Vitamin D compounds isotopically substituted at carbon 6 and process for their preparation
US4297289A · kind A · utility
11Cited by
2References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 1980 |
| Grant date | Oct 27, 1981 |
| Priority date | — |
| Expiry date | Jul 17, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2602/24
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for isotopically labeling carbon-6 of vitamin D and 5,6-trans-vitamin D compounds which comprises reducing the corresponding 6-oxo-cyclovitamin with a tritio- or deutero-borohydride and subjecting the reduction product to acid-catalyzed solvolysis. The 6-labeled compounds find application in the elucidation of vitamin D metabolism and function and in vitamin metabolite analyses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.