1: Nα-Fmoc-Nim-tert-butyloxycarbonyl-L-tryptophan 4-hydroxymethylphenoxy resin With piperidine in N,N-dimethyl-formamide T=20°C; 2: 2-chloro-5-carboxybenzene With benzotriazol-1-ol; O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine in N,N-dimethyl-formamide T=20°C; 2 h; 3: With methoxybenzene; trifluoroacetic acid T=20°C; 1 h;

1: With sodium hydroxide in water T=20°C; 3 h; 2: With hydrogenchloride in water pH=1 - 2;