Process for the purification of chenodeoxycholic acid
US4331607A · kind A · utility
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5Claims
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Key dates
| Filing date | Jul 11, 1980 |
| Grant date | May 25, 1982 |
| Priority date | — |
| Expiry date | Jul 11, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07J9/005
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Process for preparing chenodeoxycholic substantially free from impurities and from solvents; crude chenodeoxycholic acid is subjected to crystallization from a solvent selected in the group consisting of mono- and polyhalogenated aliphatic hydrocarbons containing from 1 to 5 carbon atoms and that, if desired, the thus obtained product is dissolved in a water-miscible organic acid having low molecular weight and the thus obtained solution is poured into water, the precipitate is poured into water, the precipitate is collected by filtration, washed with water and dried.
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