1: N-Fmoc-L-leucine With benzotriazol-1-ol; O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine Automated synthesizersolid phase reaction; 2: Automated synthesizersolid phase reaction; 3: N-(9-fluorenylmethoxycarbonyl)glycine; N-(fluoren-9-ylmethoxycarbonyl)-L-Val; N-Fmoc-L-leucine; N-(9H-fluoren-9-ylmethyloxycarbonylamino)-L-alanine; Fmoc-L-phenylalanine; fmoc-L-Ile-OH; N-(fluoren-9-ylmethoxycarbonyl)-L-Lys(Nε-Boc); N-(9-fluorenyl)methoxycarbonyl-Trp(Boc)-OH Further stages;