3-[(1,3-Dithiin-5-yl)-acetamido]-cephalosporins and antibacterial compositions containing them
US4088761A · kind A · utility
2Cited by
1References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 1977 |
| Grant date | May 9, 1978 |
| Priority date | — |
| Expiry date | Jan 17, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention provides novel cephalosporins of the formula: ##STR1## in which R.sub.1 represents acetoxy, (5-methyl-1,3,4-thiadiazol-2-yl)-thio, (1-methyl-tetrazol-5-yl)-thio or [1-(2-hydroxyethyl)-tetrazol-5-yl]-thio and R.sub.2 represents carboxyl, or R.sub.1 represents pyridinio and R.sub.2 the carboxylato ion, and, when R.sub.2 represents carboxyl, their metal salts and addition salts with nitrogen-containing bases, which have useful antibacterial properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.