Synthesis of carbapenems using n-substituted azetidinones
US4769451A · kind A · utility
5Cited by
4References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 15, 1985 |
| Grant date | Sep 6, 1988 |
| Priority date | — |
| Expiry date | Aug 15, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/1804
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A novel process is disclosed for converting known 3,4-disubstituted azetidinones to carbapenems. The process proceeds through novel N-substituted intermediates and then cyclizes to the 4-position of the azetidinone to form the carbapenem.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.