Radiometal-binding peptide analogues

C - Chemistry – Metallurgy – 07 – K

Patent

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Details

C07K 2/00 (2006.01) A61K 51/08 (2006.01) C07K 1/13 (2006.01) C07K 7/02 (2006.01) C07K 7/06 (2006.01) C07K 7/23 (2006.01) C07K 7/56 (2006.01) C07K 14/475 (2006.01) C07K 14/575 (2006.01) C07K 14/68 (2006.01)

Patent

CA 2259950

Novel metal binding ligands are disclosed that may be coupled to peptides for use in methods of diagnosis and therapy. Peptides containing the ligands are produced using a method wherein ligand introduction or cyclization can be conducted at any point during the synthesis of the peptide. Such peptide derivatives are readily labeled with radiometals, such as isotopes of rhenium or technetium, while retaining their ability to tightly bind specific peptide receptors.

L'invention décrit de nouveaux ligands qui lient des métaux et que l'on peut coupler à des peptides afin de les utiliser dans des méthodes de diagnostic ou de thérapie. On produit les peptides contenant lesdits ligands selon une méthode d'après laquelle la cyclisation ou l'introduction des ligands peut être menée à n'importe quel stade lors des la synthèse du peptide. De tels dérivés de peptides peuvent être facilement marqués avec des radiométaux tels que des isotopes du rhénium ou du technétium; ils gardent cependant leur capacité de lier fermement des récepteurs de peptides déterminés.

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