Thieno and furopyridinium-substituted cephalosporins
US4501739A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1982 |
| Grant date | Feb 26, 1985 |
| Priority date | — |
| Expiry date | Dec 15, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D495/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Cephalosporin compounds substituted in the 7-position by a 2-(5- or 6-membered heterocyclic)-2-oximinoacetylamino group and in the 3-position with a thienopyridinium methyl group or a furopyridinium methyl group are broad spectrum antibiotics highly effective in combating bacterial infections of gram-negative and gram-positive microorganisms. The cephalosporins are best prepared by reacting a silylated 7-[2-(heterocyclic)-2-oximinoacetylamino-3-iodomethyl-3-cephem-4-carboxyli c acid with the thienopyridine or the furopyridine. Pharmaceutical formulations comprising a compound of the invention and a method for treating bacterial infections comprising their use are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.