Peptidomimetics and their use in therapy

Compound of general formula:

• wherein:
• R1 relates to side chain of D-amino acid, selected from:
• D-Ala, D-Tre, D-Ser, D-Met, D-Leu, D-Glu, D-Asp, D-Lys or D-Arg,
• R2 relates to none, or to L-amino acid residue selected from Gly or Lys, or dipeptide residue L-Gly-L-Lys,
• R3 relates to L-amino acid residue selected from Phe or Trp,
• R4 relates to none, or to L-amino acid residue Lys,
• R5 relates to straight, saturated or unsaturated hydrocarbon chain of general formula CnHm, wherein n is an integer from 1 to 4, and m is an even integer from 2 to 10,
• R6-10 relates independently to a substituent selected from:
• hydrogen, hydroxyl, methyl, formyl, carboxy, methoxycarbonyl, carbamoyl, cyano, amino, methylamino, dimethylamino, iodo, fluoro, nitro, or sulphone,
• except of compound of general formula:
• wherein:
• R1 relates to side chain of D-amino acid selected from:
• D-alanine, D-threonine, D-serine, D-methionine, D-leucine, D-glutamine, D-asparagine, D-lysine, or D-arginine,
• and R2 relates to none, or to residue of glycine, or a dipeptide selected from Gly-Phe or Gly-Trp.