THE INVENTION RELATES TO COMPOUNDS OF GENERAL FORMULA (I): IN WHICH X1, X2, X3 AND X4, REPRESENT, INDEPENDENTLY OF EACH OTHER, A HYDROGEN OR HALOGEN ATOM OR A CL-C6-ALKYL, C3-C7-CYCLOALKYL, C3-C7-CYCLOALKYL-CL-C3,-ALKYLENE, C1-C6-FLUOROALKYL, C1-C6-ALKOXY, CL-C6-FLUOROALKOXY, CYANO, C(O)NR1R2, NITRO, NR1R2, C1-C6-THIOALKYL, -S(O)-C1-C6-ALKYL, -S(O)2-C1-C6-ALKYL, SO2NR1R2, NR3COR4, NR3SO2R5 OR ARYL GROUP, THE ARYL BEING OPTIONALLY SUBSTITUTED; W REPRESENTS A FUSED BICYCLIC GROUP OF FORMULA: BONDED TO THE NITROGEN ATOM VIA POSITIONS 1, 2, 3 OR 4; A REPRESENTS A 5- TO 7-MERNBERED HETEROCYCLE COMPRISING FROM ONE TO THREE HETEROATOMS CHOSEN FROM O, S AND N; THE CARBON ATOM(S) OF A BEING OPTIONALLY SUBSTITUTED; THE NITROGEN ATOM(S) OF A BEING OPTIONALLY SUBSTITUTED; N IS EQUAL TO 1, 2 OR 3; Y REPRESENTS AN OPTIONALLY SUBSTITUTED HETEROARYL; IN THE FORM OF BASE OR OF ACID-ADDITION SALT, AND ALSO IN THE FORM OF HYDRATE OR SOLVATE. PREPARATION PROCESS AND THERAPEUTIC USE.