R106 new compounds.

NEW R106 compounds represented by the following general formula (I): wherein: A SUB 1 EN PHE, O-FPHE, M-FPHE, O TUR; A SUB 2 EN MePhe, O-FMEPHE, M-FMEPHE, MeTyr, SAR, MeSer, O (BETA) -OXOMEPHE; A SUB 3 is Pro, 4Hyp, or SPRO; A SUB 4 EN ALLO-LLE or Nle; A SUB 5 is Leu or Nva; A SUB 6 EN (BETA) -HOMEVAL O SAR; EXCLUDING those wherein A 1 is Phe AND SUB SUB 2 EN MePhe AND SUB 3 EN PRO AND SUB 4 EN ALLO-LLE AND SUB 5 EN LEU AND SUB 6 EN (BETA) -HOMEVAL.