| 摘要 |
The present invention relates to compounds of formula wherein A-B is -CH<SUB>2</SUB>-CH<SUB>2</SUB>-, -CH<SUB>2</SUB>-O- or -O-CH<SUB>2</SUB>-; X is hydrogen or hydroxy; R<SUP>1 </SUP>is aryl, optionally substituted by one or two substituents selected from the group consisting of halogen, lower alkyl, cyano, CF<SUB>3</SUB>, -OCF<SUB>3</SUB>, lower alkoxy, -SO<SUB>2</SUB>-lower alkyl and heteroaryl; R<SUP>2 </SUP>is aryl, optionally substituted by one or two substituents selected from the group consisting of halogen, lower alkyl, CF<SUB>3</SUB>, and lower alkoxy; R<SUP>3 </SUP>is hydrogen or lower alkyl; n is 0, 1 or 2; or a pharmaceutically active salt thereof. The compounds of the invention may be used in the treatment of neurological and neuropsychiatric disorders.
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