Composition of matter and process
US4175006A · kind A · utility
3Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1977 |
| Grant date | Nov 20, 1979 |
| Priority date | — |
| Expiry date | Oct 21, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/865
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Valuable steroid intermediates, 9.alpha.-hydroxyandrost-4-ene-17.beta.-ol-3-one (9.alpha.--OH testosterone), 9.alpha.-hydroxy-3-ketobisnorchol-4-en-22-ol (9.alpha.--OH BN alcohol) and 9.alpha.---hydroxy-3-ketobisnorchol-4-en-22-oic methyl ester (9.alpha.--OH BN acid methyl ester), prepared by microbiological conversion of steroids having 17-alkyl side chains of 8 to 10 carbons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.