The present invention provides a novel process for obtaining Bosentan, with few synthesis steps, by coupling the intermediate pyrimidine compound of formula I with the sulfonamide compound of formula II. The use of said efficient process prevents the use of hazardous chemicals and thus it is of considerable interest for obtaining Bosentan in a large industrial scale. The invention also refers to the novel intermediates of formula II and to a process for its production.
本发明提供了一种新颖的制备波生汀的方法,通过将式I的中间体
嘧啶化合物与式II的
磺胺化合物偶联,步骤较少。采用这种高效的方法可以避免使用危险
化学品,因此在大规模工业生产中获得波生汀具有相当大的兴趣。该发明还涉及到式II的新颖中间体以及其生产方法。