6-Benzyloxyphthalides as selective and reversible monoamine oxidase B inhibitors with antioxidant and anti-neuroinflammatory activities for Parkinson’s disease treatment
作者:Qing Song、Guangjun Yu、Wei Li、Yidan Xu、Shiqin Cong、Xiuxiu Liu、Zhenghuai Tan、Yong Deng
DOI:10.1016/j.bioorg.2022.105623
日期:2022.3
6-benzyloxyphthalides were designed and synthesized as potent monoamine oxidase B inhibitors with antioxidant and anti-neuroinflammatory activities. The representative compounds 8f and 14a exhibited excellent selective MAO-B inhibition activity (IC50 = 1.33 nM, SI = 865; IC50 = 0.02 nM, SI = 40250, respectively) and moderate antioxidant activity (0.34 and 0.36 Trolox equivalent, respectively). Further studies
一系列 6-苄氧基苯酞被设计和合成为具有抗氧化和抗神经炎症活性的强效单胺氧化酶 B 抑制剂。代表性化合物8f和14a表现出优异的选择性 MAO-B 抑制活性(IC 50 = 1.33 nM,SI = 865;IC 50 = 0.02 nM,SI = 40250,分别)和中等抗氧化活性(分别为 0.34 和 0.36 Trolox 当量) . 进一步的研究表明,它们是竞争性和准可逆的 MAO-B 抑制剂。在细胞实验中,它们可以显着降低LPS 刺激的 BV-2 细胞中 NO 和 TNF- α的产生,从而在体外进行抗神经炎症活性。此外,BBB 渗透性研究和预测的理化性质表明它们适用于 CNS。最后,在体内急性和亚急性MPTP诱导的PD小鼠模型中,8f和14a可以显着改善大多数行为障碍,恢复小鼠纹状体中DA含量并降低MDA含量,表现出比临床使用的safinamide更好的抗PD作用. 因此,化