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

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