| abstract |
The present invention relates to the use of compounds of the general formula (I) wherein R1 is lower alkyl or halogen; R2 is hydrogen or halogen; R3 -(CHR')nOH, phenyl, optionally substituted by -(CHR')nOH, or is a saturated, partial saturated or aromatic 5-or 6-membered heterocyclic ring with one heteroatom, selected from the group consisting of-N(R4)-, -N=, formula (II), -S- or -S(O)2, and which rings are optionally substituted by - (CHR’)nOH ; R’ is independently from “n” hydrogen or - (CH2)nOH; R4 is hydrogen, -S(O2)-lower alkyl or -C(O)-lower alkyl; X is -O-, -CH2O-, -S- or a bond; n is 1 or 2; or to pharmaceutically active acid-addition salts thereof, for the preparation of medicaments for the treatment of schizophrenia. |