Process for preparing 4-substituted azetidinones
US4992545A · kind A · utility
3Cited by
8References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 1989 |
| Grant date | Feb 12, 1991 |
| Priority date | — |
| Expiry date | Sep 20, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for preparing 3-4-cis-.beta.,.beta.-(4)-substituted and 3-4-trans,.beta.,.alpha.- (4)-substituted azetidinones is provided. Also provided are novel 4,4-disubstituted azetidinones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.