N-(4-{[4-(2,3-Bis-benzyloxy-benzoylamino)-butyl]-tert-butoxycarbonyl-amino}-butyl)-2-[(4-{[4-(2,3-bis-benzyloxy-benzoylamino)-butyl]-tert-butoxycarbonyl-amino}-butylcarbamoyl)-methyl]-2-hydroxy-succinamic acid tert-butyl ester

formylmethyl 2,3-dibenzyloxybenzoate

N-formylmethyl 2,3-dibenzyloxybenzamide

N-(2',2'-dimethoxyethyl) 2,3-dibenzyloxybenzamide

(2E,2'E)-((((2-((2,3-bis(benzyloxy)benzoyl)oxy)ethyl)azanediyl)bis(ethane-2,1-diyl))bis(oxy))bis(4-oxobut-2-ene-4,1-diyl) bis(2,3-bis(benzyloxy)benzoate)