Application of Fluorine- and Nitrogen-Walk Approaches: Defining the Structural and Functional Diversity of 2-Phenylindole Class of Cannabinoid 1 Receptor Positive Allosteric Modulators
作者:Sumanta Garai、Pushkar M. Kulkarni、Peter C. Schaffer、Luciana M. Leo、Asher L. Brandt、Ayat Zagzoog、Tallan Black、Xiaoyan Lin、Dow P. Hurst、David R. Janero、Mary E. Abood、Anaelle Zimmowitch、Alex Straiker、Roger G. Pertwee、Melanie Kelly、Anna-Maria Szczesniak、Eileen M. Denovan-Wright、Ken Mackie、Andrea G. Hohmann、Patricia H. Reggio、Robert B. Laprairie、Ganesh A. Thakur
DOI:10.1021/acs.jmedchem.9b01142
日期:2020.1.23
(CB1R) allosteric ligands hold a far-reaching therapeutic promise. We report the application of fluoro- and nitrogen-walk approaches to enhance the drug-like properties of GAT211, a prototype CB1R allosteric agonist-positive allosteric modulator (ago-PAM). Several analogs exhibited improved functional potency (cAMP, β-arrestin 2), metabolic stability, and aqueous solubility. Two key analogs, GAT591
大麻素1受体(CB1R)变构配体具有深远的治疗前景。我们报告了氟步行和氮步行方法的应用,以增强GAT211(原型CB1R变构激动剂-阳性变构调节剂(ago-PAM))的类药物特性。几种类似物表现出改善的功能效能(cAMP,β-arrestin2),代谢稳定性和水溶性。两个关键的类似物GAT591(6r)和GAT593(6s)在神经元培养物中表现出增强的变构激动剂和PAM活性,改善的代谢稳定性和增强的正构激动剂结合(CP55,940)。两种类似物在CFA炎性疼痛模型中均显示出良好的止痛效果,且作用持续时间超过GAT211,同时没有不良的拟人麻醉作用。另一个类似物GAT592(9j),在鼠青光眼模型中表现出适度的前PAM效力和改善的水溶性,同时治疗性降低了眼内压。在我们最近开发的CB1R变构激活和正变构调节计算模型中,解释了此类变构调节剂中的SAR结果和增强的变构活性。