14,17.beta.-ethano-14.beta.-estratrienes and estratetraenes, process for their production, and pharmaceutical preparations containing them
US4789671A · kind A · utility
6Cited by
0References
27Claims
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Key dates
| Filing date | Feb 27, 1987 |
| Grant date | Dec 6, 1988 |
| Priority date | — |
| Expiry date | Feb 27, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P15/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
14,17.beta.-ethano-14.beta.-estratriene and estratetraene of Formula I ##STR1## wherein R.sup.1 is a hydrogen atom, a methyl or an acyl group of a monocarboxyclic acid of 1-12 carbon atoms, PA0 R.sup.2 is a hydrogen atom or an acyl group of a monocarboxylic acid of 1-12 carbon atoms, PA0 R.sup.3 is a hydrogen atom or a methyl group, and ##STR2## is a single or double C--C-bond show strong estrogenic activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.