高等学校化学学报 ›› 2023, Vol. 44 ›› Issue (10): 20230179.doi: 10.7503/cjcu20230179

• 有机化学 • 上一篇    下一篇

新型螺环四氢喹啉衍生物的设计、合成及抑菌活性

陈伟(), 兰雨欣, 金彦西, 陈阳, 吴润, 储承文, 高焉凤   

  1. 西南交通大学生命科学与工程学院, 四川省天然药物仿生合成工程研究中心, 成都 610031
  • 收稿日期:2023-04-06 出版日期:2023-10-10 发布日期:2023-04-30
  • 通讯作者: 陈伟 E-mail:chenweicstq@163.com
  • 基金资助:
    国家自然科学基金(21702173);四川省科技计划项目(2021YJ0481)

Design, Synthesis and Antifungal Activity of Novel Spiro-tetrahydroquinoline Derivatives

CHEN Wei(), LAN Yuxin, JIN Yanxi, CHEN Yang, WU Run, CHU Chengwen, GAO Yanfeng   

  1. School of Life Science and Engineering,Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs,Southwest Jiaotong University,Chengdu 610031,China
  • Received:2023-04-06 Online:2023-10-10 Published:2023-04-30
  • Contact: CHEN Wei E-mail:chenweicstq@163.com
  • Supported by:
    the National Natural Science Foundation of China(21702173);the Science Technology Program of Sichuan Province, China(2021YJ0481)

摘要:

以天然的四氢喹啉生物碱和氢化中氮茚类化合物为先导, 结合螺环类化合物显著的生物活性, 通过合理的药效团拼接, 将巴比妥酸引入四氢喹啉母核, 设计并合成了12个结构新颖的螺环四氢喹啉衍生物(Ia~Il). 离体抑菌活性测试结果显示, 在50 mg/L的浓度下, 目标化合物Ia~Il对6种植物病原真菌具有中等的抑制活性, 其中化合物Ik对所有受试菌种的抑制率都大于51.0%, 化合物Il对玉米小斑病菌和西瓜炭疽病菌的抑制率分别为78.1%和77.8%, 与对照药百菌清相当. 初步构效关系研究表明, 螺环四氢喹啉衍生物具有抑菌潜力, 引入吡唑药效团可以增强抑菌活性和扩大抑菌谱.

关键词: 螺环四氢喹啉衍生物, 巴比妥酸, 设计合成, 抑菌活性

Abstract:

In an effort to develop novel fungicides, a series of spiro-tetrahydroquinoline derivatives containing a barbituric acid moiety was designed and synthesized based on the natural products tetrahydroquinoline alkaloids and hydrogenated indolizines. The chemical structures were confirmed by nuclear magnetic resonance(1H NMR and 13C NMR). In vitro antifungal activity showed that at 50 mg/L, all the targets showed moderate inhibition. Especially, compound Ik exhibited more than 51.0% inhibition on all the tested fungi. The inhibition rates of compound Il against Helminthosporium maydis and Colletotrichum lagenarium were 78.1% and 77.8%, respectively, which were as high as chlorothalonil. The preliminary structure-activity relationships showed that the spiro-tetrahydroquinoline skeleton had potential antifungal activity, and the introducing of pyrazole pharmacophore could enhance the antifungal effective and expand the antifungal spectrum. Thus, the findings of this study will contribute to the design of novel spiro-tetrahydroquinoline derivatives as antifungal agents to control phytopathogenic fungi in agriculture.

Key words: Spiro-tetrahydroquinoline derivative, Barbituric acid, Design and synthesis, Antifungal activity

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