Patent ID: 8497349

Claim:
A method for treating cancer comprising the administration of an effective amount of a polyvalent synthetic compound comprising a support on which at least 3 pseudopeptide units are grafted, said compound being of formula (I): wherein the support is a linear peptide, and wherein grafted support residues are separated by at least one amino acid; each X independently represents any amino acid; Y 1 and Y 2 are selected independently from arginine (R) and lysine (K); Z is proline; n and i are independently 0 or 1; m is an integer between 0 and 1; k is an integer between 3 and 8; and Ψ represents a modified peptide bond selected from the group consisting of a reduced bond (—CH 2 NH—), a retro-inverso bond (—NHCO—), a methyleneoxy bond (—CH 2 —O—), a thiomethylene bond (—CH 2 —S—), a carba bond (—CH 2 CH 2 —), a ketomethylene bond (—CO—CH 2 —), a hydroxyethylene bond (—CHOH—CH 2 —), an E-alkene bond or a (—CH═CH—) bond, to a patient in need thereof.