Structure-Activity Studies Reveal Scope for Optimisation of Ebselen-Type Inhibition of SARS-CoV-2 Main Protease.

Structure-Activity Studies Reveal Scope for Optimisation of Ebselen-Type Inhibition of SARS-CoV-2 Main Protease.
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DOI:
10.1002/cmdc.202100582
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发表时间:
2022-02-16
期刊:
影响因子:
3.4
通讯作者:
--
中科院分区:
医学4区
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活性有机硒化合物Ebselen正在研究中,用于治疗冠状病毒病2019(新冠肺炎)和其他疾病。我们报道了Ebselen与SARS冠状病毒2(SARS-CoV-2)主要蛋白酶(MPRO)硫磺类似物的结构-活性研究,采用基于翻转和蛋白质观察的质谱学方法。结果揭示了ebselen/ebselen衍生物介导的MPRO抑制作用的优化范围,特别是在提高选择性方面。Ebselen多次与Mpro发生共价反应,引发了关于选择性的问题。用硫取代ebselen中的硒的化合物,其效力与ebselen相当,但与mpro的共价反应次数较少,显示出优化ebselen选择性的潜力。
The reactive organoselenium compound ebselen is being investigated for treatment of coronavirus disease 2019 (COVID‐19) and other diseases. We report structure‐activity studies on sulfur analogues of ebselen with the Severe Acute Respiratory Syndrome coronavirus 2 (SARS‐CoV‐2) main protease (Mpro), employing turnover and protein‐observed mass spectrometry‐based assays. The results reveal scope for optimisation of ebselen/ebselen derivative‐ mediated inhibition of Mpro, particularly with respect to improved selectivity. Ebselen reacts covalently with Mpro multiple times, raising questions about selectivity. “Ebsulfur” compounds, in which the selenium of ebselen is replaced with sulfur, have comparable potency to ebselen but covalently react with Mpro fewer times, revealing potential for optimisation of the selectivity of ebselen
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