4-nitromandelic acid methyl ester acetate

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

[4-((S)-2-Acetylamino-6-tert-butoxycarbonylamino-hexanoylamino)-phenyl]-hydroxy-acetic acid

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

{2-[2-(2-{2-[4-((S)-2-Acetylamino-3-phenyl-propionylamino)-phenyl]-2-fluoro-acetylamino}-ethoxy)-ethoxy]-ethyl}-carbamic acid 9H-fluoren-9-ylmethyl ester

[4-(acetyl-Phe-amino)phenyl]-hydroxy-acetic acid methyl ester

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

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

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

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

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

Methyl (S)-2-hydroxy-2-(4-nitrophenyl)acetate

{2-[2-(2-{2-[4-((S)-2-Acetylamino-3-phenyl-propionylamino)-phenyl]-2-hydroxy-acetylamino}-ethoxy)-ethoxy]-ethyl}-carbamic acid 9H-fluoren-9-ylmethyl ester

[4-(Boc-Phe-amino)-phenyl]-hydroxy-acetic acid methyl ester

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