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:
May. 28, 2002
Filed:
Apr. 03, 2000
Applicant:
Inventors:
Naoya Kasai, Sennan-gun, JP;
Toshio Suzuki, Amagasaki, JP;
Hideaki Idogaki, Amagasaki, JP;
Miki Hatada, Amagasaki, JP;
Motoko Takeuchi, Amagasaki, JP;
Assignee:
Daiso Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P 4/100 ;
U.S. Cl.
CPC ...
C12P 4/100 ;
Abstract
A process for preparation of optically active 4-halogeno-3-hydoxybutyronitrile and 4-halogeno-3-alkanoyloxybutyronitrile, which are simply and economically prepared by reacting a racemic 4-halogeno-3-alkanoyloxybutyronitrile with a microorganism such as a strain of the genus Pseudomonas or the genus Enterobacter, which has the activity stereoselectively hydrolyzing the ester portion, its culture broth or an enzyme(s) derived from the microorganism or an enzyme preparation such as a lipase preparation.