19-Nor-steroids
US6790971B1 · kind B1 · utility
1Cited by
7References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 1995 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | May 16, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07J63/008
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A 19-nor-steroid having a formula selected from the group consisting of wherein the A and B rings have a structure selected from the group consisting of having hormonal properties and their preparation and novel intermediates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.