Synthesis of 1.alpha.,25-dihydroxyergocalciferol
US4508651A · kind A · utility
30Cited by
3References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1983 |
| Grant date | Apr 2, 1985 |
| Priority date | — |
| Expiry date | Mar 21, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/1804
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention is directed to a process and intermediates for the preparation of 1.alpha.,25-dihydroxyergocalciferol as well as substantially pure and crystalline 1.alpha.,25-dihydroxyergocolciferol. The end-product 1.alpha.,25-dihydroxyergocalciferol is useful in the treatment of disease states which are characterized by insufficient amounts of 1.alpha.,25-dihydroxycholecalciferol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.