Discovery, synthesis, biological evaluation and molecular docking study of (R)-5-methylmellein and its analogs as selective monoamine oxidase A inhibitors
作者:Chao Huang、Juan Xiong、Hui-Da Guan、Chang-Hong Wang、Xinsheng Lei、Jin-Feng Hu
DOI:10.1016/j.bmc.2019.03.060
日期:2019.5
nigripes (called Wuling Shen in Chinese)¸ was found to be a selective inhibitor against monoamine oxidase A (MAO-A) and might play an important role in the clinical usage of this edible fungus as an anti-depressive traditional Chinese medicine (TCM). Based on the discovery and hypothesis, a variety of (R)-5-MM analogs were synthesized and evaluated in vitro against two monoamine oxidase isoforms (MAO-A
(R)-5-甲基纤维素(5-MM)是药用木霉(Xylaria nigripes)的发酵菌丝体中的主要成分(沉武陵¸)¸被发现是针对单胺氧化酶A(MAO-A)的选择性抑制剂。并可能在这种食用菌作为抗抑郁中药(TCM)的临床应用中发挥重要作用。基于发现和假设,合成了多种(R)-5-MM类似物,并在体外针对两种单胺氧化酶同工型(MAO-A和MAO-B)进行了评估。大多数合成类似物均表现出对MAO-A的选择性抑制,IC50值为0.06至29 µM,化合物13aR是最有效的类似物,具有高选择性(IC50,MAO-A:0.06 µM; MAO-B:> 50 µM)。有趣的是,13aR的酶动力学研究表明,根据所谓的“紧密结合抑制”模式,该配体似乎在MAO-A活性位点结合。之后进行13aR的分子对接研究,以合理化获得的生物学结果。