Process for preparing 7-aminocephalosporanic acid derivatives
US4115646A · kind A · utility
2Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 22, 1977 |
| Grant date | Sep 19, 1978 |
| Priority date | — |
| Expiry date | Aug 22, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D501/16
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The use of an iodolactone as an esterifying derivative in the preparation of lactonyl esters of cephalosporins substantially reduces double bond migration during the esterification reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.