Asymmetric total synthesis and identification of tetrahydroprotoberberine derivatives as new antipsychotic agents possessing a dopamine D1, D2 and serotonin 5-HT1A multi-action profile
作者:Haifeng Sun、Liyuan Zhu、Huicui Yang、Wangke Qian、Lin Guo、Shengbin Zhou、Bo Gao、Zeng Li、Yu Zhou、Hualiang Jiang、Kaixian Chen、Xuechu Zhen、Hong Liu
DOI:10.1016/j.bmc.2012.12.016
日期:2013.2
An effective and rapid method for the microwave-assisted preparation of the key intermediate for the total synthesis of tetrahydroprotoberberines (THPBs) including l-stepholidine (l-SPD) was developed. Thirty-one THPB derivatives with diverse substituents on A and D ring were synthesized, and their binding affinity to dopamine D1, D2 and serotonin 5-HT1A and 5-HT2A receptors were determined. Compounds
开发了一种有效且快速的微波辅助制备关键中间体的关键方法,该中间体用于全合成包括1- Stepholidine(1- SPD)的四氢小pro碱(THPBs)。合成了31个在A和D环上具有不同取代基的THPB衍生物,并测定了它们与多巴胺D 1,D 2和5-羟色胺5-HT 1A和5-HT 2A受体的结合亲和力。化合物18k和18m被确定为D 1受体的部分激动剂,K i值分别为50和6.3 nM,而两种化合物均充当D 2。受体拮抗剂(分别为K i = 305和145 nM)和5-HT 1A受体完全激动剂(分别为K i = 149和908 nM)。这两种THPBs化合物在动物模型中发挥了抗精神病作用。在完整动物中采用单单位记录的进一步电生理研究表明,18k兴奋的多巴胺能(DA)神经元与其5-HT 1A受体激动活性有关。这些结果表明,靶向多种神经递质受体的这两种化合物可能会提供具有新药理学特征的新型先导药物,用于治疗精神分裂症。