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:
Jul. 01, 2008
Filed:
Jun. 17, 2004
Applicants:
Livius Cotarca, Cervignano del Friuli, IT;
Roberto Giovanetti, Schio, IT;
Andrea Nicoli, Vicenza, IT;
Inventors:
Livius Cotarca, Cervignano del Friuli, IT;
Roberto Giovanetti, Schio, IT;
Andrea Nicoli, Vicenza, IT;
Assignee:
ZACH System S.p.A., Bresso, IT;
Primary Examiner:
Int. Cl.
CPC ...
C07C 61/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for the preparation of gabapentin which comprises the passage of a gabapentin inorganic salt through a strong cationic ionic exchange resin, the elution of gabapentin fixed on the column, the concentration of the resultant solution and the cristallization from organic solvent, characterized in that the elution of gabapentin fixed on the column is carried out by using an ammonia and alkaline hydroxide aqueous solution, is described.