Intermediates for the preparation of .DELTA..sup.4,9(11),17(20) -pregnatriene-3-ones
US5756722A · kind A · utility
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1Claims
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Key dates
| Filing date | Sep 6, 1996 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | Sep 6, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The novel intermediates of the formula ##STR1## wherein L, K and M are as defined in the specification which are useful intermediates for the preparation of .DELTA..sup.4,9(11),16 -pregnatriene-3-ones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.