Synthesis, ($E)$/($Z)$-isomerization, and DNA binding, antibacterial, and antifungal activities of novel oximes and $O$-substituted oxime ethers
作者:Hatice BAŞPINAR KÜÇÜK、Ayşe Sergüzel YUSUFOĞLU、Leyla AÇIK、Betül AYDIN、Leyla ARSLAN
DOI:10.3906/kim-1604-2
日期:——
A series of novel positional oximes (2a-2d), $O$-methyl oxime ethers (3a-3d), and $O$-benzyl oxime ethers (4a-4d) were synthesized in high yields starting from their corresponding methyl 3-, 4-, 6-, and 13-keto tetradecanoates. The synthesized compounds were characterized by $^1}$H NMR, $^13}$C NMR, FT-IR, mass, and elemental analyses for their structures and $(E)$/$(Z)$ isomerizations. Their DNA binding abilities were investigated in vitro by agarose gel electrophoresis. The antibacterial and antifungal activities were tested also in vitro against eleven bacterial strains and three fungal strains. The relationship between the structure and the mentioned biological activities was discussed. Compound 2a showed good antibacterial activity against five types of bacteria. Compounds 2b, 2c, 2d, and 4d were effective against several microorganisms. Among these, 2a showed the best DNA binding, antibacterial, and antifungal activities. Therefore, 2a can be a pro-drug as an anticancer, antibacterial, and antifungal agent.
从相应的 3-、4-、6-和 13-酮基十四酸甲酯开始,高产率合成了一系列新型位置肟(2a-2d)、$O$-甲基肟醚(3a-3d)和$O$-苄基肟醚(4a-4d)。通过^1}$H NMR、^13}$C NMR、傅立叶变换红外光谱、质量和元素分析,对合成化合物的结构和$(E)$/$(Z)$异构化进行了表征。通过琼脂糖凝胶电泳对它们的 DNA 结合能力进行了体外研究。此外,还对 11 种细菌菌株和 3 种真菌菌株的抗菌和抗真菌活性进行了体外测试。讨论了结构与上述生物活性之间的关系。化合物 2a 对五种细菌具有良好的抗菌活性。化合物 2b、2c、2d 和 4d 对多种微生物有效。其中,2a 的 DNA 结合、抗菌和抗真菌活性最好。因此,2a 可以作为抗癌、抗菌和抗真菌剂的原药。