申请人:SANOFI
公开号:US20130131358A1
公开(公告)日:2013-05-23
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 wherein the acyl group of the benzofuran derivative of the general formula II:
where R represents C
1-4
alkyl-, C
1-4
alkoxy- or aryl group, is selectively cleaved and if desired, the resulting compound of formula I is transformed into its salt.
本发明的主题是一种制备N-[2-正丁基-3-4-[(3-二正丁基氨基)丙氧基]苯甲酰}苯并呋喃-5-基]-甲烷磺酰胺I的新工艺以及其药学上可接受的盐,其中苯并呋喃衍生物的酰基通式II如下:
其中R代表C1-4烷基、C1-4烷氧基或芳基,可被选择性地断裂,并且如果需要,化合物I的结果化合物可以转化为其盐。