[4-((S)-2-Acetylamino-3-phenyl-propionylamino)-phenyl]-hydroxy-acetic acid

{4-[acetyl-Glu(OBut-t)amino]-phenyl}-hydroxy-acetic acid methyl ester

((S)-5-Acetylamino-5-{4-[(2-{2-[2-(9H-fluoren-9-ylmethoxycarbonylamino)-ethoxy]-ethoxy}-ethylcarbamoyl)-fluoro-methyl]-phenylcarbamoyl}-pentyl)-carbamic acid tert-butyl ester

((S)-5-Acetylamino-5-{4-[(2-{2-[2-(9H-fluoren-9-ylmethoxycarbonylamino)-ethoxy]-ethoxy}-ethylcarbamoyl)-hydroxy-methyl]-phenylcarbamoyl}-pentyl)-carbamic acid tert-butyl ester

{4-[acetyl-Lys(Boc)amino]-phenyl}-hydroxy-acetic acid methyl ester