示9_24是对5-HT1AR的完全激动剂,EC50值为0.059 nM,显示为266.2和146。对5-HT2A和D3的选择性是4倍。用5-HT1AR-9_24进行了分子动力学模拟和分子对接研究,以揭示其高活性和选择性的机理。最后,提出了5-HT1AR的逐步9_24诱导信号转导机制。