Method for producing azetidinone and cephalosporin derivatives
US5405955A · kind A · utility
0Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1993 |
| Grant date | Apr 11, 1995 |
| Priority date | — |
| Expiry date | Jun 14, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D501/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
New compounds are disclosed having the general formulas (1) and (2): ##STR1## Also described is a process for preparing the compounds of formulas (1) and (2). Further described is a process for preparing a cephalosporin derivative having formula (5): ##STR2## by converting the compound of formula (1) to the compound of formula (2) and then converting the compound of formula (2) to the compound of formula (5).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.