Steroid derivatives
US5712263A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1996 |
| Grant date | Jan 27, 1998 |
| Priority date | — |
| Expiry date | Jun 14, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07J17/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
To provide novel steroid derivatives having an antitumor action which can be synthesized efficiently and stereoselectively by means of synthetic organic chemistry. A steroid derivative represented by the formula: ##STR1## wherein R is an alkyl group having 1 to 13 carbon atoms, A is a hydroxyl group or a group easily hydrolyzable to a hydroxyl group, X and Y together form an oxo group or an alkylenedioxy group having 2 or 3 carbon atoms, X is a hydroxyl group, an alkoxy group having 1 to 5 carbon atoms or a group easily hydrolyzable to a hydroxyl group, Y is a hydrogen atom or an alkoxy group having 1 to 5 carbon atoms, with the proviso that when X is a hydroxyl group or a group easily hydrolyzable to a hydroxyl group, Y is a hydrogen atom, and when X is an alkoxy group having 1 to 5 carbon atoms, Y is an alkoxy group having 1 to 5 carbon atoms, or a salt thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.