This invention provides compounds of formula (I), wherein X is (CH2)n, O, S, SO, SO2, or CR1R2; n is 1 or 2; R?1 and R2¿ H, halogen, hydroxy, alkyl of 1 to 6 carbon atoms, alkoxy of 1 to 6 carbon atoms, or R?1 and R2¿, taken together form cycloakyl of 3 to 6 carbon atoms, an alkylidene of up to 6 carbon atoms or a carbonyl; R?3, R4 and R5¿ are H or alkyl of 1 to 6 carbon atoms; Z is H, alkyl of 1 to 6 carbon atoms, alkynoyl of 1 to 6 carbon atoms or alkoxycarbonyl of 2 to 7 carbon atoms; or a pharmaceutically acceptable salt thereof, as well as pharmaceutical compositions and methods for their use in treating or preventing characterized by glutamate hypofunction, including schizophrenia, schizoaffective disorder and schizophreniform disorder, and for the treatment of cognitive deficits due to aging, stroke, Alzheimer's disease or other neurodegenerative diseases.
本发明提供了式(I)的化合物,其中X为(
CH2)n,O,S,SO,SO2或CR1R2; n为1或2; R?1和R2¿为H,卤素,羟基,1至6个碳原子的烷基,1至6个碳原子的烷氧基,或者R?1和R2¿结合形成3至6个碳原子的环烷基,最多6个碳原子的烷基或羰基; R?3,R4和R5¿为H或1至6个碳原子的烷基; Z为H,1至6个碳原子的烷基,1至6个碳原子的炔酰基或2至7个碳原子的烷氧羰基; 或其药学上可接受的盐,以及在治疗或预防谷
氨酸低功能所表现的精神分裂症、情感性精神障碍和类精神分裂障碍,以及由于衰老、中风、阿尔茨海默病或其他神经退行性疾病引起的认知缺陷的治疗中使用它们的制药组合物和方法。