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:
May. 10, 2011
Filed:
Sep. 17, 2009
Applicants:
Corrado Colli, Galliate, IT;
Massimiliano Forcato, Galzignano Terme, IT;
Livius Cotarca, Cervignano Del Friuli, IT;
Inventors:
Corrado Colli, Galliate, IT;
Massimiliano Forcato, Galzignano Terme, IT;
Livius Cotarca, Cervignano Del Friuli, IT;
Assignee:
Zach System S.p.A., Bresso (MI), IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 207/06 (2006.01); C07D 207/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for the manufacturing of levetiracetam, wherein said process comprises the steps of: (1) reacting the (−)-(S)-alpha-ethyl-2-oxo-1-pyrrolidine acetic acid with a substoichiometric amount of an activating agent in an alcoholic solvent, and (2) subjecting the resulting reaction solution of step (1) to an ammonolysis process with gaseous ammonia.