摘要 |
Compounds of formula (I) and salts thereof, in which the following definitions apply: X is N or CH; R1 is H, A, Hal, (CH2)nHet, (CH2)nAr, C3-7-cycloalkyl, CF3, NO2, CN, C(NH)(OH), or OCF3; R2 is (CH2)nHet, (CH2)nAr, or C3-7-cycloalkyl, or CF3; R3 and R4 denote H or an organic radical. Compounds of formula (I) are useful as ligands of 5-HT receptors and useful in the treatment of disorders such as anxiety, depression, obsessive-compulsive disorder and pain. |