Crystalline cefdinir salts
US7173126B2 · kind B2 · utility
3Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2003 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Dec 1, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P31/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Cefdinir crystalline salts of formula (I),in which n ranges from 1 to 3, the preparation and use thereof for the preparation and purification of cefdinir are herein disclosed. The salts of formula (I) can be obtained from cefdinir intermediates or crude cefdinir by treatment with phosphoric acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.