Crystallisation of levibupivacaine and analogues thereof
US5994548A · kind A · utility
38Cited by
1References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 1997 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | Apr 25, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D211/60
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Levobupivacaine or an analogue thereof is prepared by reaction with a tartaric acid resolving agent in a solvent, in the presence of water and/or less 0.5 equivalents of the resolving agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.