Synthesis of tacrine-lophine hybrids via one-pot four component reaction and biological evaluation as acetyl- and butyrylcholinesterase inhibitors
作者:Jessie Sobieski da Costa、João Paulo Bizarro Lopes、Dennis Russowsky、Cesar Liberato Petzhold、Antonio César de Amorim Borges、Marco Antonio Ceschi、Eduardo Konrath、Cristiane Batassini、Paula Santana Lunardi、Carlos Alberto Saraiva Gonçalves
DOI:10.1016/j.ejmech.2013.01.029
日期:2013.4
A novel series of tacrine-lophine hybrids was synthesized and tested for their ability to inhibit acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE) with IC50 in the nanomolar concentration scale. The key step is the one-pot four component condensation reaction of 9-aminoalkylamino-1,2,3,4-tetrahydroacridines, benzil, different substituted aromatic aldehydes and NH4OAc, using InCl3 as the
Photoactive homomolecular bis(n)-Lophine dyads: Multicomponent synthesis, photophysical properties, theoretical investigation, docking and interaction studies with biomacromolecules
作者:Viktor Saraiva Câmara、Otávio Augusto Chaves、Bruno Bercini de Araújo、Paulo Fernando Bruno Gonçalves、Bernardo Almeida Iglesias、Marco Antônio Ceschi、Fabiano Severo Rodembusch
DOI:10.1016/j.molliq.2021.118084
日期:2022.3
This work reports the synthesis of four homomolecular bis(n)-Lophines dyads achieved by a one-pot four component reaction. The dyads show absorption maxima below 300 nm and present intense fluorescence emission, with large Stokes shift, around 380 nm. Intercalation phenomenon and hydrophobic forces can be predicted for dyads, according to the results observed by the analysis via UV-Vis and AO competition
这项工作报告了通过一锅四组分反应合成四种同分子双 (n)-Lophines 二元组。二元组显示出低于 300 nm 的吸收最大值并呈现强烈的荧光发射,在 380 nm 附近具有大的斯托克斯位移。根据通过发射荧光技术通过 UV-Vis 和 AO 竞争测定分析观察到的结果,可以预测二元组的嵌入现象和疏水力。对于 HSA/BSA 结合分析,可能会发生色氨酸残基的淬灭和色氨酸结合位点周围的构象变化。分子对接结果表明,所有二元组都可以通过插入小沟的过程与 DNA 链相互作用,而 HSA 和 BSA 的位点 I 和 III 被认为是主要的结合口袋,加强实验静态荧光猝灭机制。还使用密度泛函理论 (DFT) 和瞬态密度泛函理论 (TD-DFT) 研究了这些化合物。wB97XD 与用于几何优化的 cc-pVDZ/cc-pVDZ 基组和用于垂直跃迁能量的 cc-pVDZ/jun-cc-pVDZ 基组一起使用。在所有计算中都考虑了