D-Phe-L-Val-D-Val-L-Tyr

isovaleryl-L-tyrosyl-L-valyl-D-tyrosinol

L-Tyr-L-Leu-OH trifluoroacetate

n-butyryl-L-tyrosyl-L-leucyl-D-tyrosynol

Nα-leucyl[8-lysine]vasopressin