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. 01, 2010
Filed:
Aug. 17, 2006
Applicants:
Giovanni Fogliato, Barzana, IT;
Marco Forzatti, Monza, IT;
Maurizio Zenoni, Paullo, IT;
Inventors:
Assignee:
ACS DOBFAR S.p.A., Tribiano, IT;
Primary Examiner:
Int. Cl.
CPC ...
C07D 501/57 (2006.01); C07D 501/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
Method for purifying 7α-methoxy-cephalosporins containing as impurity the corresponding 7α-methylthio analogue, which is transformed into its methoxy analogue by treatment with a halogenating agent in methanol. In this way the complete conversion of the sulphurated impurity into the corresponding methoxy analogue is obtained.