{3-[3-(4-Oxo-butyl)-phenyl]-propyl}-carbamic acid tert-butyl ester

[3-(3-{5-[7-(tert-Butyl-dimethyl-silanyloxymethyl)-naphthalen-2-yl]-4-oxo-pentyl}-phenyl)-propyl]-carbamic acid tert-butyl ester

{3-[3-(4-Hydroxy-butyl)-phenyl]-propyl}-carbamic acid tert-butyl ester

{3-[3-(4-Hydroxy-but-1-ynyl)-phenyl]-propyl}-carbamic acid tert-butyl ester

7-{5-[3-(3-tert-Butoxycarbonylamino-propyl)-phenyl]-2-oxo-pentyl}-naphthalene-2-carboxylic acid