Cephem compounds
US5219848A · kind A · utility
15Cited by
7References
10Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 10, 1990 |
| Grant date | Jun 15, 1993 |
| Priority date | — |
| Expiry date | Aug 10, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D513/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Cephalosporin antibiotics having a 3-position substituent of the formula: ##STR1## are described, wherein X is --CO--, --SO.sub.2 -- or --COCH.sub.2 --; Y is --CO--, --SO.sub.2 -- or --CH.sub.2 --; Q is a benzene, pyridine or naphthalene ring, R.sup.1 and R.sup.2 are ortho with respect to each other and are independently hydroxy or of the formula O--M wherein M is a moiety and the O--M bond is cleavable in vivo and ring Q may be further substituted by a variety of atoms and groups. Processes for their preparation and use are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.