申请人:KANEKA CORPORATION
公开号:EP1367053A1
公开(公告)日:2003-12-03
The present invention has an object to provide a process for easily producing optically active N-aryl-1-amino-2-propanol derivatives which are of value as pharmaceutical intermediates from inexpensive starting materials.
The above object can be attained by producing an optically active N-aryl-1-amino-2-propanol derivative by the process which comprises reacting an optically active lactate derivative or an optically active lactic acid acetal derivative, which are available at low cost, with an arylamine derivative to give an optically active N-aryllactamide derivative and treating it with a reducing agent.
本发明的目的是提供一种工艺,利用廉价的起始原料轻松生产具有光学活性的 N-芳基-1-氨基-2-丙醇衍生物,这种衍生物具有医药中间体的价值。
上述目的可以通过以下工艺生产光学活性 N-芳基-1-氨基-2-丙醇衍生物来实现,该工艺包括将光学活性乳酸衍生物或光学活性乳酸缩醛衍生物(可廉价购得)与芳基胺衍生物反应,得到光学活性 N-芳基内酰胺衍生物,然后用还原剂处理。