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

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

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

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

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