A compound of general formula (I) ** Formula ** in which: one of X1 and X2 represents N, and the other of X1 and X2 represents -C (CH3); A represents an unsubstituted or substituted 5, 6 or 10 membered aryl or heteroaryl, the substituent of said aryl or heteroaryl being selected from the group consisting of halogen, C1-C4 alkyl, CN, and -O-C1-C4 alkyl; B is selected from the group consisting of residues B1 and B2: ** Formula ** R represents H or C1-C3 alkyl; one of Z1, Z 20 2 and Z3 represents -CR1-, and the others of Z1, Z2 and Z3 represent -CH-; or one of Z1, Z2 and Z3 represents N, one of Z1, Z2 and Z3 represents -CH-, and one of Z1, Z2 and Z3 represents -CR1-; R1 represents H, a halogen atom, CN, or heterocycloalkyl; n is 0 or 1; and acid addition salts thereof.Un compuesto de fórmula general (I)**Fórmula** en la que: uno de X1 y X2 representa N, y el otro de X1 y X2 representa -C(CH3); A representa un arilo o heteroarilo sin sustituir o sustituido de 5, 6 o 10 miembros, siendo el sustituyente de dicho arilo o heteroarilo seleccionado del grupo que consiste en halógeno, alquilo C1-C4, CN, y -O-alquilo C1-C4; B se selecciona del grupo que consiste en los restos B1 y B2:**Fórmula** R representa H o alquilo C1-C3; uno de Z1, Z 20 2 y Z3 representa -CR1-, y los otros de Z1, Z2 y Z3 representan -CH-; o uno de Z1, Z2 y Z3 representa N, uno de Z1, Z2 y Z3 representa -CH-, y uno de Z1, Z2 y Z3 representa -CR1-; R1 representa H, un átomo de halógeno, CN, o heterocicloalquilo; n es 0 o 1; y sales de adición de ácidos del mismo.