The present invention is directed to 6-(1H-imidazo-1-yl)-2-aryl and 2-heteroaryl quinazoline and quinolines derivatives, compounds of formula (I), their pharmaceutical acceptable salts and solvates and corresponding pharmaceutical compositions, that acts as Monoamine Oxidase (MAO) inhibitors and Imidazoline Receptor ligands: wherein: X is independently selected from —CH group or a nitrogen atom (—N), W is independently selected from an aryl group, an heteroaryl group, or a benzocondensed heteroaryl group such as 1,3-benzodioxole, benzofuran, 2,3-dihydrobenzofuran, benzothiophene, 2,3-dihydrobenzothiophene, indole, 2,3-dihydroindole, benzimidazole, benzoxazole, benzothiazole, 2H-3,4-dihydrobenzopyran, [1,4]-benzodioxine, 2,3-dihydro-[1,4]-benzodioxine (1,4-benzodioxan). R1 is independently selected from hydrogen (—H), C1-C4 alkyl, hydroxymethyl (—CH2OH), aminomethyl (—CH2NH2), alkylaminomethyl [CH2NH(R2)], or di-alkylaminomethyl [CH2N(R2)2], trifluoromethyl (—CF3). Compounds of formula (I) elicited a pharmacological profile suitable for the clinical treatment of depression and related disorders, Parkinson disease, drug abuse, and morphine tolerance and dependence.