Peptide compounds having a nitrogenous polycyclic structure
US4965250A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1988 |
| Grant date | Oct 23, 1990 |
| Priority date | — |
| Expiry date | Jan 25, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07K5/0815
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Tetrapeptide compounds of general formula: ##STR1## in which R denotes: PA1 a hydrogen atom, PA1 a straight- or branched-chain alkyl radical containing from 1 to 4 carbon atoms, PA1 an aryl radical such as phenyl or a heterocyclic aromatic radical such as thienyl, optionally substituted with a hydroxy, amino, mercapto, methylthio or lower alkyl group, PA1 a lower aralkyl radical such as benzyl, PA0 R' denotes a hydrogen atom or a straight- or branched-chain alkyl group containing from 1 to 4 carbon atoms, PA1 X denotes an oxygen atom or an NH group, PA1 Y denotes an oxygen or sulfur atom when X denotes an NH group, or Y denotes an NH group when X denotes an oxygen atom, PA1 t denotes 0 or 1, ##STR2## denotes a nitrogen-containing polycyclic structure, their enantiomers, epimers and diastereoisomers, as well as their addition salts with a pharmaceutically acceptable acid or base. Medicinal products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.