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公开(公告)号:US20060135784A1
公开(公告)日:2006-06-22
申请号:US11276222
申请日:2006-02-17
IPC分类号: C07D263/38 , C07D263/04
CPC分类号: C07D263/20 , C07C227/20 , C07C227/32 , C07C227/42 , Y02P20/55 , C07C229/22 , C07C229/34
摘要: The present invention provides a process for preparing 3-amino-2-hydroxypropionic acid derivatives (1) which does not use dangerous reagents, is economically advantageous, and is suitable for an industrial production, which process comprises: treating N-protected-3-amino-2-hydroxypropionic acid derivatives (2) having a steric configuration at 2-position carbon reverse to that of derivatives (1) with a leaving group-introducing agent to convert into N-protected-3-aminopropionic acid derivatives (3), then treating the derivatives with a basic substance to convert into substituted-3-amino-2-hydroxypropionic acid derivatives (4) having an inverted steric configuration at 2-position carbon, and then converting the derivatives into 3-amino-2-hydroxypropionic acid derivatives (1).
摘要翻译: 本发明提供了一种制备不使用危险试剂的3-氨基-2-羟基丙酸衍生物(1)的方法,在经济上是有利的,适用于工业生产,该方法包括:将N-保护的3- 具有与衍生物(1)相反的2-位碳位置的氨基-2-羟基丙酸衍生物(2)与离去基团引入剂转化为N-保护的3-氨基丙酸衍生物(3), 然后用碱性物质处理衍生物,将其转化成在2-位碳上具有反向立体构型的取代-3-氨基-2-羟基丙酸衍生物(4),然后将其转化为3-氨基-2-羟基丙酸 衍生物(1)。