Cephalosporin antibiotics
US5541175A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1994 |
| Grant date | Jul 30, 1996 |
| Priority date | — |
| Expiry date | Sep 7, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a cephalosporin compound represented by the following general formula (I): ##STR1## its pharmaceutically acceptable non-toxic salt, physiologically hydrolyzable ester, hydrate or solvate, or isomers thereof, in which PA1 R.sup.1 represents hydrogen or an amino-protecting group, PA1 R.sup.2 and R.sup.3 can be identical or different and independently of one another represent hydrogen or a hydroxy-protecting group, or PA1 R.sup.2 and R.sup.3 together can form a cyclic diol-protecting group, PA1 R.sup.4 represents hydrogen or a carboxyl-protecting group, PA1 R.sup.5, R.sup.6 and R.sup.7 independently of one another represent hydrogen, amino or substituted amino, hydroxy, alkoxy, C.sub.1-4 alkyl, carboxyl or alkoxycarbonyl, or PA1 R.sup.5 and R.sup.6 together with the carbon atoms to which they are attached can form a C.sub.3-7 cycle, and PA1 Q represents CH or N, and to a process for preparation thereof and a pharmaceutical composition containing the compound (I) as an active ingredient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.