Design, synthesis, molecular docking and biological evaluation of β-carboline derivatives as cholinesterase inhibitors
作者:Paula Baréa、Diego Alberto dos Santos Yamazaki、Diego de Souza Lima、Flavio Augusto Vicente Seixas、Willian Ferreira da Costa、Gisele de Freitas Gauze、Maria Helena Sarragiotto
DOI:10.1016/j.molstruc.2022.134291
日期:2023.2
A set of novel β-carboline derivatives were designed and subjected to virtual screening studies by molecular docking in AChE. Among the compounds investigated, derivatives 1a-c, 2a, 3d-f and 4d,e showed lower scores than donepezil (reference compound) and reproducibility in Autodock and Autodock Vina programs. These derivatives were synthesized and evaluated in vitro against AChE and BuChE. The derivatives
设计了一组新型β-咔啉衍生物,并通过 AChE 中的分子对接进行了虚拟筛选研究。在所研究的化合物中,衍生物1a-c、2a、3d-f和4d,e在 Autodock 和 Autodock Vina 程序中的得分低于多奈哌齐(参考化合物)和重现性。这些衍生物是合成的,并在体外针对 AChE 和 BuChE 进行了评估。衍生物4d和4e对 AChE 的抑制效果最高,IC 50值分别为 3.2 ± 0.4 µM 和 4.8 ± 0.1 µM,而1a-c是 BuChE 的最佳抑制剂,IC 50值分别为 0.6、0.9 和 0.8 µM。动力学研究表明1a和4d分别是混合型AChE抑制剂和混合型和竞争型BuChE抑制剂。分子对接研究表明,1a和4d与AChE的外周阴离子和催化活性位点相互作用相似,而只有4d与BuChE催化三联体的Ser198发生氢键相互作用,证实了1a和4d的抑制模式在动力学研究中获得