Novel steroids
US4191697A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1978 |
| Grant date | Mar 4, 1980 |
| Priority date | — |
| Expiry date | Jun 15, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07J1/007
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel .DELTA..sup.1,3,5(10),6 -estratetraenes of the formula ##STR1## R is selected from the group consisting of hydrogen, acyl of an alkanoic acid of 1 to 5 carbon atoms, optionally substituted benzoyl, tetrahydropyranyl, trityl and trimethylsilyl and R.sub.1 is selected from the group consisting of acyl of an alkanoic acid of 1 to 5 carbon atoms, optionally substituted benzoyl, tetrahydropyranyl, trityl and trimethylsilyl, novel intermediates therefore, process for the preparation of estradiols marked with a tritium atom and the novel tritiated estradiols which are useful to the study and dosage of specific receptors of estrogen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.