L-Pro-L-Val-Aib-Aib-L-Gln-L-Gln-L-Phl

methyl L-prolyl-L-valyl-2-methylalanyl-2-methylalaninate

Boc-L-Pro-L-Val-Aib-Aib-L-Glu(OBzl)-L-Gln-L-Phl

L-Pro-L-Val-Aib-Aib-L-Glu-L-Gln-L-Phl

Boc-L-Pro-L-Val-Aib-Aib-L-Gln-L-Gln-L-Phl