Patent ID: 7060678

Claim:
A peptide of the formula X-Met-A1-A2-A3-Tyr-Leu-Y or a pharmaceutically acceptable salt thereof, wherein X is Leu or deleted, Y is Lys or deleted, A1 is Tyr, A2 is Pro and A3 is Thr or A1-A2-A3 together, A1-A2 together, A2-A3 together or A2 is a furanoid sugar amino acid selected from the group consisting of Saa-1, Saa-3 and Saa-4 wherein at least one of A1-A2-A3, A1-A2, A2-A3 or A2 is Saa-1, Saa-3 or Saa-4, wherein Saa-1, Saa-3, and Saa-4 are represented by the structure where, when the pentacyclic ring is aromatic the sugar is Saa-1, where position 2 carboxylic acid has a S configuration and position 5 amino methyl group has R configuration the sugar is Saa-4 and where both the Position 2 carboxylic acid and position 5 amino methyl group have achiral configuration the sugar is Saa-3.