| abstract |
Subject of the present invention R is C 1 -4 alkyl -, C 1 -4 alkoxy-aryl group or if the selective cleavage of the acyl group of a benzofuran derivative of formula II, is required, a compound thereof of formula I N- [2-n-butyl-3- {4-[(3-di-n-butylamino) -propoxy] benzoyl} benzofuran-5-yl], characterized in that it is converted to a salt. Methanesulfonamide and pharmaceutically acceptable salts thereof. Formula I (II) |