(S)-2-Benzyloxycarbonylamino-3-(3-{4-[(S)-2-((S)-2-tert-butoxycarbonylamino-3-carbamoyl-propionylamino)-2-methoxycarbonyl-ethyl]-phenoxy}-4-methoxy-phenyl)-propionic acid 2-bromo-ethyl ester

(2S)-2-azido-3-(4-chlorophenyl)propionic acid methyl ester

3-[3-(tert-Butyl-dimethyl-silanyloxy)-4-methoxy-phenyl]-propionic acid

3-(3-hydroxy-4-methoxyphenyl)propionic acid benzyl ester

(2S)-2-azido-3-(3-hydroxy-4-methoxyphenyl)propionic acid 2-bromoethyl ester