The present invention relates to saccharide mimics which show a better biological activity at low concentrations as known saccharide mimics in inhibiting angiogenesis and inhibiting formation of metastasis by inhibiting adhesion and/or migration of human cancer cells, particularly in concentrations lower than 5 mM, and to pharmaceutical compositions comprising these saccharide mimics. The compounds of the present invention are useful as mimics of cell surface structures and, thus, for influencing cell-cell and cell-extracellular (ECM) interactions, which are controlled by bonds between protein-protein, saccharide-saccharide or saccharide-lectin on the cell-surface.Representative compounds of the present invention are for example: