FIELD: organic chemistry, pharmaceuticals.
SUBSTANCE: invention relates to new compounds of formula I 
, or stereoisomers, or pharmaceutically acceptable salts thereof, wherein Q is SO2; n = 2 or 3; each R1 and R2 is independently H, halogen, OR22 or C1-C6-alkyl; each R3 and R4 is H; each R5 and R6 is independently H or C1-C6-alkyl optionally substituted with phenyl or R5 and R6 together with together with atom to which they are attached may form 5-7-membered ring optionally containing N as the second heteroatom optionally substituted with COOH or C1-C6-alkyl; R7 is H; R7 is optionally substituted 8013-membered bicyclic or tricyclic ring system, containing N in bridge bond and optionally 1, 2 additional heteroatoms selected from N, S wherein substituent represent 1 or 2 halogen atoms; R22 is H or C1-C6-phenyl optionally substituted with C1-C6-alkyl. Compounds of present invention specifically bond to 5-HT6 receptor and are useful in pharmaceutical compositions.
EFFECT: compounds with specific bonding to 5-HT6 receptor.
10 cl, 3 tbl, 45 ex
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