5-Halo-tryptamine derivatives used as ligands of 5-HT6 and/or 5-HT7 serotonin receptors

摘要

This invention relates to compounds of formula (I), wherein R1 and R2 are the same or different and are H or C1-C6 straight or branched alkyl; R3 = C1-C6 straight or branched alkyl, R4 = halogen; and pharmaceutically acceptable salts thereof, useful as active ingredients in the preparation of drugs used as ligands of the 5-HT6 and / or 5-HT7 serotoninergic receptors.