304662-71-3Relevant articles and documents
Design, Synthesis, Antibacterial Activity, and Mechanisms of Novel 1,3,4-Thiadiazole Derivatives Containing an Amide Moiety
Wu, Zhibing,Shi, Jin,Chen, Jixiang,Hu, Deyu,Song, Baoan
, p. 8660 - 8670 (2021/08/20)
To discover novel antibacterial agents, a series of novel 1,3,4-thiadiazole derivatives containing an amide moiety were designed and synthesized, and their antibacterial activities were tested. Compound 30 was designed and synthesized according to the CoMFA model. Compound 30 exhibited higher antibacterial activities against Xanthomonas oryzae pv. oryzicola and Xanthomonas oryzae pv. oryzae, with EC50 values of 2.1 and 1.8 mg/L, respectively, which were superior to those of thiodiazole copper (99.6 and 92.5 mg/L). The protective and curative activities of compound 30 against rice bacterial leaf blight were 51.3 and 46.1%, respectively, which were better than those of thiodiazole copper (37.8 and 38.5%). The protective and curative activities of compound 30 against rice bacterial leaf streak were 45.9 and 40.5%, respectively, which were better than those of thiodiazole copper (36.2 and 31.1%). In addition, the protective activity of compound 30 against rice bacterial leaf streak was related to increased activities of related defense enzymes and upregulated the differentially expressed proteins of the glycolysis/gluconeogenesis pathway.
Synthesis and biological evaluation of novel 1,3,4-thiadiazole derivatives incorporating benzisoselenazolone scaffold as potential antitumor agents
Fu, Xiaoyun,Li, Sha,Jing, Fen,Wang, Xuefeng,Li, Baolin,Zhao, Jijun,Liu, Yuming,Chen, Baoquan
, p. 631 - 639 (2016/10/18)
Background: Based on the biological signi-cance of benzisoselenazolone and 1,3,4-thiadiazole, a series of novel 1,3,4-thiadiazole derivatives incorporating benzisoselenazolone scaffold were designed and synthesized with ebselen as a lead compound. Methods: Meanwhile, their in vitro antitumor activities were evaluated against SMMC-7721, MCF-7 and A549 human cancer cell lines by CCK-8 assay. Results: The preliminary bioassay results demonstrated that all tested compounds 4a-q showed potent antitumor activities, and some compounds exhibited better effects than positive control ethaselen and 5-fluorouracil (5-FU) against various cancer cell lines. Furthermore, compounds 4b and 4m showed significant antitumor activities against SMMC-7721 cells with IC50 values of 1.89 and 1.89 μM, respectively. Compounds 4c and 4n displayed highly effective biological activities against MCF-7 cells with IC50 values of 2.88 and 2.28 μM, respectively. Compound 4i showed the best inhibitory effect against A549 cells with IC50 value of 1.76 μM. Conclusion: The pharmacological results suggest that the substituent groups of phenyl ring on the 1,3,4-thiadiazole are vital for modulating antitumor activities against various cancer cell lines.