发现了新型聚环神经氨基酶抑制剂,其中1,3,4-oxadiazole thioetheramide作为核心骨干
Lin Lin Shang1, Zhi Jian Zhong1, Li Ping Cheng1
1School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai, 201418, China.
European journal of medicinal chemistry
|March 22, 2024
概括
合成了新的多聚环神经氨基酶 (NA) 抑制剂. 化合物N5针对150腔和N10针对430腔,对分别野生型和突变型H5N1流感菌株表现出强大的活性.
科学领域:
- 药用化学 医学化学
- 病毒学 病毒学
- 药物发现 药物发现 药物发现
背景情况:
- 神经氨基酶 (NA) 是抗流感药物的关键目标.
- 现有的NA抑制剂面临药物耐药性的挑战.
- 之前的研究在NA中发现了关键的结合腔 (150和430).
研究的目的:
- 设计和合成新型多重环NA抑制剂.
- 评估合成化合物对野生型和突变型H5N1.1的抑制和抗病毒活性.
- 探索结构-活性关系,以开发强效的抗流感药物.
主要方法:
- 设计和合成十六种新型的1,3,4-氧化二甲胺衍生物.
- 在体外酶抑制试验 (IC50) 针对野生类型和H274Y突变H5N1 NA.
- 抗病毒活性测定 (EC50) 针对H5N1.1.
- 分子对接研究以了解结合相互作用.
主要成果:
- 化合物N5对野生型H5N1 NA (IC50 = 0.14μM) 显示出强大的抑制作用,表现优于奥塞塔米维尔碳酸盐 (OSC).
- 化合物N10表现出对H274Y突变H5N1 NA (约. 比OSC有60倍的效力).
- 化合物N10对H5N1表现出极好的抗病毒活性 (EC50 = 0.11μM),优于OSC.
结论:
- 新型多重环NA抑制剂显示出作为抗流感药物的巨大潜力.
- 针对特定的NA腔 (150和430) 可以克服耐药性.
- 分子对接支持设计策略,并突出了强大的抑制的关键相互作用.
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