EP2401283A1 - 6-PHENYL-2-Ý((PIPERIDIN-4-YLMETHYL)-PIPERAZIN-1YL) OR PIPERAZIN 1-YLMETHYL)-PIPERIDIN-1-YL)¨-IMIDAZOÝ2,1-B¨Ý1,3,4¨THIADIAZOLE DERIVATIVES AND THEIR USE