Tetrahydrobenzo[h]quinoline derivatives as a novel chemotype for dual antileishmanial-antimalarial activity graced with antitubercular activity: Design, synthesis and biological evaluation
作者:Tamer M. Ibrahim、Ghada Abada、Marcel Dammann、Raed M. Maklad、Wagdy M. Eldehna、Rofaida Salem、Marwa M. Abdelaziz、Ramadan A. El-domany、Adnan A. Bekhit、Frank M. Beockler
DOI:10.1016/j.ejmech.2023.115534
日期:2023.9
Derivatives with tetrahydrobenzo[]quinoline chemotype were synthesized via one-pot reactions and evaluated for their antileishmanial, antimalarial and antitubercular activities. Based on a structure-guided approach, they were designed to possess antileishmanial activity through antifolate mechanism, via targeting pteridine reductase 1 (-PTR1). The antipromastigote and antiamastigote activity are promising
通过一锅反应合成了四氢苯并[]喹啉化学型的衍生物,并评估了它们的抗地什曼病、抗疟疾和抗结核活性。基于结构引导方法,它们被设计为通过抗叶酸机制,通过靶向蝶啶还原酶 1 (-PTR1) 来具有抗利什曼活性。抗前鞭毛体和抗鞭毛体活性对所有候选者来说都是有前景的,并且在低或亚微摩尔活性范围内优于参考米替福辛。它们的抗叶酸机制通过叶酸和亚叶酸逆转这些化合物的抗利什曼活性的能力得到证实,与-PTR1抑制剂甲氧苄啶相比。分子动力学模拟证实了最活跃的候选物与利什曼原虫 PTR1 具有稳定且高潜力的结合。在抗疟活性方面,大多数化合物表现出良好的抗疟原虫作用,抑制率高达97.78%。针对氯喹抗性菌株 (RKL9),进一步筛选了最具活性的化合物,其 IC 值范围为 0.0198–0.096 μM,而硫酸氯喹的 IC 值为 0.19420 μM。最活跃的化合物与野生型和四重突变体 DHFR-TS 结构的分子对接使抗疟活性合理化。与