Novel O-acylated amidoximes and substituted 1,2,4-oxadiazoles synthesised from (+)-ketopinic acid possessing potent virus-inhibiting activity against phylogenetically distinct influenza A viruses
作者:Vladimir V. Chernyshov、Olga I. Yarovaya、Iana L. Esaulkova、Ekaterina Sinegubova、Sophia S. Borisevich、Irina I. Popadyuk、Vladimir V. Zarubaev、Nariman F. Salakhutdinov
DOI:10.1016/j.bmcl.2021.128465
日期:2022.1
and for antiviral activity against influenza viruses of H1N1 and H7N9 subtypes. The synthesised compounds exhibited high virus-inhibiting activity against the H1N1 influenza virus. Some synthesised compounds were also active against the influenza virus of a different antigenic subtype: H7N9. The mechanism of the virus-inhibiting activity of these compounds is based on their interference with the fusion
本文介绍了在杂环的第 5 位含有双环取代基的新型取代 1,2,4-恶二唑和 O-酰化偕胺肟作为其合成前体的合成和抗病毒活性评估。从(+)-樟脑衍生物(+)-酮辛酸中获得了新的化合物。化学文库进行了体外测试对 MDCK 细胞系的细胞毒性和对 H1N1 和 H7N9 亚型流感病毒的抗病毒活性。合成的化合物对 H1N1 流感病毒表现出高病毒抑制活性。一些合成的化合物对不同抗原亚型的流感病毒也有活性:H7N9。这些化合物的病毒抑制活性机制是基于它们干扰病毒血凝素(HA)的融合活性。已证明对 HA 的受体结合活性没有干扰。根据分子对接结果,O-酰化偕胺肟和1,2,4-恶二唑的选择性抗病毒活性与其结构特征有关。O-酰化偕胺肟可能与位于融合肽位点的结合位点更互补,并且 1,2, 4-恶二唑与位于蛋白水解位点的位点更互补。不同类型 HA 结合位点的氨基酸残基的显着差异使我们能够解释所研究化合物的选择性抗病毒活性。