FIELD: chemistry.
SUBSTANCE: invention concerns novel derivatives of diazaspiropiperidine of the formula I: 
, where A-B is -CH2-CH2-, -CH2-O- or -O-CH2-; X is hydrogen or hydroxy; R1 is aryl optionally substituted by one or more substitutes selected out of group including haloid, (lower) alkyl, cyano, CF3, -OCF3, (lower) alkoxy, -SO2-(lower)alkyl, or heteroaryl with two nitrogen atoms; R2 is phenyl optionally substituted by one or more substitutes selected out of group including haloid, (lower) alkyl, CF3 or (lower) alkoxy; R3 is hydrogen or (lower)alkyl; n is 0, 1 or 2; and their pharmaceutically acceptable salts.
EFFECT: medicine based on compounds of the formula 1 and their application in obtaining medicine for neuropathological and neuropsychiatric disease treatment.
12 cl, 1 tbl, 29 ex
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