Process for the purification of ursodeoxycholic acid
US4316848A · kind A · utility
1Cited by
3References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 11, 1980 |
| Grant date | Feb 23, 1982 |
| Priority date | — |
| Expiry date | Jul 11, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07J51/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A mixture of ursodeoxycholic acid and of chenodeoxycholic acid as well as of their salts and esters is reacted with a silylating agent in a suitable anhydrous organic solvent; the corresponding silyl-derivatives thus obtained are separated by crystallization and pure ursodeoxycholic acid is recovered from the corresponding silyl-derivatives in the usual manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.