作者:Parra, Yonathan de J.、Andueza L, Felix D.、Ferrer M, Rosa E.、Colmenarez, Julia Bruno、Acosta, María E.、Charris, Jaime、Rosenthal, Philip J.、Gut, Jiri
DOI:10.17179/excli2019-1805
日期:——
vitro inhibitory activity against recombinant falcipain-2, where compound 5 showed considerable activity. However, the activity of free ligands against P. falciparum was increased by complexing with the Cu (II) metal ion. The values of the HOMO-LUMO energy gap of 3.847 eV (4a) and 3.932 eV (5a) were interpreted with high chemical activity and thus, could influence on biological activity. In both compounds
报道了化合物[(7-氯喹啉-4-基)氨基]苯乙酮(4、5)及其铜(II)配合物(4a,5a)的合成。使用多种光谱学和光谱学技术(例如FTIR,UV-vis,NMR,EPR,ESI-CID-MS2)对化合物进行表征。光谱结果表明,在两种配合物中,配体均充当螯合物种,通过喹啉环的环内氮配位金属,其通式根据其所处的相以两种方式表示:[Cu(L)2Cl2]固相表示[Cu(L)2] [2Cl]。铜(II)配合物的EPR研究表明,可能是扭曲的四面体配位几何。该结果通过在DFT / B3LYP方法中使用6-31G(d,p)基集计算得到的优化结构得到了证实。质子化的游离配体的片段化模式的特征在此扩展至低至m / z 43的片段,而对于配位化合物,则扩展至m / z 80和m / z 111的片段。确定了化合物的抗疟活性通过三个不同的测试:对恶性疟原虫(W2)体外生长的抑制活性,对血生成素形成的抑制(β-h