| abstract |
The present invention relates to compounds of the general formula I and their therapeutically acceptable salts (wherein, in the formula, R represents a hydrogen atom, a lower alkyl group, a lower alkenyl group, a lower cycloalkyl group, an aryl group, an aralkyl group or a heterocyclic group, wherein the above groups are optionally substituted into ortho -, meta and / or para position 1, 2, 3 or 4 by electron withdrawing groups or electron donating groups; R represents a hydrogen atom, a lower alkyl group, an aryl group, an aralkyl group ppu or a heterocyclic group where the above groups are optionally substituted with one or more halogen atoms; R represents a lower alkyl group, an aryl group, an aralkyl group or a heterocyclic group, where the above groups are optionally substituted at the ortho, meta or para position 1, 2, 3 or 4 electron withdrawing groups or electron donating groups; R represents a hydrogen atom, a lower alkyl group or any acid functional group; n is 1 or 2). The compounds of the present invention can be used in medicine, mainly for the treatment of diseases associated with neurological and / or oxidative stress. |