{4-[5-[(S)-2-Benzyloxycarbonylamino-3-(tert-butyl-dimethyl-silanyloxy)-propyl]-2-(2-cyclohexyl-ethoxy)-phenyl]-butyl}-carbamic acid tert-butyl ester

3-acetyl-O-methyl-N-<(phenylmethoxy)carbonyl>-L-tyrosine methyl ester

(S)-2-Benzyloxycarbonylamino-3-[4-(2-cyclohexyl-ethoxy)-3-(4-hydroxy-butyl)-phenyl]-propionic acid methyl ester

(S)-2-Benzyloxycarbonylamino-3-[4-(2-cyclohexyl-ethoxy)-3-(4-iodo-butyl)-phenyl]-propionic acid methyl ester

(S)-2-Benzyloxycarbonylamino-3-[4-(2-cyclohexyl-ethoxy)-3-(4-hydroxy-but-1-ynyl)-phenyl]-propionic acid methyl ester