Somatostatin or bombesin derivatives and use thereof

摘要

In the present invention there are described peptide derivatives containing one or several substituents of the general formula I, wherein the individual symbols have specific meaning and that are separately linked by an amide, amino or sulfonamide bond to an amino group on either the N-terminal end or side chain of a biologically active peptide moiety. The peptide derivatives have relatively enhanced biological activity when compared to the corresponding peptide alone.