Derivatives of 3-amino-pregn-5-ene
US4444767A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 1982 |
| Grant date | Apr 24, 1984 |
| Priority date | — |
| Expiry date | Oct 25, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P37/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A compound selected from the group consisting of: 3-amino-.DELTA..sup.5 -pregnenes of the formula I: ##STR1## wherein X is selected from the group of ##STR2## the wavy lines indicate that the group may be in the .alpha.-or .beta.-position, R.sub.1 is selected from the group consisting of hydrogen and hydroxyalkyl or 2 to 5 carbon atoms, R.sub.2 is selected from the group consisting of hydrogen, hydroxyalkyl of 2 to 5 carbon atoms, acyl of an aliphatic carboxylic acid of 3 to 8 carbon atoms, alkoxycarbonyl of 2 to 8 carbon atoms, acyl of an .alpha.-amino-carboxylic acid or from a peptide of 2 to 3 amino acids of which amines may be either unsubstituted or mono-or disubstituted with alkyl of 1 to 5 carbon atoms with the proviso that R.sub.1 and R.sub.2 are not both hydrogen and that if the 3-amino group is in the .beta.-position, (i) when X is ##STR3## R.sub.1 and R.sub.2 are not both hydroxyethyl or (ii) when X is ##STR4## and R.sub.1 is hydrogen, R.sub.2 is not ethoxycarbonyl, the compound of the formula I wherein X is ##STR5## R.sub.1 is hydrogen and R.sub.2 is methyl, the 3-amino group is in the .alpha.-position and their non-toxic, pharmaceutically acceptable acid addition salts…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.