作者:Maria Dichiara、Francesca Alessandra Ambrosio、Sang Min Lee、M. Carmen Ruiz-Cantero、Jessica Lombino、Adriana Coricello、Giosuè Costa、Dhara Shah、Giuliana Costanzo、Lorella Pasquinucci、Kyung No Son、Giuseppe Cosentino、Rafael González-Cano、Agostino Marrazzo、Vinay Kumar Aakalu、Enrique J. Cobos、Stefano Alcaro、Emanuele Amata
DOI:10.1021/acs.jmedchem.3c00959
日期:2023.8.24
The design and synthesis of a series of 2,7-diazaspiro[4.4]nonane derivatives as potent sigma receptor (SR) ligands, associated with analgesic activity, are the focus of this work. In this study, affinities at S1R and S2R were measured, and molecular modeling studies were performed to investigate the binding pose characteristics. The most promising compounds were subjected to in vitro toxicity testing
设计和合成一系列 2,7-二氮杂螺[4.4]壬烷衍生物作为有效的 sigma 受体 (SR) 配体,与镇痛活性相关,是这项工作的重点。在本研究中,测量了 S1R 和 S2R 的亲和力,并进行了分子建模研究以研究结合姿势特征。最有前途的化合物经过体外毒性测试,随后筛选体内镇痛特性。化合物9d ( AD258 ) 表现出可忽略不计的体外细胞毒性和对两种 SR 的高结合亲和力(K i S1R = 3.5 nM,K i S2R = 2.6 nM),但对其他疼痛相关靶点没有,并且在辣椒素引起的异常性疼痛模型,在极低剂量(0.6-1.25 mg/kg)下达到最大的抗异常性疼痛效果。功能活动实验表明, 9d的作用需要 S1R 拮抗作用,并且不会引起运动障碍。此外,9d表现出良好的药代动力学特征。