Template-fixed beta-hairpin peptidomimetics with protease inhibitory activity

wherein Z is a chain of 11 α-amino acid residues which, depending on their positions in the chain (counted starting from the N-terminal amino acid) are Gly, or Pro, or Pro(4NHCOPhe), or of certain types which, as the remaining symbols in the above formula, are defined in the description and the claims, and salts thereof, have the property to inhibit proteases, in particular serine proteases, especially Cathepsin G or Elastase or Tryptase. These β-hairpin peptidomimetics can be manufactured by processes which are based on a mixed solid- and solution phase synthetic strategy.