.beta.-lactam derivatives of the cephem sulphone type
US5348952A · kind A · utility
8Cited by
11References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 12, 1992 |
| Grant date | Sep 20, 1994 |
| Priority date | — |
| Expiry date | Jun 12, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P37/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Cephalosporins of the formula (I): ##STR1## wherein m is one or two; n is zero, one or two; A and B are organic residues; and R.sub.1 and R.sub.2 are halogen or hydrogen atoms or organic groups are endowed with elastase inhibitory activity. Two processes for their preparation starting from the corresponding 4-acyl cephem are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.