It compound of general formula (I): ** (See formula) ** wherein: - R1 is selected from the group consisting of:. (Hetero) aryl comprising from 5 to 30 atoms, optionally substituted, and. NRaRb, Ra and Rb groups together form with the nitrogen atom to which they are attached, a heterocycle comprising from 5 to 30 atoms, optionally comprising an SO2 radical or another heteroatom selected from N, O, or S, said optionally substituted heterocycle - R2 is selected from the group consisting of:. halogen atoms selected from F, Br and I,. aryl containing from 5 to 30 carbon atoms, optionally substituted. -NRaRb groups, Ra and Rb which form together with the nitrogen atom to which they are attached, a heterocycle comprising from 5 to 30 atoms, optionally comprising an SO2 radical or another heteroatom selected from N , O, or S, he said heterocycle being optionally substituted and - R3 is selected from the group consisting of:. halogen atoms selected from F, Cl and I,. alkenyls comprising from 1 to 20 carbon atoms, optionally substituted. -C (O) Rc, Rc selecting group consisting of a hydrogen atom or an alkyl group comprising from 1 to 10 carbon atoms, said alkyl group being optionally substituted,. -C (O) ORc selecting Rc the group consisting of a hydrogen atom or an alkyl group comprising from 1 to 10 carbon atoms, said alkyl group being optionally substituted,. -C (Re)> = N- (ORd), selecting Rd and Re independently from the group consisting of a hydrogen atom or an alkyl group comprising from 1 to 10 carbon atoms. heterocycloalkyl comprising from 3 to 20 carbon atoms, optionally substituted. alkyls comprising 1 to 20 carbon atoms, optionally substituted by at least one substituent with the proviso that at least one of R1 and R2 represent respectively a group -NRaRb or -NRaRb group and their pharmaceutically acceptable salts, hydrates, diastereomers or enantiomers and the radicals "alkyl", " aryl "," heteroaryl "," alkenyl "," heterocycle "," heterocycloalkyl "and" cycloalky