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合成,抗真菌活性和3d-QSAR研究基于L-carvone的pyrazole-oxime ester化合物
Xinyan Liu1,2, Wengui Duan1,2, Guishan Lin1,2
1School of Chemistry and Chemical Engineering, Guangxi University, Nanning, P. R. China.
Natural product research
|September 16, 2024
概括
新型L-carvone衍生品的pyrazole-oxime esters被合成并测试其抗真菌活性. 化合物6e显示出作为抗植物真菌的主要抗真菌剂的显著潜力.
科学领域:
- 药用化学 医学化学
- 自然产品的合成自然产品的合成
- 农业化学 农业化学
背景情况:
- 自然产品为开发生物活性化合物提供了多功能支架.
- 探索新型抗真菌剂对于作物保护至关重要.
- L-carvone 作为合成新化学实体的有价值的起始材料.
研究的目的:
- 为了合成和表征新的基于L-carvone的pyrazole-oxime ester化合物.
- 评估合成化合物对植物病原菌的体外抗真菌活性.
- 研究这些新型化合物的结构-活性关系 (SARs).
主要方法:
- 合成21个未报告的基于L-carvone的pyrazole-oxime (6a-6u) 的合成.
- 使用FT-IR,1H NMR,13C NMR和HRMS进行结构性表征.
- 在实验室中对8种植物真菌进行50 mg/L的抗真菌生物活性测试.
- 建立用于SAR分析的3D-QSAR模型.
主要成果:
- 所有合成的化合物都对测试的植物真菌表现出抗真菌活性.
- 化合物6e (m-Cl) 和6c (m-F) 显示出对Physalospora piricola的强烈抑制 (分别为88.3%和83.9%).
- 化合物6e和6c的活性超过了阳性对照物,甲.
- 化合物6e被确定为进一步开发的有希望的化合物.
结论:
- 基于L-carvone的pyrazole-oxime Ester是天然产品衍生抗真菌剂的一个有前途的类别.
- 化合物6e显示出作为农业应用的新型抗真菌剂的巨大潜力.
- 已建立的3D-QSAR模型为SARs提供了洞察力,指导了未来的优化工作.
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