新型α-ketoamide衍生物的发现和结构-活性关系研究针对SARS-CoV-2主要蛋白酶
Chong Huang1, Rui Zeng1, Jingxin Qiao1
1Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China.
European journal of medicinal chemistry
|July 30, 2023
概括
研究人员发现了新型的α-ketoamide衍生物,可以抑制SARS-CoV-2主要蛋白酶 (Mpro),这是COVID-19治疗的关键目标. 化合物27h表现出强大的抗病毒活性和有利的特性,使其成为药物开发的有希望的头.
科学领域:
- 药用化学 医学化学
- 病毒学 病毒学
- 结构生物学 结构生物学
背景情况:
- SARS-CoV-2 主蛋白酶 (Mpro) 对病毒复制至关重要,使其成为抗病毒疗法的重要目标.
- 现有治疗方法突出显示,需要新型抑制剂,其疗效和安全性更好.
研究的目的:
- 发现和描述基于α-胺基衍生物的SARS-CoV-2 Mpro抑制剂的新类.
- 为了评估化合物的抗病毒活性,标特异性和药理动力学特性.
主要方法:
- 合成和结构-活性关系 (SAR) 分析的α-基托胺衍生物.
- 生物化学测试以确定针对Mpro.的抑制度 (IC50)
- 结晶结构确定与抑制剂复合的Mpro.
- 在体外抗病毒试验测量疗效 (EC50) 和细胞毒性.
主要成果:
- 化合物27h的鉴定,它是一种强大的Mpro抑制剂,IC50为10.9nM.
- 晶体结构揭示了α-胺弹头与Cys145.5的共价结合.
- 化合物27h在体外表现出强烈的抗病毒活性 (EC50 = 43.6 nM),相当于Nirmatrelvir.
- 观察到对人类蛋白酶的优异向特异性和低毒性,以及有利的药理动力学.
结论:
- 化合物27h代表了开发新型SARS-CoV-2 Mpro抑制剂的有希望的化合物.
- 阿尔法基托胺基基架为准Mpro.提供了一个可行的策略.
- 需要进一步的研究来推动化合物27h向临床应用.
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