Preparation of diazabicyclic Intermediates
US5196548A · kind A · utility
3Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1992 |
| Grant date | Mar 23, 1993 |
| Priority date | — |
| Expiry date | Jul 2, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D207/48
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Diazabicyclo[2.2.1]heptane intermediates are prepared from 4-hydroxy-L-proline in a five step procedure, or from allo-4-hydroxy-D-proline, through a novel 2-(C.sub.1 -C.sub.6)alkyl-5-substituted-2,5-diazabicyclo[2.2.1]heptane intermediate. The diazabicycloheptanes are of use in the preparation of antibiotic quinolones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.