Aldoxime- and hydroxy-functionalized chalcones as highly potent and selective monoamine oxidase-B inhibitors
作者:Jong Min Oh、T.M. Rangarajan、Reeta Chaudhary、Nicola Gambacorta、Orazio Nicolotti、Sunil Kumar、Bijo Mathew、Hoon Kim
DOI:10.1016/j.molstruc.2021.131817
日期:2022.2
index (SI) of 1,113. HC3 also potently inhibited MAO-B (IC50 = 0.0067 µM) and had the highest SI (1,455). ACE7 and ACE15 were also potent MAO-B inhibitors (IC50 = 0.012 and 0.018 µM, respectively), with SIs of 260 and 1,161, respectively. HC3 and HC6 were reversible competitive inhibitors of MAO-B, with Ki values of 0.0036 and 0.0013 μM, respectively. A structure–activity relationship revealed that methyl
评估了一组 30 种查尔酮衍生物,包括 19 种醛肟-查尔酮醚 (ACE) 和 11 种羟基-查尔酮 (HC),这些衍生物之前使用 Pd 催化的 C-O 交叉偶联方法合成,用于评估它们对单胺氧化酶的抑制活性。 MAO)、胆碱酯酶 (ChE) 和 β-分泌酶 (BACE-1)。HC6 是最有效的 MAO-B 抑制剂,IC 50值为 0.0046 µM,选择性指数 (SI) 为 1,113。HC3 还有效抑制 MAO-B (IC 50 = 0.0067 µM) 并具有最高的 SI (1,455)。ACE7 和 ACE15 也是有效的 MAO-B 抑制剂(IC 50 分别 为 0.012 和 0.018 µM),SI 分别为 260 和 1,161。HC3 和 HC6 是 MAO-B 的可逆竞争性抑制剂,K i值分别为 0.0036 和 0.0013 μM。构效关系表明甲基和氟取代基有助于增加抑制和选择性。ACE7