1356536-09-8Relevant articles and documents
NOVEL PROCESS FOR THE PREPARATION OF DRONEDARONE
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, (2012/02/05)
The subject of the invention is a novel process for the preparation of N-[2-n-butyl-3-{4-[(3-di-n-butylamino)- propoxy]benzoyl}benzofuran-5-yl]-methanesulfonamide of formula (I), and pharmaceutically acceptable salts thereof characterized in that, the acyl group of the benzofuran derivative of the general formula (II), where R represents C 1-4 alkyl-, C1-4 alkoxy- or aryl group - is selectively cleaved and if desired, the resulting compound of formula I is transformed into its salt.