Biphenyl derivatives of formula (I) wherein R, X, Y, A?1, A2, A3¿, Q and n are as defined in Claim 1, and their salts, are active on the central nervous system showing serotonin antagonistic properties.
式(I)中的双苯衍
生物,其中R、X、Y、A1、A2、A3、Q和n如权利要求1所定义,并且它们的盐,在中枢神经系统上表现出5-羟
色胺拮抗性活性。