“…1], which possess potent antioxidant, anti-inflammatory, anticancer and cholinesterase inhibitory activities. 4,[11][12][13][14] Particularly, as a novel organoselenium compound targeting thioredoxin reductase (TrxR), ethaselen has been reported to exhibit broad spectrum of antitumor effects with slight toxicity, and has now entered Phase I clinical trials in China. [4][5][6] 1,3,4-Thiadiazole is a privileged scaffold incorporated in many compounds presenting a wide range of pharmacological activities, such as antioxidant, 15,16) antibacterial, 17,18) antidepressant, 19,20) antidiabetic, 21,22) antifungal, 23,24) anticonvulsant, 25,26) antiinflammatory, 27,28) antileishmanial 29) and acetylcholinesterase inhibitory properties.…”