abstract |
The invention provides compounds of formula (I) wherein X represents O or S; n is 2, 3, 4, 5, 6, 7, 8, 9 or 10; m is 2 or 3; Y represents N, C or CH; and the dotted line represents an optional bond; R<1>, R<1'>, R<2>, R<3>, R<4>, R<5>, R<6>, R<7>, R<8>, R<9>, R<10>, R<11> and R<12> are as defined in the description. The compounds are ligands of the 5-HT1a-receptor. |