申请人:Friesz Antal
公开号:US20140081035A1
公开(公告)日:2014-03-20
The invention relates to a novel process for preparation of N-[2-n-butyl-3-[4-[3-(di-n-butylamino)-propoxy]-benzoyl]-benzofuran-5-yl]methanesulfonamide (I) and pharmaceutical acceptable salts thereof, where a salt of (5-amino-2-butyl-1-benzofuran-3-yl) 4-[3-(di-n-butylamino)propoxy]phenyl}methanone of formula (II)—where A is a mono- or dibasic acid forming an acid addition salt with the compound of formula (II), n is 1 if A is dibasic acid and n is 1 or 2 if A is a monobasic acid—is reacted with a mesylating reagent in a heterogen reaction, if desired, in the presence of a phase transfer catalyst. The invention also relates to the novel salts of compound of formula (II), for the preparation thereof and their use in the preparation of dronedarone.
本发明涉及一种新型制备N-[2-正丁基-3-[4-[3-(二正丁基氨基)丙氧基]-苯甲酰基]-苯并呋喃-5-基]甲烷磺酰胺(I)及其药用可接受的盐的方法,其中式(II)的(5-氨基-2-正丁基-1-苯并呋喃-3-基) [4-[3-(二正丁基氨基)丙氧基]苯基]甲酮}的盐 - 其中A是与式(II)化合物形成酸加成盐的单酸或二元酸,如果A是二元酸,则n为1,如果A是单酸,则n为1或2 - 与甲烷磺酰化试剂在杂化反应中反应,如果需要,在相转移催化剂的存在下。本发明还涉及式(II)化合物的新型盐,其制备方法及其在制备多吡酮中的应用。