4-(4-tert-Butoxycarbonyl-butoxy)-benzoic acid benzyl ester
5-bromopentanoic acid
tert-butyl 5-bromovalerate
4-(4-Carboxy-butoxy)-benzoic acid 2-(4-hydroxy-3-iodo-phenyl)-ethyl ester
4-(4-tert-Butoxycarbonyl-butoxy)-benzoic acid 2-(4-hydroxy-3-iodo-phenyl)-ethyl ester
4-(4-tert-Butoxycarbonyl-butoxy)-benzoic acid 4-(tert-butyl-diphenyl-silanyloxymethyl)-3-iodo-benzyl ester
4-(4-Carboxy-butoxy)-benzoic acid 4-(tert-butyl-diphenyl-silanyloxymethyl)-3-iodo-benzyl ester
4-(4-Carboxy-butoxy)-benzoic acid 3-iodo-benzyl ester