Blocked cholecalciferol and dihydrotachysterol 3 derivatives
US4069321A · kind A · utility
18Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1976 |
| Grant date | Jan 17, 1978 |
| Priority date | — |
| Expiry date | Sep 13, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel cholecalciferol and dihydrotachysterol.sub.3 derivatives produced against metabolic conversions at the 25-position, their preparation, pharmaceutical compositions, methods of treating steroid-induced osteoporosis, senile osteoporosis and secondary hyperparathyroidism, especially that induced by an insufficient amount of calcium in relationship to the amount of phosphate, novel intermediates and their preparation are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.