Anaesthetic steroids of the androstance and pregnane series
US3953429A · kind A · utility
5Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 1974 |
| Grant date | Apr 27, 1976 |
| Priority date | — |
| Expiry date | Feb 19, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07J75/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Steroids of the androstane and pregnane series possessing a 2.alpha.-hydrogen or halogen or an alkyl group; a 3.alpha.-hydroxy or acyloxy group, a 3.beta.-hydrogen or alkyl group; an 11.beta.-hydrogen or hydroxy group or an epoxy group linked also to the 9-position; an 11.alpha.-hydrogen or alkyl or allyl group; or an 11-oxo group; a 16 hydrogen or halogen or a methyl or dimethyl group; a 20-oxo or ethylenedioxy group; and a 20-methyl or alkoxy group. The compounds may be unsaturated at the 1(2), 8(9) or 9(11) positions. The compounds possess anaesthetic properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.