The present invention relates to compound (I) wherein: means a pyridazine, a pyrimidine or a pyrazine group, R independently represent a hydrogen atom, a halogen atom or a group chosen among a —CN group, a hydroxyl group, a —COOR1 group, a (C1-C3)fluoroalkyl group, a (C1-C3)fluoroalkoxy group, a —NO2 group, a —NRiR2 group, a (C1-C4)alkoxy group, a phenoxy group and a (C1-C3)alkyl group, said alkyl being optionally mono-substituted by a hydroxyl group, n is 1, 2 or 3, n′ is 1 or 2, R′ is a hydrogen atom, a halogen atom or a group chosen among a (Ci-C3)alkyl group, a hydroxyl group, a —COOR1 group, a —NO2 group, a —NR1R2 group, a morpholinyl or a morpholino group, a N-methylpiperazinyl group, a (Ci-C3)fluoroalkyl group, a (C1-C4)alkoxy group and a —CN group, Z is N or C, Y is N or C, X is N or C, W is N or C, T is N or C, U is N or C, for use as an agent for preventing, inhibiting or treating pathological or nonpathological conditions linked with premature aging. Some of said compounds are new and also form part of the invention.
