Design, synthesis, and antimicrobial evaluation of novel 1,2,4-trizaole thioether derivatives with a 1,3,4-thiadiazole skeleton
文献类型： 外文期刊
作者： Jiang, Yangming 1 ; An, Jiansong 2 ; Xia, Yu 1 ; Fei, Qiang 2 ; Wang, Daoping 1 ; Lu, Yang 3 ; Wu, Wenneng 2 ;
作者机构： 1.Guizhou Med Univ, State Key Lab Funct & Applicat Med Plants, Guiyang 550014, Peoples R China
2.Guiyang Univ, Sch Food Sci & Engn, Guiyang 550005, Peoples R China
3.Guizhou Inst Biotechnol, Guiyang 550006, Peoples R China
期刊名称：RSC ADVANCES （ 影响因子：4.6； 五年影响因子：4.3 ）
ISSN：
年卷期： 2025 年 15 卷 34 期
页码：
收录情况： SCI
摘要： The aim of this study was to design and synthesize 17 novel 1,2,4-triazole thioether derivatives containing 1,3,4-thiadiazole thioether. Bioactivity assays indicated that several target compounds exhibited moderate to good antifungal and antibacterial activities. Notably, compound 9d demonstrated significantly stronger antifungal activity against Trichoderma sp. in Morchella esculenta (TSM) and Mucor sp. in Dictyophora rubrovalvata (MSD), with EC50 values of 9.25 and 12.95 mu g mL-1, respectively, compared to the commercial fungicide pyrimethanil, which had EC50 values of 35.29 and 15.51 mu g mL-1. Furthermore, compound 9d found to have strong antibacterial activity against Pseudomonas syringae pv. actinidiae (PSA) in vitro, with an EC50 of 9.34 mu g mL-1, markedly superior to that of thiodiazole copper (81.74 mu g mL-1). Additionally, the in vivo anti-PSA assessment revealed therapeutic and protective activities at 200 mu g mL-1 of 59.39% and 79.33%, respectively, outperforming thiodiazole copper (38.91% and 67.64%, respectively). According to molecular docking simulations the interaction between compound 9d and FtsZ was mainly due to hydrogen bond formations with GLU-296, ARG-301, LYS-188, ASP-29 and GLY-30. This report suggests that these novel 1,2,4-triazole thioether derivatives featuring a 1,3,4-thiadiazole skeleton may effectively mitigate fungal and bacterial threats to plants.
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