Process for the preparation of cephalosporin compounds
US4258183A · kind A · utility
2Cited by
4References
3Claims
0Family size
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Key dates
| Filing date | Sep 20, 1979 |
| Grant date | Mar 24, 1981 |
| Priority date | — |
| Expiry date | Sep 20, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the preparation of a 3-carbamoyloxymethyl cephalosporin compound which comprises hydrolyzing a 3-phosphonocarbamoyloxymethyl cephalosporin compound. The hydrolysis is preferably effected at a pH in the range of pH3 to 4, for example using aqueous sodium hydrogen carbonate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.