Sodium salt of (6S)-folinic acid
US6160116A · kind A · utility
2Cited by
6References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1995 |
| Grant date | Dec 12, 2000 |
| Priority date | — |
| Expiry date | Jun 2, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D475/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a process for preparing (6S)-folinic acid and its salts by recrystallization of alkaline-earth salts of (6R,S)-folinic acid and, where necessary, liberation of the acid from the alkaline-earth folinates and/or, where necessary, conversion into the alkali salts by at least one recrystallization in the presence of a base. The invention also relates to calcium-, magnesium-, potassium- and sodium-(6S)-folinates and to (6S)-folinic acid prepared in accordance with the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.