Patent ID: 8435950

Claim:
A peptide compound of general formula (I) below: R 1 -X 1 -X 2 -Ser-Pro-Leu-Gln-X 3 -X 4 -R 2 wherein X 1 is a cysteine, a methionine or is equal to zero, X 2 is a serine, a threonine, or is equal to zero, X 3 is an alanine, a glycine, an isoleucine, a leucine, a proline, a valine or is equal to zero, X 4 is an asparagine, a glutamine, or is equal to zero, R 1 is the primary amine function of the N-terminal amino acid, either free or substituted by a protective group which can be selected from an acetyl group, a benzoyl group, a tosyl group or a benzyloxycarbonyl group, R 2 is the hydroxyl group of the carboxyl function of the C-terminal amino acid, either free or substituted by a protective group which can be selected from a C 1 to C 20 alkyl chain or a NH 2 , NHY or NYY group where Y is a C 1 to C 4 alkyl chain.