发明授权
US06222050B1 Optically active 1,4-benzodioxine-2-carboxylic acid derivatives and process for producing the same
失效
光活性1,4-苯并二恶英-2-羧酸衍生物及其制备方法
- 专利标题： Optically active 1,4-benzodioxine-2-carboxylic acid derivatives and process for producing the same
- 专利标题（中）： 光活性1,4-苯并二恶英-2-羧酸衍生物及其制备方法
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申请号： US09509200申请日： 2000-03-23
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公开(公告)号： US06222050B1公开(公告)日： 2001-04-24
- 发明人: Koji Kawamura , Masahiro Ueno , Masashi Suzuki , Makoto Yanai , Toshihiro Takahashi , Koichi Itoh
- 申请人： Koji Kawamura , Masahiro Ueno , Masashi Suzuki , Makoto Yanai , Toshihiro Takahashi , Koichi Itoh
- 优先权： JP10-217829 19980731
- 主分类号： C07D31920
- IPC分类号： C07D31920
摘要：
Disclosed are optically active alcohols having formula (1) and (2) wherein R is (R)-1-phenylethylamino or (S)-1-phenylethylamino. The active alcohols can be prepared by acylating a racemate of formula (3) in the presence of a hydrolase, followed by alcoholysis or hydrolysis. R in formula (3) is the same as that defined for formula (1) and (2).
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