Z-Val-OH
Z-Trp-OBzl
Z-D-Trp-OH
Z-L-Trp-OH
Z-Thr-OH
Z-D-Pro-OH
Z-Pro-NH2
Z-L-Pro-OH
Z-L-Phe-OH
Z-Orn-OH
Z-Lys(Boc)-OH
Z-Leu-OH
Z-Gly-OH
Z-Gly-OH
Z-Gln(Trt)-OH
Z-Gln-OH
Z-Asp(OtBu)-OH
Z-Asp-OMe
Z-L-Asp-OH
Z-L-Asn-OH
Z-L-Arg-OH
Z-β-Ala-OH
Z-Ala-OH
Z-Gly-OH