This invention provides heterocyclic compounds of formula (I) that are potentially useful in the treatment of neuropsychiatric disorders associated with progressive processes leading to neuronal necrosis and dysfunction. In particular, the novel compounds which do not bind to muscarinic receptors are inhibitors of delayed neuronal death as shown in the gerbil bilateral occlusion model of ischemia.
                            该发明提供了式(I)的
杂环化合物,这些化合物在治疗与导致神经元坏死和功能障碍的渐进过程相关的神经精神障碍方面具有潜在的用途。特别是,这些新型化合物不结合毒蕈碱受体,是迟发性神经元死亡的
抑制剂,如在大鼠双侧闭塞缺血模型中所示。