(EN) 2-alkylamino-3-arylsulfonyl-cycloalcano [e OR d] pyrazolo [1,5-A]pyrimidines / antagonists of serotonin 5-HT6 receptors, methods for the production and the use thereof
The invention relates to substituted 2-alkylamino-3-(arylsulfonyl)cycloalkyl[e or d]pyrazolo[1,5-a]pyrimidines, to serotonin 5-HT6 receptor antagonists, to novel drug substances and pharmaceutical compositions comprising the said compounds as active ingredients, and to novel medicaments and method for treatment and prophylaxis of various CNS diseases.2-Alkylamino-3-arylsulfonylcycloalkyl[e]pyrazolo[1,5-a]pyrimidines of general formula 1 and 2-alkylamino-3-arylsulfonylcycloalkyl[d]pyrazolo[1,5-a]pyrimidines of general formula 2,wherein: R1 is hydrogen or C1-C3 alkyl； R2 is C1-C3 alkyl； R3 is hydrogen, one or more optionally identical halogen atoms, C1-C3 alkyl or hydroxyl group optionally substituted with C1-C3 alkyl； n is the whole numbers 1, 2 or 3.
