The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 12, 2006
Filed:
Oct. 03, 2002
Applicants:
Shigeru Kawano, Takasago, JP;
Yoshihiko Yasohara, Takasago, JP;
Inventors:
Shigeru Kawano, Takasago, JP;
Yoshihiko Yasohara, Takasago, JP;
Assignee:
Kaneka Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P 41/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a method for preparing optically active 3-hydroxypentanenitrile with high yield. Optically active 3-hydroxypentanenitrile is prepared by stereoselectively reducing 3-ketopentanenitrile by action of an enzyme, which asymmetrically reduces 3-ketopentanenitrile to optically active 3-hydroxypentanenitrile. Also, alkali metal salt of 3-ketopentanenitrile, which is a stable compound without problems regarding storage, can be efficiently obtained.