Process for preparing 17-substituted steroids
US9353145B2 · kind B2 · utility
5Cited by
0References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2012 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | Feb 3, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07J31/006
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a process for the preparation of 17-substituted steroids and, more particularly, to an improved method of synthesizing abiraterone or derivatives thereof in high yield and purity by means of a key 3-formate intermediate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.