Table 1.

Sequences of Multi-Leu and P1–2 and their reported biological properties [84].

Compound	Sequence	t1/2 [h] b	Ki [nM]
Multi-Leu a	Ac-Leu-Leu-Leu-Leu-Arg-Val-Lys-Arg-NH2	2.1 ± 0.2	38
P1	Ac-Leu-LeuΨ[Tz]Leu-Leu-Arg-Val-Lys-Arg-NH2	1.0 ± 0.2	600
P2	Ac-LeuΨ[Tz]Leu-Leu-Leu-Arg-Val-Lys-Arg-NH2	4.0 ± 0.5	37

^a Reference compound. ^b Determined in blood plasma.