1,1-dioxo-cephem-4-carbothiolic acid derivatives
US5356888A · kind A · utility
6Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1991 |
| Grant date | Oct 18, 1994 |
| Priority date | — |
| Expiry date | Oct 22, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P43/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
There are provided compounds I ##STR1## wherein A is a hydrogen atom or an organic group, PA1 R.sub.1 is hydrogen or halogen atom or an organic group, PA1 R.sub.2 is hydrogen or halogen atom, C.sub.1 -C.sub.4 alkyl or acyloxy group, PA1 R.sub.3 is hydrogen atom, C.sub.1 -C.sub.4 alkyl or alkoxy, benzyl group or a methylene and PA1 R.sub.4 is chloro, fluoro, hydrogen atom or an organic group. The compounds I are elastase inhibitors. A process for their preparation is also provided, as are pharmaceutical compositions containing them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.