(2S,2'R,5'S,1''S)-2-Benzyloxycarbonylamino-3-[5'-(1''-tert-butoxycarbonylaminoethyl)tetrahydrofuran-2'-carbamoyl] methyl propionate

{N-(tert-Butoxycarbonyl)glycyl}-{(2'R,5'S,1''S)-5'-(1''-aminoethyl)tetrahydrofuran-2'-carbonyl}-{(2S)-3-amino-2-benzyloxycarbonylamino methyl propionate}

(S)-3-{[(2R,5S)-5-((S)-1-Amino-ethyl)-tetrahydro-furan-2-carbonyl]-amino}-2-benzyloxycarbonylamino-propionic acid methyl ester