Oxacephalosporins
US4369315A · kind A · utility
0Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1981 |
| Grant date | Jan 18, 1983 |
| Priority date | — |
| Expiry date | Nov 19, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P31/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
New oxacephalosporins of the general formula ##STR1## in which R.sub.1 is a protective radical and (a) R.sub.4 is a substituted 2-(2-aminothiazol-4-yl)-acetyl radical of which the amine group is protected, or an .alpha.-carboxyarylacetyl radical, and R" is hydrogen or methoxy in the 7.alpha.-position, or alternatively PA0 (b) R.sub.4 is a protective radical and R" is hydrogen or methoxy in the 7.alpha.-position or hydrogen in the 7.beta.-position, in the form of a bicyclooct-2-ene or bicyclooct-3-ene or a 3-oxoethylidenebicyclooctane, are useful as intermediates for the preparation of pharmaceutically active oxacephalosporins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.