设计,合成和评估活性基结构1,2,4-三醇含库马林的杀菌活性
You Lv1,2, Kun Li2,3, Liu Lei4
1College of Agricultural and Biological Engineering, Heze University, No. 2269, Daxue Road, Mudan District, Heze, Shandong 274015, P. R. China.
Journal of agricultural and food chemistry
|November 26, 2024
概括
新的杀菌剂是使用碎片拼接和分子对接开发的. 化合物7e对关键的植物病原体表现出增强的活性,并抑制了关键的真菌酶,证明了一种有前途的新农业化学发现技术.
科学领域:
- 农业化学研究农业化学研究.
- 药品化学 药品化学 是一个
- 计算化学是一种计算化学.
背景情况:
- 碎片拼接和分子对接是农业化学设计中的关键策略.
- 之前的研究已经确定了4-...,3,4-dichloroisothiazole) -7-hydroxycumarins (化合物1a和1b) 作为潜在的杀菌剂.
- 1,2,4-三部分是一种已知的生物活性基结构.
研究的目的:
- 设计和合成包含1,2,4-三基结构的新氨酸衍生物.
- 评估合成化合物的体外杀菌活性.
- 用计算方法研究结构-活动关系.
主要方法:
- 碎片拼接和分子对接用于合理的药物设计.
- 新型库马林衍生物的化学合成.
- 在体外杀菌生物测试针对植物病原菌.
- 酶抑制试验的目标是Fusarium graminearum 14-α脱甲基酶.
- 计算研究包括密度功能理论 (DFT),分子动力学 (MD) 和分子力学/Poisson-Boltzmann表面积 (MM/PBSA).
主要成果:
- 与化合物1b相比,化合物7e对*Botrytis cinerea*,*Cercospora arachidicola*和*Sclerotinia sclerotiorum*表现出优异的杀菌活性.
- 化合物7e对*Fusarium graminearum*表现出显著的活性.
- 化合物7e比商业真菌杀菌剂flutriafol.显示出更强大的抑制F. graminearum14-α脱甲基酶.
- 基于其分子结构的计算分析为观察到的化合物7e活性提供了合理的解释.
结论:
- 1,2,4-triazole和氨酸的碎片拼接是发现新型真菌杀菌剂的有效策略.
- 化合物7e是作为杀菌剂进一步开发的有希望的候选物.
- 综合计算和实验方法加速了新农业化学品的发现.
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