Patent ID: 7473760

Claim:
A synthetic cyclic peptide of the structural formula: or a pharmaceutically acceptable salt thereof, wherein: R 2 is H, a C 1 to C 6 aliphatic linear or branched chain, or an aromatic amino acid side chain moiety; R 3 and R 5 are independently each an aromatic amino acid side chain moiety; R 6 is in each instance H; R 7 is H, an aliphatic L- or D-amino acid, an N-acylated L- or D-amino acid, a linear or branched C 1 to C 17 alkyl, aryl, heteroaryl, alkene, alkenyl, or aralkyl chain, a C 1 to C 17 aliphatic linear or branched chain with a terminal amino group, or an acylated C 1 to C 17 aliphatic linear or branched chain with a terminal amino group; m is 1 to 4, and p is 1 to 5, provided that m+p is 2 to 7, and n is 1 to 6.