艾滋病毒逆转录酶的皮科莫拉抑制剂,其特征是诺维尼尔烯基组的双循环替代
Won-Gil Lee1, Ricardo Gallardo-Macias, Kathleen M Frey
1Department of Chemistry, Yale University , New Haven, Connecticut 06520-8107, United States.
Journal of the American Chemical Society
|October 25, 2013
概括
研究人员设计了新的双循环化合物,以取代HIV-1逆转录酶抑制剂中的活性组. 这些新型非核酸抑制剂 (NNRTIs) 对野生型和耐药HIV-1菌株表现出强烈的活性.
科学领域:
- 药用化学 医学化学
- 病毒学 病毒学
- 计算化学计算化学
背景情况:
- 甲基醇二化合物是HIV-1逆转录酶 (NNRTIs) 的强有力的非核酸抑制剂.
- 目前FDA批准的NNRTI rilpivirine含有一种cyanovinylphenyl (CVP) 组,这引发了反应性问题.
- 需要新的化学支架来开发更安全和更有效的HIV-1 NNRTIs.
研究的目的:
- 设计和合成HIV-1 NNRTIs中CVP组的新型双循环替代物.
- 评估设计化合物的抗病毒活性,以对抗野生型和耐药HIV-1.
- 调查该活性的结构基础并改善药理动力学特性.
主要方法:
- 计算机模拟被用来设计新的自行车结构.
- 合成和实验评估的2-cyanoindolizinyl,英多利和福拉尼尔类似物.
- 使用感染野生型和突变HIV-1的人类T细胞进行抗病毒检测.
- 进行X射线晶体学以确定抑制剂-酶复合物的结构.
- 测量主要类型的水溶性.
主要成果:
- 一种2-cyanoindolizinyl类似物显示出对野生型HIV-1的强有力的活性 (EC50 = 0.4nM).
- 这些化合物对具有Lys103Asn/Tyr181Cys突变的HIV-1具有显著活性 (EC50=10nM).
- 印醇和黄类似物对野生型HIV-1的EC50值接近10nM.
- X射线晶体结构证实了一种2-cyanoindolizine衍生物的结合模式.
- 与 rilpivirine 相比,印度利辛类似物显示出较好的水溶性 (~ 40 μg/mL).
结论:
- 双循环的2-cyanoindolizinyl结构是HIV-1 NNRTIs中CVP组的可行的替代品.
- 这些新型化合物具有强大且广泛的抗病毒活性,包括对抗性菌株的抗病毒活性.
- 印地利辛类型的水溶性改善表明,可能有更好的药理动力学特征.
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