Structural modifications of the serotonin 5-HT7 receptor agonist N-(4-cyanophenylmethyl)-4-(2-biphenyl)-1-piperazinehexanamide (LP-211) to improve in vitro microsomal stability: A case study
作者:Enza Lacivita、Sabina Podlewska、Luisa Speranza、Mauro Niso、Grzegorz Satała、Roberto Perrone、Carla Perrone-Capano、Andrzej J. Bojarski、Marcello Leopoldo
DOI:10.1016/j.ejmech.2016.05.005
日期:2016.9
and α1 adrenergic receptors. Compound 50 showed 3-fold higher in vitro stability towards oxidative metabolism than 1 and was able to stimulate neurite outgrowth in neuronal primary cultures through the 5-HT7 receptor in a shorter time and at a lower concentration than the agonist 1. A preliminary disposition study in mice revealed that compound 50 was metabolically stable and was able to pass the blood–brain
5-HT 7血清素受体正在揭示神经发育和神经精神疾病的创新治疗策略的有希望的目标。在这里,我们报告选择性和脑渗透5-HT 7受体激动剂LP-211(1)的三十个长链芳基哌嗪类似物的合成,旨在增强对微粒体氧化代谢的稳定性。使用了常用的药物化学策略(例如,降低了整体的亲脂性,引入了吸电子基团,阻断了可能的新陈代谢易位部位)和体外测试了微粒体的稳定性。数据表明,采用的设计策略不会直接转化为稳定性的提高。相反,化合物的代谢稳定性与在分子的明确定义的区域中特定取代基的存在有关。收集的数据允许构建机器学习模型,该模型在给定的化学空间内能够描述和定量预测化合物的代谢稳定性。大部分的合成的化合物的保持高亲和性对5-HT 7种受体,并显示向选择性5-HT 6和多巴胺d 2个受体和不同的选择性5-HT 1A和α 1个肾上腺素能受体。化合物50表现出比1高3倍的体外抗氧化代谢稳定性,并且能够通过5-HT 7受体