Patent ID: 8258101

Claim:
A compound according to general formula (II) wherein: Cys=Cysteine X 1 ′ is 1, 2 or 3 amino-acids, independently selected from the group consisting of aspartic acid, tyrosine, tyrosine-aspartic acid, lysine or acetyl-lysine, or mixtures thereof; X 3 is arginine or N-methylarginine; X 5 ′ is phenylalanine, tyrosine, 3-iodo-tyrosine or naphthylalanine; X 7 ′ is a bond, glycine, or a O-bis(aminoethyl)ethylene glycol spacer; and X 8 ′ is a chelate binding to a metal radionuclide wherein the structure of the chelate is.