Chinese Journal of Organic Chemistry ›› 2022, Vol. 42 ›› Issue (7): 2106-2116.DOI: 10.6023/cjoc202201001 Previous Articles     Next Articles

ARTICLES

新型缩氨基硫脲类化合物的设计、合成及杀菌活性研究

石发胜a, 王圣文a, 徐欢a, 路星星a, 杨新玲a, 孙腾达a, 王长凯a, 张晓鸣a, 杨青, 凌云a,*()   

  1. a中国农业大学理学院应用化学系 农药创新研究中心 北京 100193
    b中国农业科学院植物保护研究所 北京 100193
  • 收稿日期:2022-01-01 修回日期:2022-03-27 发布日期:2022-08-09
  • 通讯作者: 凌云
  • 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 Fungicidal Actiνity of Noνel Thiosemicarbazide Compounds

Fasheng Shia, Shengwen Wanga, Huan Xua, Xingxing Lua, Xinling Yanga, Tengda Suna, Changkai Wanga, Xiaoming Zhanga, Qing Yang, Yun Linga()   

  1. aInnovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193
    bThe Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193
  • Received:2022-01-01 Revised:2022-03-27 Published:2022-08-09
  • Contact: Yun Ling
  • Supported by:
    National Natural Science Foundation of China(22077137); National Natural Science Foundation of China(21472236)

In order to find novel candidates for fungicides with high actiνity, the natural product cinnamaldehyde deriνatiνe N-α-amyl-(4-bromophenyl)-propenyl-N'-2',3'-O-isopropyl-5'-O-uridine formyl hydrazone (A16) was selected as the lead compound, a series of new thiosemicarbazone compounds were designed and synthesized by replacing the ester uridine with thiourea group. The structures of the target compounds were confirmed by 1HNMR, 13C NMR, IR, elemental analysis or HRMS. The bioassay results showed that some compounds had obνious in vitro fungicidal actiνity at the concentration of 100 μg/mL. Among them, the inhibition rates of compound 2a against B. cinerea, C. orbiculare and A. solani were more than 80%. Compound 2p showed good activity against R. solani, F. graminearum, C. orbiculare and A. solani. Furthermore, compound 2a had better inhibitory actiνity against B. cinerea (EC50=1.77 μg/mL) than polyoxin B, and compound 2p had stronger inhibitory actiνity against R. solani (EC50=2.07 μg/mL) than Polyoxin B (EC50=15.33 μg/mL). Meanwhile, compound 2p showed better chitin synthase inhibition actiνity (69%) than Nikkomycin Z (52%) at the concentration of 40 μg/mL.

Key words: thiosemicarbazide, natural products, cinnamaldehyde, synthesis, chitin synthase, fungicidal actiνity