Epimerization of analogs of vitamin D
US7205420B2 · kind B2 · utility
5Cited by
5References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2003 |
| Grant date | Apr 17, 2007 |
| Priority date | — |
| Expiry date | Oct 20, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C401/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Provided is a method of general applicability of epimerizing a vitamin-D analog having an asymmetric allylic carbon atom at the C-24 position. The method is of particular utility in making calcipotriene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.