The invention relates to compounds of the formula (I), where: R1 is: a —NR5R6 group； an unsubstituted or substituted phenyl； R2 is: a (C1-C4)alkyl； an —X—R7 group； R3 and R4 each are independently a substituted phenyl； R5 is a hydrogen atom or a (C1-C4)alkyl； R6 is an unsubstituted or substituted (C1-C4)alkyl； or R5 and R6 together with the nitrogen atom to which they are bonded constitute an unsubstituted or substituted heterocyclic compound； X is a (C1-C5)alkylene； R7 is an —OR8 group, a —NR9R10 group, an —SO2—(C1-C4)alkyl group； R8 is a hydrogen atom or a (C1-C4)alkyl； R9 is a hydrogen atom or a (C1-C4)alkyl； R10 is a hydrogen atom, a —COR11 group, an —SO2R11 group or a —CO(CH2)mOH group； R11 is an unsubstituted or substituted (C1-C4)alkyl； m is 1, 2 or 3. The invention also relates to methods for preparing same and to the therapeutic use thereof.
