Synthesis, Antiproliferative and Antioxidant Activity of 3-Mercapto-1,2,4-Triazole Derivatives as Combretastatin A-4 Analogues
作者:Sadiq Al-Mansury、Asim A. Balakit、Fatin Fadhel Alkazazz、Rana A. Ghaleb
DOI:10.1007/s11094-021-02459-0
日期:2021.9
Two series of 3-mercapto-1,2,4-triazole derivatives containing alkoxy substituents different in size and position were synthesized and their structures were characterized by FT-IR, 1H NMR, 13C NMR spectroscopy and elemental analysis. The synthesized compounds were assessed for their antiproliferative activity against colon cancer cell line (SW480). The results indicated that the size and position of the alkoxy group significantly influenced the antiproliferative activity. The highest cancer cell growth inhibition values were observed for the compounds containing 3,4,5-trimethoxyphenyl groups in their structures (57.74, 54.14 and 60.70% at 50 μM for compounds 5a, 12b and 14, respectively). The synthesized compounds were also subjected to DPPH protocol for evaluating the antioxidant activity. The results showed that all compounds had moderate to high levels of antioxidant capacity as compared to ascorbic acid as standard, the highest free radical scavenging capacity of 75% was observed for compound 4a at 50 μM.
两系列含有不同大小和位置的烷氧基取代基的3-巯基-1,2,4-三唑衍生物被合成,并通过FT-IR、1H NMR、13C NMR光谱和元素分析对其结构进行了表征。合成的化合物被评估了其对结肠癌细胞系(SW480)的抗增殖活性。结果表明,烷氧基的大小和位置对抗增殖活性有显著影响。含有3,4,5-三甲氧基苯基结构的化合物显示出最高的癌细胞生长抑制值(5a、12b和14在50 μM时分别为57.74%、54.14%和60.70%)。合成的化合物还进行了DPPH实验以评估抗氧化活性。结果显示,与标准的抗坏血酸相比,所有化合物的抗氧化能力均为中等至高水平,化合物4a在50 μM时的自由基清除能力最高,达75%。