| abstract |
Abstract of the disclosure: The invention relates to cyclopeptides of the formula I (I) in which A denotes Lys, D-Lys, Arg or D-Arg, B denotes Lys, D-Lys, Arg or D-Arg, C denotes Asp, D-Asp, Glu or D-Glu, U denotes Val or D-Val and D denotes Tyr, D-Tyr, Trp, D-Trp, Phe or D-Phe, 1 to 4 of the radicals A, B, C, U and D being in the D-configuration and the remaining radicals being in the D-configuration, processes for their preparation, their use and peptidic precursors and pro-cesses for their preparation. |