19-nor-steroids
US5707982A · kind A · utility
0Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 1993 |
| Grant date | Jan 13, 1998 |
| Priority date | — |
| Expiry date | May 28, 2013 |
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 ##STR1## wherein the A and B rings have a structure selected from the group consisting of ##STR2##
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.