5-HT 2 receptor affinity, docking studies and pharmacological evaluation of a series of 1,3-disubstituted thiourea derivatives
作者:Anna Bielenica、Ewa Kędzierska、Michał Koliński、Sebastian Kmiecik、Andrzej Koliński、Ferdinando Fiorino、Beatrice Severino、Elisa Magli、Angela Corvino、Ilaria Rossi、Paola Massarelli、Anna E. Kozioł、Aleksandra Sawczenko、Marta Struga
DOI:10.1016/j.ejmech.2016.03.073
日期:2016.6
A series of 10 thiourea derivatives have been synthesized by the reaction of aromatic amine with a substituted aryl (compounds 1–3, 6–8) and alkylphenyl (4, 5, 9, 10) isothiocyanates. Their in vitro and in vivo pharmacological properties were studied. Among the evaluated compounds, two displayed very high affinity for the 5-HT2A receptor (1–0.043 nM and 5–0.6 nM), being selective over the 5-HT2C receptor
一系列10个硫脲衍生物的已被芳族胺与取代的芳基反应,合成(化合物1-3,6-8)和烷基苯(4,5,9,10)异硫氰酸酯。研究了它们的体外和体内药理特性。中所评估的化合物中,两个显示非常高的亲和性对5-HT 2A受体(1 -0.043纳米和5 -0.6 nm)时,具有选择性在5-HT 2C受体。衍生物3,5,9,10减少了70–89%,降低了L-5-HTP引起的头部抽搐发作。作为5-HT 2A受体拮抗剂的化合物1和5在DOI诱导的HTR数量上呈剂量依赖性降低。化合物1-5可以大大降低啮齿类动物中苯丙胺引起的过度活跃。在另一项测试中,1和2引起小鼠体温过高,而9和10导致体温过低。证明了所选衍生物的镇痛和抗惊厥特性。使用5-HT 2A同源模型进行分子对接研究 揭示了硫脲NH基团和Asp155 / Tyr370残基之间氢键的重要作用,以及与Phe339的π-π相互作用。