申请人:Knowa Pharmaceutical (Shanghai) Co. Ltd.
公开号:EP2305634A1
公开(公告)日:2011-04-06
The present invention relates to a novel preparation method of sulfonyl alkylamine and salts thereof. The method of present invention comprises steps of: adopting sulfonates containing a sulfone moiety as starring material and ammonia oz amine as substituting agent which reacts with the starting material to prepare for the products. Furthermore, the present invention provides a new intermediate 2-(N,N- dibenzylamino) ethyl methyl sulfone and salts thereof obtained from the above novel preparation method and their use. In addition, the present invention also provides a novel salt of 2-(anuno) ethyl methyl sulfone prepared using 2-(amine) ethyl methyl sulfone hydrochloride and the use of novel salt. The present invention is not only advantageous for reducing environmental pollution, but also could be used for mass fabrication of 2-(amino) ethyl methyl sulfone and the salts thereof, in addition, the present invention is advantageous for preparing for the highly purified 2-(amine) ethyl methyl sulfone hydrochloride.
本发明涉及一种新型磺酰基烷基胺及其盐的制备方法。本发明的方法包括以下步骤:采用含有磺酮基团的磺酸盐作为起始材料,以氨或胺作为取代试剂,与起始材料反应制备产物。此外,本发明还提供了一种新的中间体2-(N,N-二苯甲基氨基)乙基甲基磺酮及其盐,其是通过上述新型制备方法获得的,并且提供了使用该中间体的方法。此外,本发明还提供了一种新型的2-(胺基)乙基甲基磺酮盐,其是使用2-(胺基)乙基甲基磺酮盐酸盐制备的,并提供了该新型盐的使用方法。本发明不仅有利于减少环境污染,而且可用于大规模制备2-(胺基)乙基甲基磺酮及其盐,此外,本发明还有利于制备高纯度的2-(胺基)乙基甲基磺酮盐酸盐。