(-)-(3S,9S,14aR)-9-benzyl-3-[(R)-7-hydroxy-6-oxooctyl]-6,6-dimethyldecahydropyrrolo[1,2-a][1,4,7,10]tetraazacyclododecine-1,4,7,10-tetraone

(2S)-2-{[(tert-butoxy)carbonyl]amino}-8-oxodecanoic acid

(S)-N8-(benzyloxy)-2-((R)-5-oxopyrrolidine-2-carboxamido)-N1-phenyloctanediamide