Compounds of the formula (I), in which R
1
, R
2
, Q, X, Y, m and n have the meanings indicated in Claim (
1
), are potent 5-HT
2A
antagonists and are suitable for the treatment of psychoses, schizophrenia, depression, neurological disorders, memory disorders, Parkinson's disease, amyotrophic lateral sclerosis, Alzheimer's disease, Huntington's disease, eating disorders, such as bulimia, anorexia nervosa, of premenstrual syndrome and/or for positively influencing obsessive-compulsive disorder (OCD).
                            公式(I)的化合物,其中R1、R2、Q、X、Y、m和n的含义如权利要求书(1)所示,是有效的5-HT2A拮抗剂,适用于治疗精神病、精神分裂症、抑郁症、神经系统疾病、记忆障碍、帕
金森病、肌萎缩性侧索硬化症、阿尔茨海默病、亨廷顿病、进食障碍,如暴食症、厌食症、经前综合征和/或对强迫症有积极影响。