摘要 |
The present invention relates to compounds of formula (I), and pharmaceutically acceptable salts, prodrugs, solvates and crystalline forms thereof, in which R<SUP>1 </SUP>and R<SUP>2 </SUP>independently represent: a C<SUB>1-6</SUB>alkyl group; an optionally substituted (amino)C<SUB>1-4</SUB>alkyl-group; an optionally substituted non-aromatic C<SUB>3-15</SUB>carbocyclic group; a (C<SUB>3-12</SUB>cycloalkyl)C<SUB>1-3</SUB>alkyl-group; a group -(CH<SUB>2</SUB>)<SUB>r</SUB>(phenyl)<SUB>s </SUB>in which r is 0, 1, 2, 3 or 4, s is 1 when r is 0 otherwise s is 1 or 2 and the phenyl groups are optionally independently substituted by Z; naphthyl; anthracenyl; an optionally substituted saturated 5 to 8 membered heterocyclic group containing one nitrogen and optionally one of the following: oxygen, sulphur or an additional nitrogen; 1-adamantylmethyl; a group -(CH<SUB>2</SUB>)<SUB>t </SUB>Het in which t is 0, 1, 2, 3 or 4, and the alkylene chain is optionally substituted and Het represents an optionally substituted aromatic heterocycle; or R<SUP>1 </SUP>represents H and R<SUP>2 </SUP>is as defined above; or R<SUP>1 </SUP>and R<SUP>2 </SUP>together with the nitrogen atom to which they are attached represent a saturated optionally substituted 5 to 8 membered heterocyclic group as defined above; X is CO or SO<SUB>2</SUB>; Y is absent or represents NH optionally substitututed by a C<SUB>1-3</SUB>alkyl group; R<SUP>3 </SUP>and R<SUP>4 </SUP>independently represent phenyl, thienyl or pyridyl substituted by Z; Z represents a C<SUB>1-3</SUB>alkyl group, a C<SUB>1-3</SUB>alkoxy group, hydroxy, halo, trifluoromethyl, trifluoromethylthio, trifluoromethoxy, trifluoromethylsulphonyl, nitro, amino, mono or di C<SUB>1-3</SUB>alkylamino, mono or di C<SUB>1-3</SUB>alkylamido, C<SUB>1-3</SUB>alkylsulphonyl, C<SUB>1-3</SUB>alkoxycarbonyl, carboxy, cyano, carbamoyl, mono or di C<SUB>1-3</SUB>alkyl carbamoyl, sulphamoyl and acetyl; and R<SUP>5 </SUP>is H, a C<SUB>1-3</SUB>alkyl group, a C<SUB>1-3</SUB>alkoxymethyl group, trifluoromethyl, a hydroxyC<SUB>1-3</SUB>alkyl group, C<SUB>1-3</SUB>alkoxycarbonyl, carboxy, cyano, carbamoyl, mono or di C<SUB>1-3</SUB>alkylcarbamoyl, acetyl, or hydrazinocarbonyl of formula -CONHNR<SUP>a</SUP>R<SUP>b</SUP>; with the provisos; and processes for preparing such compounds, their use in the treatment of obesity, psychiatric and neurological disorders, to methods for their therapeutic use and to pharmaceutical compositions containing them. |