Process for producing oxazolidinone derivative of beta-hydroxyethylamine compound and for producing beta-hydroxyethlamine compound
申请人:——
公开号:US20040181074A1
公开(公告)日:2004-09-16
The present invention provides a process of starting from N-alkoxycarbonyl-ethylamine compounds having a leaving group at the &bgr;-position to prepare oxazolidinone derivatives of &bgr;-hydroxyethylamine compounds having an inverted steric configuration at the &bgr;-position carbon, which comprises introducing a step of treating in contact with water with heating under acidic to neutral conditions into the process. Also, the present invention provides a process of starting from N-alkoxycarbonyl-ethylamine compounds having a leaving group at the &bgr;-position to prepare &bgr;-hydroxyethylamine compounds having an inverted steric configuration at the &bgr;-position carbon, which comprises subjecting the oxazolidinone derivatives prepared as described above to a step of treating in contact with water under basic conditions.
本发明提供了一种从&bgr;-位具有离去基团的N-烷氧羰基-乙胺化合物开始制备&bgr;-位碳具有倒立体构型的&bgr;-羟乙基胺化合物的噁唑烷酮衍生物的工艺,该工艺包括在酸性至中性条件下引入与水接触并加热处理的步骤。此外,本发明还提供了一种从在&bgr;-位上具有离去基团的N-烷氧基羰基-乙胺化合物开始制备在&bgr;-位碳上具有倒立体构型的&bgr;-羟乙基胺化合物的工艺,该工艺包括将如上所述制备的噁唑烷酮衍生物在碱性条件下与水接触处理的步骤。