Process for the preparation of 3-vinyl and substituted vinyl cephalosporins
US4110534A · kind A · utility
11Cited by
1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1976 |
| Grant date | Aug 29, 1978 |
| Priority date | — |
| Expiry date | Apr 21, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/6539
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention is concerned with the preparation of .DELTA..sup.3 -4-carboxy cephalosporin antibiotics possessing a 3-vinyl group or substituted 3-vinyl group by means of phosphorous intermediates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.