不同的人工核酸的基诱导的C1'-H抽象反应不同的人工核酸的抽象反应
1Discipline of Natural Sciences, Indian Institute of Information Technology, Design, and Manufacturing, Jabalpur, 482005, India. nrjena@iiitdmj.ac.in.
Journal of molecular modeling
|September 13, 2024
概括
人工核酸和一些抗病毒药物可能会被基激素降解,这可能会降低它们对抗COVID-19等病毒的有效性. 这项研究调查了它们的稳定性,并提出了对药物设计的含义.
科学领域:
- * 计算化学 计算机化学
- * 分子建模 * 分子建模
- * 生物化学 * 生物化学
背景情况:
- * 几种抗病毒药物 (Molnupiravir,Favipiravir,Ribavirin,Sofosbuvir,Galidesivir,Remdesivir) 通过抑制病毒RNA复制,显示出对抗COVID-19的希望.
- * 人工核酸也被探索为潜在的抗病毒剂.
- * 这些化合物对活性氧物种,特别是基激素的稳定性仍然在很大程度上不明.
研究的目的:
- * 调查人工核酸的易受性,并选择抗病毒药物,以基诱导的降解.
- * 为了比较这些分子与自然RNA核酸 (G,C,A,U) 的反应性.
- *阐明降解机制,重点关注C1'-抽象和对药物疗效的潜在影响.
主要方法:
- *密度函数理论 (DFT) 使用B3LYP-D3和oB97X-D函数进行计算.
- *使用6-31+G*和cc-PVTZ基础集进行结构优化.
- * 使用IEF-PCM方法模拟水性环境.
主要成果:
- * 大多数研究的人工核酸和抗病毒药物 (除了雷姆迪西维尔) 都容易受到基诱导的C1'-抽象.
- *这些反应表现出低的吉布斯自由能障碍和高的外热性,表明对降解的高度倾向.
- * 雷梅西维尔的C1'-CN键易受替代,可能释放关键的CN组并降低其抗病毒活性.
结论:
- * 基可以显著降解人工核酸和某些抗病毒药物,损害它们的治疗潜力.
- *这些发现强调了在设计新型抗病毒药物时考虑基性稳定性的重要性.
- * 雷梅西维尔独特的C1'-CN键具有特定的漏洞,可能会影响其长期疗效.
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