Chinese Journal of Organic Chemistry ›› 2021, Vol. 41 ›› Issue (8): 3303-3311.DOI: 10.6023/cjoc202101045 Previous Articles     Next Articles



何凤, 郭声鑫, 代阿丽, 张仁凤, 吴剑*()   

  1. 贵州大学绿色农药与农业生物工程国家重点实验室培育基地 教育部绿色农药与农业生物工程重点实验室 贵阳 550025
  • 收稿日期:2021-01-26 修回日期:2021-03-15 发布日期:2021-05-25
  • 通讯作者: 吴剑
  • 基金资助:
    国家自然科学基金(21762012); 国家自然科学基金(32072445); 国家自然科学基金(21562012); 高等学校学科创新引智计划(111 Program, No. D20023); 贵州省科技技术基金([2017]1402); 及贵州省科技技术基金([2017]5788)

Synthesis, Characterization, and Biological Activity of Novel Amide Derivatives Containing Trifluoromethylpyridine Moieties

Feng He, Shengxin Guo, Ali Dai, Renfeng Zhang, Jian Wu()   

  1. State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025
  • Received:2021-01-26 Revised:2021-03-15 Published:2021-05-25
  • Contact: Jian Wu
  • Supported by:
    National Natural Science Foundation of China(21762012); National Natural Science Foundation of China(32072445); National Natural Science Foundation of China(21562012); Program of Introducing Talents to Chinese Universities(111 Program, No. D20023); Science & Technology Planning Project of Guizhou Province([2017]1402); Science & Technology Planning Project of Guizhou Province([2017]5788)

A series of novel trifluoromethylpyridine amide derivatives were synthesized and evaluated in vitro for their antibacterial activity against Xanthomonas oryzae pv. oryzae (Xoo), Xanthomonas axonopodis pv. citri (Xac), and Ralstonia solanacearum, and insecticidal activity against Plutella xylostella. Some of the compounds showed promising antibacterial activity. In particular, the half maximal effective concentration (EC50) of 2-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)oxy)-N-(4-fluoro- 2-methylphenyl)acetamide (6d) was 54.1 mg•L–1 against Xoo, which was slightly lower than the bismerthiazol (59.6 mg•L–1) and thiodiazole copper (86.3 mg•L–1) positive controls. 2-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)oxy)-N-(4-fluoro-3- (trifluoromethyl)phenyl)acetamide (6h) and 2-((3-chloro-5-(trifluoro-methyl)pyridin-2-yl)oxy)-N-(5,6-dichloropyridin-3-yl)- acetamide (6z) exhibited much higher activity against Xac (EC50 51.2 and 60.7 mg•L–1, respectively) than bismerthiazol (76.3 mg•L–1) and thiodiazole copper (101.7 mg•L–1). N-(2-Chloro-4-fluorophenyl)-2-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)- oxy)acetamide (6e) showed good bioactivity against R. solanacearum with an EC50 (74.9 mg•L–1) lower than thiodiazole copper (79.0 mg•L–1). 6e and 2-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)oxy)-N-(3-isopropylphenyl)acetamide (6k) at 500 mg• L–1 exhibited moderate insecticidal activity against P. xylostella.

Key words: trifluoromethylpyridine, amide derivatives, synthesis, antibacterial activity, insecticidal activity