Cephem compounds
US4772682A · kind A · utility
1Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1986 |
| Grant date | Sep 20, 1988 |
| Priority date | — |
| Expiry date | Dec 22, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/65613
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to intermediates useful in the preparation of antimicrobial compounds, the intermediates being of the formula: ##STR1## wherein R.sup.A is --SCN or --S.sup..sym. (R.sup.3).sub.2, wherein PA0 R.sup.3 is lower alkyl, and PA0 R.sup.B is carboxy or --COO.sup..crclbar., or a salt thereof, with the proviso that when R.sup.A is --SCN, then R.sup.B is carboxy and that when R.sup.A is --S.sup..sym. (R.sup.3).sub.2, then R.sup.B is --COO.sup..sym..
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.