Synthesis of steroids
US4354972A · kind A · utility
Inventor
Key dates
| Filing date | Aug 10, 1981 |
| Grant date | Oct 19, 1982 |
| Priority date | — |
| Expiry date | Aug 10, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07J51/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention relates to the synthesis of steroids which are useful for their biological activity or which may be converted to steroids which have such activity. These syntheses include the steroid compounds and processes for their preparation. An object of the invention is to provide syntheses which are applicable to materials which are readily available in good supply for converting such materials to steroids which are useful and desirable in the manufacture of pharmaceutical products. More particularly, I have sought to discover processes and intermediate compounds useful in the synthesis of 24, 25-dihydroxycholesterol from hyodeoxycholic acid or lithocholic acid which are constituents of, and readily available from, animal bile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.