Title:
PROCESS FOR PRODUCTION OF OPTICALLY ACTIVE NIPECOTAMIDE
Document Type and Number:
WIPO Patent Application WO/2011/010579
Kind Code:
A1
Abstract:
Disclosed is a process for producing optically active nipecotamide, which comprises the steps of: reacting nipecotamide with optically active lactic acid in a solvent to prepare a diastereomer salt mixture and causing one of diastereomer salts contained in the diastereomer salt mixture to precipitate; collecting the precipitated diastereomer salt; and treating the collected diastereomer salt with a base to cause optically active nipecotamide to release. The process enables the advantageous production of optically active nipecotamide on a commercial scale.
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Inventors:
WATANABE YOSUKE (JP)
OHTANI YUTAKA (JP)
OHTANI YUTAKA (JP)
Application Number:
PCT/JP2010/061858
Publication Date:
January 27, 2011
Filing Date:
July 07, 2010
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
WATANABE YOSUKE (JP)
OHTANI YUTAKA (JP)
WATANABE YOSUKE (JP)
OHTANI YUTAKA (JP)
International Classes:
C07D211/60; C07B57/00
Domestic Patent References:
| WO2008102720A1 | 2008-08-28 | |||
| WO2008120554A1 | 2008-10-09 | |||
| WO2008099730A1 | 2008-08-21 | |||
| WO2008102720A1 | 2008-08-28 |
Foreign References:
| JPH07133273A | 1995-05-23 | |||
| JPH083145A | 1996-01-09 | |||
| JPH09263578A | 1997-10-07 | |||
| JPH07258175A | 1995-10-09 |
Other References:
See also references of EP 2457899A4
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
Toru Nakayama (JP)
Toru Nakayama (JP)
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