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:
Mar. 12, 1985
Filed:
Jul. 21, 1981
Cynthia H O'Callaghan, Gerrards Cross, GB;
Barry E Ayres, Ickenham, GB;
David G Livermore, Princes Risborough, GB;
Christopher E Newall, London, GB;
Niall G Weir, Wembley, GB;
Glaxo Group Limited, London, GB;
Abstract
Cephalosporin antibiotics of general formula ##STR1## (wherein Y.sup..sym. represents a C-attached 1-C.sub.1-4 alkylpyridinium group) exhibit broad spectrum antibiotic activity with unusually high activity against strains of Pseudomonas organisms as well as high activity against various members of the Enterobacteriaceae. The invention also includes the non-toxic salts, non-toxic metabolically labile esters and 1-oxides of compounds of formula (I). Also described are compositions containing the antibiotics of the invention and processes for the preparation of the antibiotics.