Development of a Novel Class of Pyridazinone Derivatives as Selective MAO-B Inhibitors
作者:Mehmet Abdullah Alagöz、Jong Min Oh、Yaren Nur Zenni、Zeynep Özdemir、Mohamed A. Abdelgawad、Ibrahim A. Naguib、Mohammed M. Ghoneim、Nicola Gambacorta、Orazio Nicolotti、Hoon Kim、Bijo Mathew
DOI:10.3390/molecules27123801
日期:——
Sixteen compounds (TR1–TR16) were synthesized and evaluated for their inhibitory activities against monoamine oxidase A and B (MAOs). Most of the derivatives showed potent and highly selective MAO-B inhibition. Compound TR16 was the most potent inhibitor against MAO-B with an IC50 value of 0.17 μM, followed by TR2 (IC50 = 0.27 μM). TR2 and TR16 selectivity index (SI) values for MAO-B versus MAO-A were
合成了16 种化合物 ( TR1-TR16 ),并评估了它们对单胺氧化酶 A 和 B (MAO) 的抑制活性。大多数衍生物显示出有效且高度选择性的 MAO-B 抑制作用。化合物TR16是最有效的 MAO-B 抑制剂,IC 50值为 0.17 μM,其次是TR2 (IC 50 = 0.27 μM)。MAO-B 与 MAO-A 的TR2和TR16选择性指数 (SI) 值分别为 84.96 和高于 235.29。与基本结构相比,TR2和TR16中的对氯取代基增加了MAO-B的抑制活性。TR2和TR16是具有竞争力的可逆 MAO-B 抑制剂,K i值分别为 0.230 ± 0.004 和 0.149 ± 0.016 µM。PAMPA 方法表明化合物TR2和TR16具有穿过血脑屏障的趋势。对接研究表明,先导化合物通过与关键以及选择性 E84 或 Y326 残基的结合对 MAO-B 抑制有益,但对主要由疏水接触驱动的相互作用对