Compounds of formula (I) and salts thereof are provided: wherein n is 0, 1, 2 or 3; R
1
is selected from phenyl and pyridyl, each of which is optionally substituted by one or two groups independently selected from C
1-4
alkyl and halogen; and R
2
is selected from H and CH
3
when n is 1 and R
2
is H when n is 2 or 3. Processes for preparation, pharmaceutical compositions, N and uses thereof as a medicament, for example in the treatment of a disease or condition mediated by a reduction or imbalance in glutamate receptor function, such as schizophrenia or cognition impairment, are also disclosed.
提供了式(I)的化合物和其盐:其中n为0、1、2或3;R1选自苯基和
吡啶基,每个基团可选地被一个或两个独立选择的C1-4烷基和卤素取代;当n为1时,R2选自H和
CH3,当n为2或3时,R2为H。还公开了制备方法、制药组合物、N和其作为药物的用途,例如在治疗由谷
氨酸受体功能降低或失衡引起的疾病或症状,如精神分裂症或认知障碍中的用途。