Journal of Agricultural and Food Chemistry p. 7226 - 7234 (2020)
Update date:2022-08-30
Topics:
Chen, Shunhong
Dai, Ali
Guo, Shengxin
He, Feng
Luo, Dexia
Wu, Jian
Zhang, Renfeng
A series of novel α-ketoamide derivatives bearing a vanillin skeleton were designed and synthesized. Bioactivity tests on virus and bacteria were performed. The results indicated that some compounds exhibited excellent antitobacco mosaic virus (TMV) activities, such as compound 34 exhibited an inactivation activity of 90.1percent and curative activity of 51.8percent and compound 28 exhibited a curative activity of 54.8percent at 500 μg mL-1, which is equivalent to that of the commercial ningnanmycin (inactivation of 91.9percent and curative of 51.9percent). Moreover, the in vitro antibacterial activity test illustrated that compounds 2, 22, and 33 showed much higher activities than commercial thiodiazole copper, which could be used as lead compounds or potential candidates. The findings of transmission electron microscopy and molecular docking indicated that the synthesized compounds exhibited strong and significant binding affinity to the TMV coat protein and could obstruct the self-assembly and increment of TMV particles. This study revealed that α-ketoamide derivatives bearing a vanillin skeleton could be used as a novel potential pesticide for controlling the plant diseases.
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