(3R,4S)-4-Benzyloxycarbonylamino-8-(2,3-bis-benzyloxy-benzoylamino)-3-(tert-butyl-dimethyl-silanyloxy)-octanoic acid

(3R,4S)-4-Benzyloxycarbonylamino-8-(2,3-bis-benzyloxy-benzoylamino)-3-hydroxy-octanoic acid ethyl ester

{(R)-2-[(3R,4S)-4-Benzyloxycarbonylamino-8-(2,3-bis-benzyloxy-benzoylamino)-3-(tert-butyl-dimethyl-silanyloxy)-octanoylamino]-3-hydroxy-propionylamino}-acetic acid 2,2,2-trichloro-ethyl ester

N-(N-Boc-ethylenediamine)-2,3-bis(benzyloxy)benzamide