A process for the production of 2-alkyl-3-aroyl-5-nitrobenzofurans by acylation of 2-(2-hydroxy-5-nitrophenyl)-1-aryl-ethanones and subsequent treatment of the esters with combinations of bases and proton acids or Lewis acids. This process can be used for the production of Dronedarone. Furthermore, novel intermediates for the manufacture of Dronedarone are provided.
一种制备2-烷基-3-芳酰基-
5-硝基苯并呋喃的方法,通过对2-(2-羟基-5-
硝基苯基)-1-芳基-乙酮进行酰化反应,然后用碱和质子酸或
路易斯酸的组合处理酯。该方法可用于生产Dronedarone。此外,还提供了制造Dronedarone的新型中间体。