Synthesis, Biological Evaluation, and Molecular Modeling Studies of 3,4-Diarylpyrazoline Series of Compounds as Potent, Nonbrain Penetrant Antagonists of Cannabinoid-1 (CB<sub>1</sub>R) Receptor with Reduced Lipophilicity
作者:Malliga R. Iyer、Resat Cinar、Casey M. Wood、Charles N. Zawatsky、Nathan J. Coffey、Kyu Ah Kim、Ziyi Liu、Alexis Katz、Jasmina Abdalla、Sergio A. Hassan、Yong-Sok Lee
DOI:10.1021/acs.jmedchem.1c01836
日期:2022.2.10
showed high affinity for CB1R and potent in vitro CB1R antagonist activities. Promising compounds with potent CB1R activity were evaluated in tissue distribution studies. Compounds 6a, 6f, and 7c showed limited brain penetrance attesting to its peripheral restriction. The 4S-enantiomer of these compounds further showed a stereoselective affinity for the CB1 receptor and behaved as inverse agonists.
在本报告中,我们描述了新型“四臂”二氢吡唑啉化合物的合成和构效关系,该化合物被设计为大麻素-1受体(CB 1 R)的外周限制性拮抗剂。合成了一系列外消旋 3,4-二芳基吡唑啉,并在 CB 1受体结合测定中进行了初步评估。这些新型化合物旨在限制脑渗透性并降低亲脂性,显示出对 CB 1 R 的高亲和力和有效的体外CB 1 R 拮抗剂活性。在组织分布研究中评估了具有有效 CB 1 R 活性的有前景的化合物。化合物6a 、 6f和7c显示出有限的脑渗透率,证明其外周限制。这些化合物的4S-对映异构体进一步显示出对CB 1受体的立体选择性亲和力并充当反向激动剂。对饮食诱导肥胖 (DIO) 小鼠的食物摄入和体重减轻的体内研究表明,这些化合物可以作为开发选择性 CB 1 R 拮抗剂的潜在先导物,并具有改善的效力和外周限制。