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:
Nov. 13, 2001
Filed:
Aug. 07, 1997
Applicant:
Inventors:
Assignee:
Ajinomoto Co., Ine., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C 6/108 ;
U.S. Cl.
CPC ...
C07C / ; C07C 6/108 ;
Abstract
A process for producing optically active amino acid derivatives having a cyclohexyl group or a substituted cyclohexyl group by hydrogenating an amino acid derivative containing an aromatic group in the presence of a ruthenium catalyst. The starting material may be an unprotected amino acid or an N- and/or C-protected derivative thereof. An major advantage of the process is that the reduction may be accomplished without substantial racemization.