Patent ID: 7081447

Claim:
A compound or pharmaceutically acceptable salt thereof of the formula: Y 1 —X 1 —X 2 —X 3 —X 4 —X 5 —X 6 —Y 2 wherein, Y 1 is a hydrogen, a methyl, an acetyl or is characterized by a backbone consisting of 1 to 32 carbon atoms; X 1 is absent or an L- or D- amino acid selected from the group consisting of Val, Ala, Leu, Ile, Nle, Asn, Gin, Ser, Thr, Tyr, Arg, Lys and Orn; X 2 is absent or an L- or D- amino acid selected from the group consisting of Val, Ala, Leu, Ile, Nle, Ser, Thr, Tyr, Pro, Cit, Mg, Lys, Orn, His, Glu, Asp, Trp, Cha (cyclohexylalanine) and Chg (cyclohexylglycine); X 3 is an L- or D- amino acid selected from the group consisting of Cha and Chg; X 4 is an L- or D- amino acid selected from the group consisting of Pro and Aze (azetidine-2-carboxylic acid); X 5 is an L- or D- amino acid selected from the group consisting of Tyr and Phe; X 6 is absent or an L- or D- amino acid selected from the group consisting of Arg, Lys, Orn and Har (homoarginine); and Y 2 is a hydrogen, a hydroxyl, an amino, 7-amido-4-methylcoumarin or p-nitroanilide.