Abstract: A compound of formula (I) is: wherein: X2 represents a —CO—NRk— group, a —NR?k—CO— group, a —O— group, a —CO— group, a —SO2-group, a —CS—NH— group, a —CH2—NH—, a group, or a heterocyclyl, wherein the heterocyclyl is a 5- or 6-membered ring comprising 1, 2, 3 or 4 heteroatoms selected from O, S and/or N; Y2 represents a hydrogen atom, a halogen atom, a hydroxyl group, a morpholinyl group, optionally substituted by a (C1-C4)alkyl group or a trifluoromethyl group, a bridged morpholinyl group, a (C5-C11)bicycloalkyl group, an adamantyl group, a piperidinyl group, a (C1-C4)alkenyl group, a —PO(ORa)(ORb) group, a 5-membered heteroaromatic ring or a —CR1R2R3 group, or any of its pharmaceutically acceptable salt.