Chinese Journal of Organic Chemistry ›› 2023, Vol. 43 ›› Issue (2): 725-733.DOI: 10.6023/cjoc202207038 Previous Articles     Next Articles

含1,2,3,4-四氢异喹啉片段磺酰肼和酰肼类化合物的设计、合成及生物活性研究

徐欢, 吴鸿飞, 张晓鸣, 路星星, 孙腾达, 亓悦, 林誉凡, 杨新玲, 张莉, 凌云*()   

  1. 中国农业大学理学院 应用化学系 北京 100193
  • 收稿日期:2022-07-28 修回日期:2022-08-18 发布日期:2022-10-10
  • 基金资助:
    国家自然科学基金(22077137); 国家自然科学基金(21472236)

Design, Synthesis and Bioactivity of Sulfonyl Hydrazides and Hydrazides Containing Fragment 1,2,3,4-Tetrahydroisoquinoline

Huan Xu, Hongfei Wu, Xiaoming Zhang, Xingxing Lu, Tengda Sun, Yue Qi, Yufan Lin, Xinling Yang, Li Zhang, Yun Ling()   

  1. Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193
  • Received:2022-07-28 Revised:2022-08-18 Published:2022-10-10
  • Contact: *E-mail: lyun@cau.edu.cn
  • Supported by:
    National Natural Science Foundation of China(22077137); National Natural Science Foundation of China(21472236)

In order to find agricultural fungicide candidates with lassase as potential target, 14 unreported sulfonyl hydrazide and 9 hydrazide derivatives were designed and synthesized by replacing tetrahydroquinoline skeleton of the lead compound 4-methyl-N'-(1,2,3,4-tetrahydroquinoline-1-carbonothioyl)benzenesulfonohydrazide (4bg) with active fragment 1,2,3,4-tetra- hydro-isoquinoline. The structures of the target compounds were confirmed by 1H NMR, 13C NMR and HRMS. The in vitro bioassay showed that 2-methyl-N'-(1,2,3,4-tetrahydroisoquinoline-2-carbonothioyl)benzenesulfonohydrazide (4b) showed excellent fungicidal activity against V. Mali and S. sclerotiorum with EC50 values of 4.81 and 1.57 μg/mL, respectively, which were better than that of lead compound 4bg. In addition, 5-methyl-N'-(1,2,3,4-tetrahydroisoquinoline-2-carbonothioyl)pyra- zine-2-carbohydrazide (5i) showed good broad-spectrum fungicidal activity against V. Mali, S. sclerotiorum, B. cinerea, M. oryzae and F. graminearum with EC50 range of 12.88~28.65 μg/mL. Moreover, compounds 4b and 5i exhibited moderate laccase inhibitory activity (37.07%, 35.49%), which were similar to that of cysteine (43.10%) at 50 μg/mL. Furthermore, the binding modes of compounds 4b and 5i with laccase protein were simulated by molecular docking method, which provided guidance for further modification of compounds.

Key words: laccase inhibitor, 1,2,3,4-tetrahydroisoquinoline, (sulfonyl) hydrazide, fungicidal activity, molecular docking