A compound represented by the formula (I):
wherein each symbol is as described in the SPECIFICATION, or a salt thereof has a PDE2A inhibitory action, and is useful as a prophylactic or therapeutic drug for schizophrenia, Alzheimer's disease and the like.
化合物的
化学式为(I):其中每个符号如规范中所述,或其盐具有PDE2A抑制作用,并且可用作精神分裂症、阿尔茨海默病等疾病的预防或治疗药物。