Protection of lyophilized betalactams from color formation
US4418058A · kind A · utility
13Cited by
2References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1981 |
| Grant date | Nov 29, 1983 |
| Priority date | — |
| Expiry date | Jun 12, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P31/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A stable preparation of a lyophilized .beta.-lactam antibacterial containing a 7.beta.-(.alpha.-carboxy-.alpha.-arylacetamido)-7.alpha.-methoxy-3-heteroc yclic thiomethyl-1-dethia-1-oxa-3-cephem-4-carboxylic acid (I) alkali metal salt as the antibacterial component and a sugar or sugar alcohol compound as the stabilizing agent. ##STR1## (wherein Ar is a p-hydroxyaryl group and PA1 Het is a heterocyclic group optionally substituted by an alkyl group)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.