AbstractWe aimed to design and synthesize 3‐methylenechroman‐2‐one derivatives and test their potency as TrxR1 inhibitors. A convenient and easy‐to‐handle synthetic approach to 3‐methylenechroman‐2‐ones was developed. The in vitro inhibitory activity towards recombinant TrxR1 was determined for the obtained compounds. The most potent representatives exhibited submicromolar TrxR1 inhibition activity (IC50 varied from 0.29 μM to 10.2 μM). Structure‐activity relationship analysis indicates the beneficial role of the substituent at the position C‐6 of the core of chroman‐2‐one, where the derivatives containing halogen are the most active among the scope of compounds obtained. The most potent TrxR1 inhibitor of the series was further examined in in vitro cell‐based assays to assess cytotoxic effects on various cancer cell lines, and to evaluate their influence on cell apoptosis.
摘要 我们旨在设计和合成 3-亚甲基苯并二氢吡喃-2-酮衍生物,并测试其作为 TrxR1 抑制剂的效力。我们开发了一种简便易行的 3-亚甲基苯并二氢吡喃-2-酮的合成方法。测定了所获化合物对重组 TrxR1 的体外抑制活性。最有效的代表化合物表现出亚摩尔级的 TrxR1 抑制活性(IC50 从 0.29 μM 到 10.2 μM 不等)。结构-活性关系分析表明,色满-2-酮核心 C-6 位上的取代基起到了有益的作用,其中含卤素的衍生物在所获得的化合物中活性最高。该系列中最有效的 TrxR1 抑制剂在体外细胞试验中进行了进一步检测,以评估其对各种癌细胞株的细胞毒性作用,并评估其对细胞凋亡的影响。