Peptide compounds having a nitrogenous polycyclic structure
US4720484A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1986 |
| Grant date | Jan 19, 1988 |
| Priority date | — |
| Expiry date | Nov 20, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07K5/1024
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
The invention relates to tetrapeptide derivatives of the general formula ##STR1## in which R represents a hydrogen atom, a straight-chain or branched alkyl radical containing from 1 to 5 carbon atoms, optionally substituted by a hydroxy, amino, mercapto, methylthio, methylsulphoxide, carboxy or guanidino group, or a benzyl or indol-3-ylmethyl radical optionally substituted by a hydroxy group, PA0 R.sub.1 represents a hydrogen atom or an alkyl group containing from 1 to 4 carbon atoms, ##STR2## represents a nitrogenous polycyclic structure, the enantiomers, epimers and diastereoisomers thereof, as well as to the pharmaceutically acceptable acid or base addition salts thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.