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:
Feb. 14, 2006
Filed:
Aug. 22, 2003
Applicant:
E. Ann Hallinan, Evanston, IL (US);
Inventor:
E. Ann Hallinan, Evanston, IL (US);
Assignee:
Pharmacia Corporation, St. Louis, MO (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 59/76 (2006.01);
U.S. Cl.
CPC ...
Abstract
(2S,5Z)-2-amino-7-(ethanimidoylamino)-2-methylhept-5-enoic acid is crystallized as an anhydrous, stoichiometric 1.5 HCl salt and a scaleable crystallization method is disclosed. The salt form was characterized and the absolute configuration of the chiral center was confirmed as 'S'. (2S,5Z)-2-amino-7-(ethanimidoylamino)-2-methylhept-5-enoic acid was high melting and appears acceptably non-hygroscopic for use in a pharmaceutical composition.