Design, synthesis, and bioactivity studies of chalcone derivatives containing [1,2,4]-triazole-[4,3-a]-pyridine
作者:Nian Zhang、Wei Zeng、Zhiling Sun、Qing Zhou、Kaini Meng、Yuzhi Hu、Yishan Qin、Wei Xue
DOI:10.1016/j.fitote.2023.105739
日期:2024.1
In this study, 30 chalcone derivatives containing [1,2,4]-triazole-[4,3-a]-pyridine were designed and synthesized. The results of antibacterial activity showed that EC50 values of N26 against Xoo, Pcb was 36.41, 38.53 μg/mL, respectively, which were better than those of thiodiazole copper, whose EC50 values were 60.62, 106.75 μg/mL, respectively. The bacterial inhibitory activity of N26 against Xoo
本研究设计并合成了30种含[1,2,4]-三唑-[4,3-a]-吡啶的查耳酮衍生物。抗菌活性结果表明, N26对Xoo 、 Pcb的EC 50值分别为36.41、38.53 μg/mL,优于噻二唑铜的EC 50值分别为60.62、106.75 μg/mL。通过SEM验证了N26对Xoo的细菌抑制活性。初步探讨了N26与Xoo的抗菌机制,实验结果表明,当药物浓度为100 mg/L时, N26对Xoo具有良好的细胞膜通透性,可抑制EPS含量和胞外酶含量的产生,从而破坏Xoo的细胞膜通透性。 Xoo生物膜的完整性达到抑制Xoo的效果。 N26在200mg/L时对马铃薯采后体内病斑具有保护和抑制作用。采用半叶干斑法测定N1 - N30抗TMV活性。 N22的治疗活性和保护活性的EC 50值分别为77.64和81.55 μg/mL,优于NNM(分别为294.27、175.88 μg/mL)。 MST