2-Acetylamino-6-(benzyloxy-formyl-amino)-hexanoic acid tert-butyl ester

(S)-6-(Acetyl-benzyloxy-amino)-2-[(1-{(2S,3S)-2-[(R)-2-tert-butoxycarbonylamino-3-(4-methoxy-phenyl)-propionylamino]-3-methyl-pentanoyl}-piperidine-2-carbonyl)-amino]-hexanoic acid

(S)-Nε-acetyl-Nε-(benzyloxy)lysine