A series of phthalide alkyl tertiary amine derivatives were designed, synthesized and evaluated as potential multi-target agents against Alzheimer’s disease (AD). The results indicated that almost all the compounds displayed significant AChE inhibitory and selective activities. Besides, most of the derivatives exhibited increased self-induced Aβ_1-42 aggregation inhibitory activity compared to the lead compound DL-NBP, and some compounds also exerted good antioxidant activity. Specifically, compound I-8 showed the highest inhibitory potency toward AChE (IC₅₀ = 2.66 nM), which was significantly better than Donepezil (IC₅₀ = 26.4 nM). Moreover, molecular docking studies revealed that compound I-8 could bind to both the catalytic active site and peripheral anionic site of AChE. Furthermore, compound I-8 displayed excellent BBB permeability in vitro. Importantly, the step-down passive avoidance test indicated that I-8 significantly reversed scopolamine-induced memory deficit in mice. Collectively, these results suggested that I-8 might be a potent and selective AChE inhibitor for further anti-AD drug development.

设计，合成和评估了一系列邻苯二甲酰基烷基叔胺衍生物，作为对抗阿尔茨海默氏病（AD）的潜在多靶标药物。结果表明，几乎所有化合物均显示出显着的AChE抑制和选择性活性。此外，大多数的衍生物显示出增加的自感甲β _1-42相比，铅化合物聚集抑制活性DL -NBP，有些化合物也发挥良好的抗氧化活性。具体而言，化合物I-8对AChE的抑制力最高（IC ₅₀ = 2.66 nM），明显优于多奈哌齐（IC ₅₀ = 26.4 nM）。此外，分子对接研究表明I-8可以与AChE的催化活性位点和外围阴离子位点结合。此外，化合物I-8在体外显示出优异的BBB渗透性。重要的是，逐步降低的被动回避测试表明，I-8可显着逆转东amine碱诱导的小鼠记忆缺陷。总的来说，这些结果表明I-8可能是用于进一步抗AD药物开发的有效且选择性的AChE抑制剂。