Sulphonamide derivatives of benzylamine of formula (I), wherein A represents phenyl unsubstituted or substituted； or 9- or 10-membered bicyclic group, linked to &mdash；(O)x&mdash；(CH2)y&mdash； through one of its aromatic carbon atoms, consisting of benzene ring fused with -membered heteroaromatic ring containing 1 or 2 heteroatoms independently selected from the group consisting of N and O, wherein such bicyclic group is unsubstituted or substituted or with 5- or 6-membered non-aromatic heterocyclic ring having 1 or 2 O atoms, wherein heterocyclic ring is unsubstituted or substituted with one or more C1-C3-alkyls； D represents a group selected from: phenyl unsubstituted or substituted； naphthyl unsubstituted or substituted； thiophene unsubstituted or substituted； bicyclic group consisting of imidazolering fused with 5-membered non-aromatic carbocyclic ring； bicyclic group consisting of benzene ring fused with 5-membered heteroaromatic ring, having 1 or 2 heteroatoms independently selected from the group consisting of N, O and S, unsubstituted or substituted and linked to sulphonamide moiety through one of carbon atoms of benzene ring； and bicyclic group consisting of benzene ring fused with&mdash；or 6-membered non-aromatic heterocyclic ring having 1 or 2 heteroatoms independently selected from the group consisting of N and O, unsubstituted or substituted, and linked to sulphonamide moiety through one of carbon N atoms of benzene ring； R represents H or &mdash；CH 3； x is 0 or 1； y is 2 or 3； and pharmaceutically acceptable salts and solvates thereof, with the provisos that if x is 0 and y is 2, then D is naphthyl unsubstituted or substituted with one halogen atom, and if R represents &mdash；CH 3, then A is not unsubstituted or substituted phenyl. The compounds can be used in the treatment and/or prophylaxis of central nervous system disorders.Dérivés Sulfonamides de la benzylamine de formule (I), dans laquelle A représente un groupe phényle non substitué ou substitué
