Intermediate compounds for the preparation of antibacterial penem derivatives
US4772692A · kind A · utility
0Cited by
0References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1986 |
| Grant date | Sep 20, 1988 |
| Priority date | — |
| Expiry date | Apr 22, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/1804
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Intermediate compounds of the formula ##STR1## for the preparation of antibacterially active penem compounds and salts wherein R is hydrogen or an esterifying group, R.sup.1 is an unsubstituted or a mono-, di-, or tri-substituted phenyl, naphthyl, thienyl, pyridyl, quinolyl or isoquinolyl, R.sup.2 is hydrogen or a hydroxyl group which may be protected, R.sup.4 is chlorine or bromine and R.sup.5 is an alkyl or phenyl group; methods for making such compounds or salts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.