Vitamin D.sub.3 derivatives, process for preparation thereof, and antigens comprising said derivatives to be used for preparation of antibodies for immunochemical assay and antibodies prepared therefrom
US4456553A · kind A · utility
23Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 1983 |
| Grant date | Jun 26, 1984 |
| Priority date | — |
| Expiry date | May 18, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S530/807
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to novel vitamin D.sub.3 derivatives which have a carboxyl group or its ester group at the 22-position, processes for the preparation thereof, and antigens, which comprise said vitamin D.sub.3 derivative and an immunogenic carrier material, to be used for the preparation of antibodies for enzymeimmunoassay or radioimmunoassay and antibodies obtained therefrom. The determination of such activated vitamin D.sub.3 compounds as 25-hydroxy vitamin D.sub.3, 24, 25-dihydroxy vitamin D.sub.3, etc. can be made satisfactorily according to the present invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.