1: 2-tert-butoxycarbonylamino-3-(3-iodo-4-methoxymethoxy-phenyl)-propionic acid methyl ester; hexamethylditin With tetrakis(triphenylphosphine) palladium(0) in toluene Heating; 2: 7-iodo-1H-indole-2,3-dione With copper(l) iodide; triphenyl-arsane; bis(benzonitrile)palladium(II) dichloride in N,N-dimethyl-formamide T=100°C; Stille coupling; 1 h;