Alpha-melanocyte stimulating hormone derivatives and cosmetic application thereof
US7268108B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 31, 2003 |
| Grant date | Sep 11, 2007 |
| Priority date | — |
| Expiry date | Mar 19, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to peptides of formula (I) R-V1-Ala2-His3-X4-Y5-Trp5-NH2 wherein R represents a hydrogen atom or a protective group which can be chosen from among a benzoyl group, a tosyl group, a benzene sulfonyl group, a benzyloxycarbonyl group or a pyridinepropionyl group; V represents a natural amino acid or not chosen from among norleucine, norvaline and 2-N-Me-norleucine, X represents a natural amino acid or not having an aromatic character chosen from among phenylalanine, 1-naphtylalanine, 2-naphtylalanine, phenylglycine, benzothienylalanine, 4,4′-biphenylalanine, 3,3-diphenylalanine, homophenylalanine, indanylglycine, 4-methylphenylalanine, thienylalanine, p-nitrophenylalanine, halogenophenylalanine of configuration L or D; Y represents a natural amino acid of configuration L, having a basic character chosen from among arginine, lysine or ornithine, the enantiometers or diastercoisomers, and the mixtures thereof, including racemic mixtures. The invention also relates to a method for the preparation and application thereof in the field of therapeutics or cosmetics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.