| 摘要 |
The present invention relates to compounds of formula (I); wherein A-B is -CH2-CH2-, - CH2-O- or -O-CH2-; X is hydrogen or hydroxy; Rl is aryl, optionally substituted by one or two substituents, selected from the group consisting of halogen, lower alkyl, cyano, CF3, - OCF3, lower alkoxy, -SO2-lower alkyl or by heteroaryl, R2 is aryl, optionally substituted by one or two substituents, selected from the group consisting of halogen, lower alkyl, CF3 or lower alkoxy; R3 is hydrogen or lower alkyl; n is 0, 1 or 2; and to their pharmaceutically active salts. The compounds of formula I may be used in the treatment of neurological and neuropsychiatric disorders.
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