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. 22, 1976
Filed:
May. 10, 1974
Applicant:
Inventors:
Dino Dinelli, San Donato Milanese, IT;
Franco Morisi, San Giovanni in Persiceto, IT;
Delio Zaccardelli, Monterotondo, IT;
Assignee:
Snam Progetti S.p.A., San Donato, Milanese, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12D / ;
U.S. Cl.
CPC ...
195-2 ; 195 29 ;
Abstract
A process for the preparation of only one of the two stereoisomer forms carbamyl amino acids is provided wherein certain heterocyclic compounds having an assymmetrical carbon, such as 5-substituted hydantoins, are hydrolyzed in the presence of certain enzymes, such as dihydropyrimidinase extracted from calf liver. In another embodiment of the invention, the corresponding amino acids are provided by hydrolyzing the carbamyl amino acids in the presence of these same enzymes.