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. 06, 1994
Filed:
Sep. 29, 1993
Applicant:
Inventors:
Hiroyuki Nohira, Saitama, JP;
Kojiro Hara, Tokyo, JP;
Kensuke Nagashima, Tokyo, JP;
Tatsuhiko Hayashibara, Niigata, JP;
Assignee:
Kuraray Co., Ltd., Kurashiki, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07B / ;
U.S. Cl.
CPC ...
562401 ;
Abstract
In optical resolution of an optically inactive (.+-.)-cis-4-aminocyclopent-2-en-1-carboxylic acid derivative into its (+)-derivative and (-)-derivative, the (.+-.)-cis-4-aminocyclopent-2-en-l-carboxylic acid derivative is allowed to react with an optically active cis-2-(arylalkylamino)cyclohexanemethanol or optically active .alpha.-alkylbenzylamine serving as an optically resolving agent, to form diastereomer salts corresponding to the (+)-cis-4-aminocyclopent-2-en-1-carboxylic acid derivative and the (-)-cis-4-aminocyclopent-2-en-1-carboxylic acid derivative.