A sonochemical approach to 4-substituted pyrrolo[1,2-a]quinoxalines via Cu-catalyzed N-arylation followed by Wang resin/air promoted oxidative cyclization strategy
作者:Raviteja Chemboli、Bhuvan Tej Mandava、Unati Sai Kodali、Amit Kumar Taneja、Bhagya Tej Mandava、Oruganti Sesha Sri Chandana、Md. Shabana Sultana、Bharath Yarlagadda、K.R.S. Prasad、Mandava Venkata Basaveswara Rao、Manojit Pal
DOI:10.1016/j.tetlet.2024.154917
日期:2024.2
demonstrated. The methodology offers advantages such as shorter duration, use of eco-friendly energy and wider substrate scope. Further application of this sonochemical method was also demonstrated via Suzuki coupling of a bromo product. Some of the pyrrolo[1,2-a]quinoxalines showed encouraging (52–77 %) inhibition of SIRT1 in vitro (better than nicotinamide) and were identified as initial hits.
探索了4-取代的吡咯并[1,2- a ]喹喔啉框架来鉴定可能的 SIRT1 抑制剂。为了获得目标化合物,首次开发了通用的超声辅助两步方法,涉及铜催化的N -芳基化,然后是 Wang 树脂/空气促进的氧化环化策略。因此,2-碘苯胺与吡咯的CN偶联在第一步中得到1-(2-氨基苯基)吡咯衍生物,其与醛形成C N/C C键,得到所需产物。第二步在露天纯水中进行,并演示了 Wang 树脂催化剂的回收和再利用。该方法具有持续时间短、使用环保能源和更广泛的底物范围等优点。通过溴代产物的 Suzuki 偶联也证明了这种声化学方法的进一步应用。一些吡咯并[1,2- a ]喹喔啉类药物在体外对 SIRT1 表现出令人鼓舞的 (52-77%) 抑制作用(优于烟酰胺),并被确定为初始命中。