A series of 4-aminomethyl-7-benzyloxy-2H-chromen-2-ones was investigated with the aim of identifying multiple inhibitors of cholinesterases (acetyl- and butyryl-, AChE and BChE) and monoamine oxidase B (MAO B) as potential anti-Alzheimer molecules. Starting from a previously reported potent MAO B inhibitor (3), we studied single-point modifications at the benzyloxy or at the basic moiety. The in vitro screening highlighted triple-acting compounds (6, 8, 9, 16, 20) showing nanomolar and selective MAO B inhibition along with IC50 against ChEs at the low micromolar level. Enzyme kinetics analysis toward AChE and docking simulations on the target enzymes were run in order to get insight into the mechanism of action and plausible binding modes.

中文翻译：

---

追逐 ChEs-MAO B 多靶点 4-氨甲基-7-苄氧基-2H-Chromen-2-酮


研究了一系列 4-氨甲基-7-苄氧基-2H-色烯-2-酮，旨在鉴定多种胆碱酯酶（乙酰基和丁酰基、AChE 和 BChE）和单胺氧化酶 B (MAO B) 的潜在抑制剂抗阿尔茨海默病分子。从先前报道的有效 MAO B 抑制剂 (3) 开始，我们研究了苄氧基或碱性部分的单点修饰。体外筛选突出显示了三效化合物 (6、8、9、16、20)，显示出纳摩尔级选择性 MAO B 抑制作用以及低微摩尔水平下针对 ChE 的 IC50 值。对 AChE 进行酶动力学分析并对目标酶进行对接模拟，以深入了解作用机制和合理的结合模式。