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

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

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

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