A process for the production of Dronedarone intermediates of the formula (I), by acylation of 2-(2-hydroxy-5-nitrophenyl)-1-(4-methoxyphenyl)-ethanone, subsequent treatment of the ester with bases and a zeolite (alumosilicate) catalyst and optional subsequent demethylation. This process can be used for the production of Dronedarone.
一种生产Dronedarone中间体的方法,通过对2-(2-羟基-5-
硝基苯基)-1-(4-
甲氧基苯基)-乙酮进行酰化,随后用碱和
沸石(铝
硅酸盐)催化剂处理酯,并可选择性进行去甲基化。该方法可用于生产Dronedarone。