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基于干的虚拟查作为新化学类型的途径,用于候选PET放射性干,用于成像陶氏病变
Bryan T Hurtle1, Susovan Jana1, Lisheng Cai1
1Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, United States.
Journal of medicinal chemistry
|August 7, 2024
概括
基于干的虚拟查成功地确定了用于定子发射断层扫描 (PET) 的新型化学支架,向病的放射性干. 这种方法产生了高亲和度的化合物,包括一个适合碳-11标记的化合物,证明了LBVS.
科学领域:
- 神经科学是一个神经科学.
- 药用化学 医学化学
- 放射化学 放射化学是指辐射化学.
背景情况:
- 开发新的正电子发射断层扫描 (PET) 放射性连接体对于诊断和监测神经退行性疾病,如病,至关重要.
- 基于体的虚拟查 (LBVS) 尚未得到充分的探索,用于识别放射性体发育中的新结构支架.
研究的目的:
- 调查LBVS的实用性,以发现针对陶氏病变的PET放射性对象的新化学型.
- 为了识别和合成具有高亲和力与病理结合位点的新配体.
主要方法:
- 在 ZINC12 数据库中使用四个查询组合进行搜索,通过 LBVS.识别潜在的支架.
- 在阿尔茨海默氏病的大脑组织中购买并测试了13个高等级的命中药物,以测试它们与已知的放射性对象竞争的能力.
- 合成精心制作的有前途的热门产品,重点是2-替代的6-甲基甲烯化学型.
主要成果:
- 鉴定了2-替代的6-甲基纳夫他林作为一种新型化学型,具有tau PET放射性对象的潜力.
- 合成了三种新的配体 (25,26,28),它们对 [3H]6 (flortaucipur) 结合点具有很高的亲和力.
- 化合物28表现出高亲和力 (Ki,7nM),有利的物理化学性质,以及对碳-11标签的适应性.
结论:
- LBVS是一种有价值的方法,用于发现PET放射性体开发的新型化学型.
- 已识别的2 - 替代的6 - 甲基甲基架构代表了开发新的tau PET成像剂的有希望的起点.
- 化合物28是一个强有力的候选人,以进一步发展为PET放射性对病的放射性对象.
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