((S)-5-{2-[4-(Benzyloxycarbonylamino-methyl)-phenyl]-acetylamino}-7-chloro-6-oxo-heptyl)-carbamic acid benzyl ester

((S)-7-Chloro-5-{(S)-2-[(naphthalene-2-carbonyl)-amino]-3-phenyl-propionylamino}-6-oxo-heptyl)-carbamic acid benzyl ester

BocPhe-Phe-Lys(Z)-CH2Cl

6-<4-(Nα-Boc-Phe)-aminobutyl>-3-benzyl-5-methyl-2(1H)-pyrazinone

6-<4-(Nα-Boc-Tyr)-aminobutyl>-3-isobutyl-5-methyl-2(1H)-pyrazinone