(3R,4S,5S)-4-{[(S)-2-((S)-2-Benzyloxycarbonylamino-3-methyl-butyrylamino)-3-methyl-butyryl]-methyl-amino}-3-methoxy-5-methyl-heptanoic acid tert-butyl ester

Cbz-MeVal-Val-Dil-OtBu

Boc-(S)-Val-(3R,4S,5S)-Dil-(2R,3R,4S)-Dap-(S)-Doe