DNA cleavage and antimicrobial studies of 17-membered schiff base macrocyclic triazoles: synthesis and spectroscopic approach
作者:Udaykumar V. Kamble、Sangamesh A. Patil、Prema S. Badami
DOI:10.1007/s10847-010-9794-4
日期:2010.12
A novel series of 17-membered complexes [MLCl2] (M = Co2+, Ni2+ and Cu2+) have been synthesized with newly derived biologically active ligands (LI–LIV). These ligands were synthesized by the condensation of 3-subtituted-4-amino-5-hydrazino-1,2,4-triazole with bis(phthalaldehyde)ethylenediamine precursor. The structure of the complexes has been proposed by elemental analyses, IR, EPR, electronic spectral studies, conductivity, magnetic, thermal and electrochemical studies. All the complexes are soluble in DMF and DMSO and are non-electrolytes. All these Schiff bases and their complexes have been screened for their antibacterial (Escherichia coli, Staphylococus aureus, Salmonella typhi, Pseudomonas aeruginosa) and antifungal activities (Aspergillus niger, Aspergillus flavus and Cladosporium) by the Agar and Potato dextrose agar diffusion method. The DNA cleavage study was done by Agarose gel electrophoresis technique.
我们用新衍生的生物活性配体(LI-LIV)合成了一系列新型的 17 元络合物 [MLCl2](M = Co2+、Ni2+ 和 Cu2+)。这些配体是通过 3-取代-4-氨基-5-肼基-1,2,4-三唑与双(邻苯二甲酸)乙二胺前体缩合合成的。通过元素分析、红外光谱、EPR、电子光谱研究、电导率、磁性、热和电化学研究,提出了这些配合物的结构。所有络合物都能溶于 DMF 和 DMSO,并且是非电解质。通过琼脂和马铃薯葡萄糖琼脂扩散法,对所有这些希夫碱及其复合物进行了抗菌(大肠杆菌、金黄色葡萄球菌、伤寒沙门氏菌和绿脓杆菌)和抗真菌(黑曲霉、黄曲霉和克拉多孢霉)活性筛选。DNA 裂解研究是通过琼脂糖凝胶电泳技术进行的。