| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to antagonists of serotonin 5-HT6 receptors - substituted 4-sulphonylpyrazoles and 3-sulphonyl-pyrazolo[1,5-a]pyrimidines of general formula 1 or general formula 1.2. These compounds can be used for treating and preventing development of different cognitive and neurodegenerative diseases of the central nervous system. In general formulae 1 and 1.2, 1 1.2 respectively, Ar is optionally substituted phenyl or optionally substituted 5-6-member heteroaryl, containing a nitrogen, oxygen or sulphur atom as a heteroatom; R1 is a hydrogen atom, optionally substituted C1-C5 alkyl, lower acyl or optionally substituted phenyl; R2 is an optionally substituted amino group or substituted hydroxy group or R1, together with the nitrogen atom to which it is bonded, and R2, together with the carbon atom to which it is bonded, form a substituted pyrimidine ring; R3 is a hydrogen atom, optionally substituted C1-C5alkyl, substituted hydroxyl group or substituted sulphanyl group, R5 is a hydrogen atom, optionally substituted C1-C5alkyl, substituted hydroxyl group or substituted sulphanyl group, R7 and R9 independently represent a hydrogen atom, C1-C3alkyl or phenyl, R8 is a hydrogen atom. ^ EFFECT: new compounds have useful biological properties. ^ 13 cl, 2 dwg, 4 tbl, 7 ex |
