高等学校化学学报 ›› 2024, Vol. 45 ›› Issue (10): 20240369.doi: 10.7503/cjcu20240369

• 有机化学 • 上一篇    

吡嗪酰胺类似物的设计、 合成及杀菌活性

王刚, 梁爽, 单忠刚, 英君伍, 吕亮, 李斌, 杨辉斌()   

  1. 沈阳中化农药化工研发有限公司, 新农药创制与开发国家重点实验室, 农药国家工程研究中心, 沈阳 110021
  • 收稿日期:2024-07-28 出版日期:2024-10-10 发布日期:2024-08-21
  • 通讯作者: 杨辉斌 E-mail:yanghuibin@yangnongchem.com
  • 基金资助:
    “十二五”国家科技支撑计划项目(2011BAE06B01-05)

Design, Synthesis and Fungicidal Activity of Pyrazinamide Analogs

WANG Gang, LIANG Shuang, SHAN Zhonggang, YING Junwu, LYU Liang, LI Bin, YANG Huibin()   

  1. National Engineering Research Center of Pesticide,State Key Laboratory of the Discovery and Development of Novel Pesticide,Shenyang Sinochem Agrochemicals R&D Co. ,Ltd. ,Shenyang 110021,China
  • Received:2024-07-28 Online:2024-10-10 Published:2024-08-21
  • Contact: YANG Huibin E-mail:yanghuibin@yangnongchem.com
  • Supported by:
    the “12th Five Year Plan” National Science and Technology Support Project, China(2011BAE06B01-05)

摘要:

以取代吡嗪酸和2-甲基-3-硝基苯酚为原料, 经4步反应合成了16个吡嗪酰胺类似物(化合物1~16), 其结构经核磁共振波谱(1H NMR和13C NMR)及高分辨质谱(HRMS)确证. 杀菌活性测试结果表明, 吡嗪酰胺类似物浓度为6.25 mg/L时对玉米锈病具有优异的杀菌活性, 其中化合物4, 5, 7, 8, 1516对玉米锈病的杀菌活性为100%. 分子对接模拟结果显示, 化合物16通过氢键与琥珀酸脱氢酶(SDH)的TRP-173相互作用, 这可以解释化合物16与目标蛋白之间可能的作用机制. 研究结果表明, 化合物16是一种具有潜在前景的杀菌剂候选物, 为进一步研究提供了参考.

关键词: 吡嗪酰胺, 合成, 杀菌活性, 分子对接

Abstract:

Pyraziflumid was a novel pyrazinamide analog fungicide developed by Nihon Nohyaku Co. In this work, 16 pyrazinamide analogs were synthesized using substituted pyrazine acid and 2-methyl-3-nitrophenol as initial materials through 4 steps. The structures of the target compounds were confirmed by nuclear magnetic resonance (1H NMR, 13C NMR) and high resolution mass spectrometer(HRMS). The results of fungicidal activity at greenhouse showed that pyrazinamide analogs had excellent fungicidal activities against corn rust at 6.25 mg/L. Among them, the fungicidal activities of compounds 457815 and 16 against corn rust at 6.25 mg/L were 100%. Molecular docking simulations revealed that compound 16 interacted with TRP-173 of succinate dehydrogenase(SDH) through hydrogen bonding, which could explain the probable mechanism of action between compound 16 and the target protein. These results indicated that compound 16 might be a promising fungicide candidate and provide valuable reference for further investigation.

Key words: Pyrazinamide, Synthesis, Fungicidal activity, Molecular docking

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