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:
Sep. 02, 1997
Filed:
Dec. 22, 1995
Applicant:
Inventors:
Maurizio Zenoni, Paullo, IT;
Mario Leone, Pioltello, IT;
Giuseppe Alessandro Donadelli, Casalpusterlengo, IT;
Assignee:
ACS Dobfar S.p.A., Tribiano, IT;
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
540215 ;
Abstract
Process for selectively reducing cephalosporin sulfoxides of 3-hydroxy cephem and 3-methylene cepham compounds by treatment with a chlorinating agent in the presence of a solvent and a base, which are both inert to the chlorinating agent.