methyl 3-((6S,9S,12S)-12-benzyl-6-isopropyl-9-methyl-4,7,10,13-tetraoxo-4,5,6,7,8,9,10,11,12,13,14,15-dodecahydrofuro[2,3-l][1,4,7,10]tetraazacyclotetradecine-2-carboxamido)propanoate

(6S,9S,12S)-N-(2-aminoethyl)-12-benzyl-6-isopropyl-9-methyl-4,7,10,13-tetraoxo-4,5,6,7,8,9,10,11,12,13,14,15-dodecahydrofuro[2,3-l][1,4,7,10]tetraazacyclotetradecine-2-carboxamide 2,2,2-trifluoroacetate

(6S,9S,12S)-12-benzyl-N-(3-hydroxypropyl)-6,9-dimethyl-4,7,10,13-tetraoxo-4,5,6,7,8,9,10,11,12,13,14,15-dodecahydrofuro[2,3-l][1,4,7,10]tetraazacyclotetradecine-2-carboxamide

Boc-Val-Ala-Phe-OH

(S)-2-[(S)-3-Methyl-4-(4-nitro-benzenesulfonyl)-2-oxo-piperazin-1-yl]-3-phenyl-propionic acid methyl ester