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. 24, 1984
Filed:
May. 17, 1982
Applicant:
Inventors:
Chung-Chen Wei, Cedar Knoll, NJ (US);
Manfred Weigele, North Caldwell, NJ (US);
Assignee:
Hoffmann-La Roche Inc., Nutley, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
2602 / ; 2602454 ; 2603309 ; 546275 ;
Abstract
A process for the Raney nickel desulfurization of penicillins is described. In the process of the invention, amino penicillanic acid or derivatives thereof are reacted with Raney nickel under controlled conditions of temperature and time to yield azetidinones which are useful as intermediates for the synthesis of monocyclic beta-lactam antibiotics.