6-bromo-3-({[(diethoxy-phosphoryl)-(2-trimethylsilanyl-ethoxycarbonyl)-methyl]-carbamoyl}-methyl)-2-[3-(5-formyl-3H-imidazol-4-yl)-3-methyl-but-1-enyl]-indole-1-carboxylic acid tert-butyl ester

(6-bromo-2-iodo-1H-indol-3-yl)acetic acid methyl ester

6-bromo-2-iodo-3-methoxycarbonylmethyl-indole-1-carboxylic acid tert-butyl ester

benzyloxycarbonylamino-(diethoxy-phosphoryl)-acetic acid 2-trimethylsilanyl-ethyl ester

amino-(diethoxy-phosphoryl)-acetic acid 2-trimethylsilanyl-ethyl ester