Synthesis of steroids
US4226770A · kind A · utility
18Cited by
2References
18Claims
0Family size
Inventor
Key dates
| Filing date | Feb 23, 1979 |
| Grant date | Oct 7, 1980 |
| Priority date | — |
| Expiry date | Feb 23, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07J41/0094
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The synthesis of 1.alpha.,25-dihydroxycholesterol, 1.alpha.,25-dihydroxy-7-dehydrocholesterol and 1.alpha.,25-dihydroxycholecalciferol and other sterol derivatives from bile acids. Also the synthesis of 3,6-diketo steroids useful in the production of 1.alpha.,25-dihydroxycholesterol and other sterols which are biologically active or can be converted to biologically active sterols. The invention involves the sterols so produced and the processes by which they are prepared.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.