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:
Nov. 29, 2001
Applicants:
Massimo Ferrari, Cenate Sotto, IT;
Marcello Ghezzi, Curno, IT;
Paolo Belotti, San Paolo d'Argon, IT;
Inventors:
Massimo Ferrari, Cenate Sotto, IT;
Marcello Ghezzi, Curno, IT;
Paolo Belotti, San Paolo d'Argon, IT;
Assignee:
Erregierre S.p.A., San Paolo D'Argon, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 61/08 (2006.01); A61K 31/195 (2006.01);
U.S. Cl.
CPC ...
Abstract
A conversion process of gabapentin hydrochloride into gabapentin comprising: a) dissolution of gabapentin hydrochloride in a solvent in which the gabapentin hydrochloride and the gabapentin are completely soluble; and b) subsequent addition of an amine that allows the removal of the chloride ion from the solution containing gabapentin hydrochloride, by precipitation of the hydrochloride of the same amine, leaving the gabapentin in solution in free amino acid form.