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:
Sep. 21, 2010
Filed:
Jul. 09, 2004
Yasumasa Hamada, Chiba, JP;
Kazuishi Makino, Chiba, JP;
Yasumasa Hamada, Chiba, JP;
Kazuishi Makino, Chiba, JP;
Nissan Chemical Industries, Ltd., Tokyo, JP;
Abstract
There is provided a process for efficiently producing an anti form of an optically active β-hydroxy-α-aminocarboxylic acid derivative that is useful as an intermediate for pharmaceuticals and agrochemicals. The process for producing optically active β-hydroxy-α-aminocarboxylic acid derivative of formula (2) or (3) wherein Ris substituted or unsubstituted Calkyl group, or substituted or unsubstituted Caromatic group, Ris substituted or unsubstituted Calkyl group, or substituted or unsubstituted Caromatic group, characterized by comprising subjecting an α-aminoacyl acetic acid ester compound of formula (1) wherein Rand Rhave the same meaning as the above, to hydrogenation by catalytic asymmetric hydrogenation in the presence of an acid.