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:
Jun. 05, 1984
Filed:
Jun. 14, 1982
Hamao Umezawa, Tokyo, JP;
Masaji Ohno, Kamakura, JP;
Hirokazu Kotani, Muko, JP;
Toshinori Miyabe, Muko, JP;
Akira Obayashi, Uji, JP;
Osamu Tanabe, Uji, JP;
Takara Shuzo Co., Ltd., Kyoto, JP;
Abstract
The present invention provides a process for preparing a optically active .beta.-(S)-aminoglutaric acid monoalkyl ester of the formula: ##STR1## wherein R is a lower alkyl group having 1 to 4 carbon atoms, which comprises subjecting a .beta.-N-protected aminoglutaric acid dialkyl ester of the formula: ##STR2## wherein each R is as defined above and A is an easily removable protecting group, to an action of an enzyme produced by a microorganism belonging to the genera Flavobacterium, Achromobacter, Xanthomonas, Alcaligenes, Serratia, Gluconobacter, Chromobacterium and Acetobacter, to selectively hydrolyze only one of the two ester groups, and then removing the protecting group.