.DELTA..sup.3 -3-Vinyl or substituted vinyl-4-carboxy cephalosporins
US4107431A · kind A · utility
13Cited by
1References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1974 |
| Grant date | Aug 15, 1978 |
| Priority date | — |
| Expiry date | Jul 8, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/65613
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention is concerned with .DELTA..sup.3 -4-carboxy cephalosporin antibiotics possessing a 3-vinyl or substituted 3-vinyl groups as well as with phosphorous intermediates useful in the preparation thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.