Process for the preparation of 2,5-bis-(2,2,2-trifluoroethoxy)-n-(2-piperidyl-methyl)-benzamide (flecanide)

摘要

Process for the synthesis of FLECAINIDE comprising the reaction between 2,5-dihydroxybenzoic acid with trifluoroethanol perfluorobutanesulphonate to give the intermediate trifluoroethanol 2,5-bis-trifluoroethoxybenzoate, the reaction of said intermediate with 2-aminomethylpiperidine to give FLECAINIDE.