Cephalosporin antibiotics
US4504477A · kind A · utility
3Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 1981 |
| Grant date | Mar 12, 1985 |
| Priority date | — |
| Expiry date | Jul 21, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P31/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.