Patent ID: 8859729

Claim:
A compound according to formula (I): R 1 -A 1 -A 2 -A 3 -A 4 -A 5 -R 2 (I) or a pharmaceutically acceptable salt thereof, wherein: A 1 is Apc; A 2 is D-Bal, D-1Nal, or D-2Nal; A 3 is D-Bal or D-Trp; A 4 is 2Fua, 2Pal, 3Pal, 4Pal, Pff, Phe, Taz, 2Thi, or 3Thi; A 5 is Apc or deleted; R 1 is hydrogen, (C 1-6 )alkyl, (C 5-14 )aryl, (C 1-6 )alkyl(C 5-14 )aryl, (C 3-8 )cycloakyl, or (C 2-10 )acyl; and R 2 is OH or NH 2 ; provided that: when A 5 is deleted, then: A 4 is 2Fua, Pff, or Taz; or A 1 is Apc and— A 2 is D-Bal; or A 3 is D-Bal; or A 4 is 2Thi, 3Thi, 2Pal, 3Pal, or 4Pal.