Method for the racemization of etodolic acid
US7078533B2 · kind B2 · utility
0Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2004 |
| Grant date | Jul 18, 2006 |
| Priority date | — |
| Expiry date | Jul 28, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D491/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for the resolution of etodolic acid by crystallization of its salt with optically active 1-phenylethylamine and subsequent recovery of the (R,S) etodolic acid from the mother liquors of crystallization by racemization and crystallization is described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.