循环启发的结构优化:设计强大的非核酸逆转录酶抑制剂,提高安全性和选择性.
Yin-Xiang Zhang1, Christophe Pannecouque2, Erik De Clercq2
1Department of Chemistry, Engineering Center of Catalysis and Synthesis for Chiral Molecules, Shanghai Engineering Research Center of Industrial Asymmetric Catalysis of Chiral Drugs, State Key Laboratory of Green Chemical Synthesis and Conversion, Fudan University, Shanghai 200433, China.
Journal of medicinal chemistry
|January 9, 2026
概括
一种新型的双循环四聚胺衍生物,化合物16a,显示出对HIV-1的强烈活性,包括耐药菌株. 与现有治疗方法相比,这种有前途的候选药物提供了更好的安全性和可溶性.
科学领域:
- 药用化学 医学化学
- 有机合成 有机合成
- 药理学 药理学是指药理学的学科.
背景情况:
- 埃特拉维林 (ETR) 和里尔皮维林 (RPV) 是用于治疗HIV-1感染的非核酸逆转录酶抑制剂 (NNRTIs).
- 提高NNRTI的安全性和选择性对于改善患者的治疗结果和克服耐药性至关重要.
研究的目的:
- 与ETR相比,开发新型双循环四聚胺衍生物,其安全性和选择性概况得到改善.
- 评估这些新化合物作为潜在的抗艾滋病毒剂的体外和体内特性.
主要方法:
- 采用循环化策略,通过将ETR的pyrimidine环替换为dihydropteridin-6(5H) -one支架来合成新型的双循环四聚胺衍生物.
- 使用EC50值评估对野生型 (WT) 和突变HIV-1菌株的抗病毒活性.
- 用CC50值确定细胞毒性,并计算选择性指数 (SI).
- 评估了水溶性,代谢稳定性 (CYP酶敏感性),hERG通道抑制和急性体内毒性.
主要成果:
- 化合物16a对WT HIV-1 (EC50 = 3 nM) 和七种突变菌株 (EC50 = 14-77 nM) 显示出强烈的活性,与ETR.
- 16a表现出微不足道的细胞毒性 (CC50 = 196.46 μM) 和高SI (65,789),明显超过ETR和RPV.
- 16a显示水溶性改善,对CYP酶的敏感性最小,没有hERG通道抑制,并且没有急性毒性.
结论:
- 化合物16a是一种非常有前途的非核酸逆转录酶抑制剂候选物.
- 这种新型的双循环四聚胺基基架在效力,安全性和药物动力学特性方面提供了显著的优势.
- 第16a条要求对HIV-1感染的治疗进行进一步的研究.
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