Oxadiazole-substituted naphtho[2,3- b ]thiophene-4,9-diones as potent inhibitors of keratinocyte hyperproliferation. Structure−activity relationships of the tricyclic quinone skeleton and the oxadiazole substituent
作者:Atila Basoglu、Simone Dirkmann、Nader Zahedi Golpayegani、Silke Vortherms、Jan Tentrop、Dominica Nowottnik、Helge Prinz、Roland Fröhlich、Klaus Müller
DOI:10.1016/j.ejmech.2017.03.084
日期:2017.7
3-b]thiophene-4,9-diones were synthesized in which the tricyclic quinone skeleton was systematically replaced with simpler moieties, such as structures with fewer rings and open-chain forms, while the oxadiazole ring was maintained. In addition, variants of the original 1,2,4-oxadiazole ring were explored. Overall, the complete three-ring quinone was essential for potent suppression of human keratinocyte
合成了恶二唑取代的萘并[2,3-b]噻吩-4,9-二酮的新型类似物,其中三环醌骨架被较简单的部分系统取代,例如结构较少的环和开链形式,而恶二唑环得以维持。另外,探索了原始的1,2,4-恶二唑环的变体。总的来说,完整的三环醌对于有效抑制人角质形成细胞的过度增殖至关重要,而类似的蒽醌则没有活性。而且,恶二唑环本身不足以引起活性。但是,恶二唑环中杂原子位置的重排导致了高效抑制剂,化合物24b是该系列中最有效的类似物,在纳摩尔范围内显示出IC50。此外,