在di-alkyl gallium quinolin-8-olates的抗莱什曼性活性中的结构-活性效应
Rebekah N Duffin1, Philip C Andrews1
1School of Chemistry, Monash University, Clayton, Melbourne, VIC 3800, Australia. phil.andrews@monash.edu.
新型有机复合体显示出强大的抗莱什曼病活性. 复合G3在对抗Leishmania寄生虫方面表现出较高的疗效,与安福特里辛B相比,与脂性相关.
科学领域:
- 有机金属化学 有机金属化学
- 药用化学 医学化学
- 寄生虫学的寄生虫学
背景情况:
- 莱什曼病仍然是一个重大的全球卫生挑战,需要开发新型治疗剂.
- 有机化合物正在研究其潜在的生物活性,包括抗寄生虫作用.
研究的目的:
- 合成和表征具有潜在抗莱什曼病活性的新型有机复合物.
- 评估这些复合体对各种Leishmania菌株的疗效,并评估它们对哺乳动物细胞的选择性.
主要方法:
- 六个有机复合物的合成和完整表征 ([Ga(R) 2quin]).
- 使用单晶X射线衍射的结构确定.
- 通过1H NMR光谱学评估水解稳定性.
- 在实验室中对L. major,L. amazonensis和L. donovani.的前性和前性形式的抗莱什曼性活性进行了评估.
- 哺乳动物细胞细胞毒性试验和虫入侵试验.
主要成果:
- 五个有机复合物 (G1-G5) 已成功合成和表征;由于净化问题,G6被排除在外.
- 复合体G1-G5对莱什曼尼亚前列腺炎有不同程度的活性.
- 复合体G1和G2具有很高的选择性,对哺乳动物细胞系的毒性最小.
- 有机体复合物G3 ([Ga(iBu) 2quin]) 和G4 ([Ga(sBu) 2quin]) 显示出显著的抗寄生虫活性对抗黄斑虫,其中G3的性能优于安福特素B.
- 抗莱什曼活性与脂友性正相关,与水溶性负相关.
结论:
- 新型有机复合体显示出有前途的抗莱什曼性质.
- 复合G3是一种高效的抗莱什曼病剂,其性能优于目前的药物控制.
- 脂性和水溶性是影响这些有机化合物对Leishmania寄生虫的有效性的关键因素.
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