Process for the purification of a salt of clavulanic acid
US7767823B2 · kind B2 · utility
1Cited by
1References
16Claims
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Key dates
| Filing date | May 9, 2001 |
| Grant date | Aug 3, 2010 |
| Priority date | — |
| Expiry date | Oct 28, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D498/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process in which a salt of clavulanic acid, typically an amine salt or an alkali metal salt is exposed to conditions, particularly a pH of less than 6.0, which reduces the quantity of contaminating impurities. The process may be a washing process, a recrystallisation process or a preparative process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.