(S)-1-[(S)-2-((S)-2-Amino-3-methyl-butyrylamino)-4-methyl-pentanoyl]-pyrrolidine-2-carboxylic acid tert-butyl ester

(S)-1-[(S)-4-Methyl-2-((S)-3-methyl-2-{(S)-3-phenyl-2-[((S)-pyrrolidine-2-carbonyl)-amino]-propionylamino}-butyrylamino)-pentanoyl]-pyrrolidine-2-carboxylic acid tert-butyl ester

N-Fmoc-L-Val-L-Asn-L-Pro-L-Phe-L-Val-L-Leu-L-Pro-O-(t-Bu)