Synthesis of 1,2,3-Thiadiazole and Thiazole-Based Strobilurins as Potent Fungicide Candidates
作者:Lai Chen、Yu-Jie Zhu、Zhi-Jin Fan、Xiao-Feng Guo、Zhi-Ming Zhang、Jing-Hua Xu、Ying-Qi Song、Morzherin Y. Yurievich、Nataliya P. Belskaya、Vasiliy A. Bakulev
DOI:10.1021/acs.jafc.6b05128
日期:2017.2.1
Strobilurin fungicides play a crucial role in protecting plants against different pathogens and securing food supplies. A series of 1,2,3-thiadiazole and thiazole-based strobilurins were rationally designed, synthesized, characterized, and tested against various fungi. Introduction of 1,2,3-thiadiazole greatly improved the fungicidal activity of the target molecules. Compounds 8a, 8c, 8d, and 10i exhibited
Strobilurin杀菌剂在保护植物免受各种病原体侵害和确保食物供应方面起着至关重要的作用。合理设计,合成,表征和测试了一系列基于1,2,3-噻二唑和噻唑的Strobilurins,并针对各种真菌进行了测试。引入1,2,3-噻二唑极大地提高了目标分子的杀菌活性。化合物8a,8c,8d和10i表现出相对广谱的杀真菌活性。化合物8a对玉米赤霉菌,菌核盘菌和谷类根瘤菌表现出优异的活性,其有效浓度为中值(EC 50)分别为2.68、0.44和0.01μg/ mL; 它的活性比阳性对照的恩斯特布林,克雷索辛-甲基和嘧菌酯的EC 50为0.06至15.12μg/ mL的活性高得多。化合物的可比较的或更好的杀真菌效力8A与嘧菌酯和肟菌酯对抗相比白粉病和Pseudoperonspera霜霉病黄瓜字段在相同施用剂量进行了验证。因此,化合物8a是有前途的杀真菌剂,值得进一步开发。