Structure–Activity Relationship Studies on Oxazolo[3,4-<i>a</i>]pyrazine Derivatives Leading to the Discovery of a Novel Neuropeptide S Receptor Antagonist with Potent <i>In Vivo</i> Activity
作者:Valentina Albanese、Chiara Ruzza、Erika Marzola、Tatiana Bernardi、Martina Fabbri、Anna Fantinati、Claudio Trapella、Rainer K. Reinscheid、Federica Ferrari、Chiara Sturaro、Girolamo Calò、Giorgio Amendola、Sandro Cosconati、Salvatore Pacifico、Remo Guerrini、Delia Preti
DOI:10.1021/acs.jmedchem.0c02223
日期:2021.4.8
urgent need for new effective therapeutic approaches. Potent NPSR antagonists in vitro have been discovered which, however, require further optimization of their in vivo pharmacological profile. This work describes a new series of NPSR antagonists of the oxazolo[3,4-a]pyrazine class. The guanidine derivative 16 exhibited nanomolar activity in vitro and 5-fold improved potency in vivo compared to SHA-68,
Neuropeptide S 通过与其 G 蛋白偶联受体(称为神经肽 S 受体 (NPSR))相互作用来调节重要的神经生物学功能,包括运动、焦虑和药物滥用。 NPSR 拮抗剂可潜在用于治疗药物滥用疾病,迫切需要新的有效治疗方法。体外有效的 NPSR 拮抗剂已被发现,然而,需要进一步优化其体内药理学特性。这项工作描述了恶唑并[3,4- a ]吡嗪类的一系列新 NPSR 拮抗剂。与该领域的参考药理学工具SHA-68相比,胍衍生物16在体外表现出纳摩尔级活性,在体内效力提高了 5 倍。化合物16可以被认为是研究 NPSergic 系统转化潜力的新工具。还进行了深入的分子建模研究,以获得对观察到的结构-活性关系的新见解,并提供配体/NPSR相互作用的更新模型。