This invention relates to a process for the preparation of N-[2-n-butyl-3-4-[(3- dibutylamino)-propoxy]-benzoyl} - 1-benzofuran-5-yl]-methane-sulfonamide of formula (I) and its pharmaceutically acceptable salts, according to one of the methylsulfonyl groups of the 2-n-butyl-3-[(di-n-butylamino-3-propoxy)-benzoyl]-5- bis-(methylsulfonamido)-benzofuran of formula (II) is selectively cleaved and if desired, the resulting compound of formula (I) is transformed into its salt.
本发明涉及一种制备N-[2-正丁基-3-4-[(3-二丁基
氨基)-丙氧基]-苯甲酰}-1-
苯并呋喃-5-基]-
甲烷磺酰胺(I式)及其药学上可接受的盐的方法,其中根据式(II)的2-正丁基-3-[(二正丁基
氨基)-3-丙氧基]-苯甲酰-5-双(甲磺酰
氨基)-
苯并呋喃中的其中一个甲磺酰基被选择性地裂解,如果需要,则将所得的化合物转化为其盐的方法。