含有氧气环和醇的呼吸道同胞性病毒聚合酶抑制剂的结构-活性关系
Minh T Tran1, Sandrine Grosse1, Rodrigo J Carbajo2
1Janssen Pharmaceutica NV, 2340 Beerse, Belgium.
ACS medicinal chemistry letters
|September 18, 2024
概括
通过修改JNJ-8003.3,开发出新的呼吸道同胞性病毒 (RSV) 聚合酶抑制剂. 这些新型化合物保持强大的抗病毒活性,为RSV感染提供潜在的新型暴露后治疗方法.
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:
- 呼吸道同胞体病毒 (RSV) 感染构成了重大的公共卫生挑战,需要有效的暴露后治疗选择,超出目前的预防措施.
- 呼吸系统综合性病毒非核酸聚合酶抑制剂 (NNIs) 是一个有前途的治疗类,JNJ-8003 之前已经证明了强大的体外和体内抗病毒疗效.
研究的目的:
- 通过对JNJ-8003化合物的结构导向修改来识别新型RSVNNI.
- 探索能够保持或增强抗病毒功效的链接器修饰,同时增加结构多样性.
主要方法:
- 使用结构导向设计来修改JNJ-8003的链接区域,从而合成含有2-氧环胺的衍生物.
- 对于新型衍生品,研究了各种环闭策略.
- 研究了用三醇部分替代胺键的生物异构性替代. 使用冷电子显微镜 (cryo-EM) 和核磁共振 (NMR) 形状分析来确认结合并评估结构-活性关系.
主要成果:
- 通过对JNJ-8003链接器的修改,确定了新型的2 - 氧化环氧化衍生物.
- 用三醇替代生物异构剂保留了抗病毒功效.
- 克里奥-EM证实了RSV聚合酶的封闭域内的结合,而NMR分析表明分子构成和抗病毒功效之间的相关性.
结论:
- 在JNJ-8003中进行的链接器修改成功产生了新型RSV NNI衍生物,并保持了生物活性.
- 这项研究丰富了RSV NNIs的结构多样性,使得进一步优化药理动力学和药理动力学特性成为可能.
- 这些发现为开发针对RSV感染的新型暴露后治疗提供了基础.
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