Sulphonamide derivatives and their use in the treatment of CNS disorders

Abstract

Sulphonamide compounds according to formula (I) or pharmaceutically acceptable salts thereof: wherein: Ar is naphthyl, phenyl or thienyl optionally substituted by one or more substituents selected from the group consisting of C1-6 alkyl optionally substituted by NR7R8, C2-6 alkenyl, C2-6 alkynyl, C1-6 alkylthio, cyano, nitro, halogen, CF3, C2F5, NR7R8, CONR7R8, NR7COR8, S(O)pNR7R8, CHO, OCF3, SCF3, COR9, CH2OR9, CO2R9 or OR9 where p is 1 or 2 and R7, R8 and R9 are independently hydrogen or C1-6 alkyl. R1 and R2 are independently hydrogen or C1-6alkyl or together with the nitrogen atom to which they are attached form a 5- to 7-membered heterocyclic ring optionally substituted by Cl-6alkyl and optionally containing a further heteroatom selected from nitrogen, sulphur or oxygen, the nitrogen atom being substituted by hydrogen, C1-6 alkyl or cycloC3-7alkyl; R3 is hydrogen or C1-6 alkyl; X is oxygen, sulphur or a bond; n is 2 or 3; and m is 1 or 2; are provided. The present compounds are useful in the treatment of CNS disorders.

Dependencies are inferred from the claim text.