申请人:Winter Eric
公开号:US20090247781A1
公开(公告)日:2009-10-01
The present invention relates to an improved process for the preparation of substituted 2-(4-carbonylmethoxy-optionally 2,5-disubstituted-phenyl-acetaldehydes, in particular 2-(4-alkoxycarbonylmethoxy-optionally 2,5-disubstituted-phenyl)-acetaldehydes and their use in the synthesis of optionally substituted 2-[4-[2-[[-2-hydroxy-2-(4-hydroxyphenyl)-
1
-methylethyl]-amino]ethyl]-optionally 2,5-disubstituted-phenoxy]acetic acid derivatives or the salts thereof, which may be used as pharmaceutically active substances.
本发明涉及一种改进的方法,用于制备取代的2-(4-羰基甲氧基-可选2,5-二取代苯基)-乙醛,特别是2-(4-烷氧羰基甲氧基-可选2,5-二取代苯基)-乙醛及其在合成可选取代的2-[4-[2-[[-2-羟基-2-(4-羟基苯基)-1-甲基乙基]-氨基]乙基]-可选2,5-二取代苯氧基]乙酸衍生物或其盐中的应用,这些衍生物可以用作药物活性物质。