Process for preparing cephalosporin compounds
US4803267A · kind A · utility
1Cited by
11References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 30, 1985 |
| Grant date | Feb 7, 1989 |
| Priority date | — |
| Expiry date | Aug 30, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D501/40
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to the novel compound (6R,7R)-7-(D-5-benzamido-5-carboxypentanamido)-3-(1-pyridiniummethyl)-ceph -3- em-4-carboxylate and salts thereof, which may be prepared in substantially pure form. The novel compounds are useful for the preparation of (6R,7R)-7-amino-3-(1-pyridiniummethyl)ceph-3-em-4-carboxylate or salts thereof, which are themselves useful for the preparation of 7-substituted 3-pyridiniummethyl cephalosporin antibiotics such as ceftazidime and cephaloridine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.