The present invention is concerned with aryl-isoxazol-4-yl-imidazole derivatives of formula I:
wherein
R
1
to R
6
are as defmed in the specification and pharmaceutically acceptable acid addition salts thereof. This class of compounds has high affinity and selectivity for GABA A α5 receptor binding sites and might be useful as cognitive enhancer or for the treatment of cognitive disorders like Alzheimer's disease.
本发明涉及式I的芳基异噁唑-4-基咪唑衍生物:其中R1至R6如规范中定义,并且其药用酸盐。这类化合物具有高亲和力和选择性结合到GABA A α5受体结合位点,可能有助于作为认知增强剂或治疗认知障碍如阿尔茨海默病。
The present invention is concerned with 3-aryl-isoxazole-4-carbonyl-benzofuran derivatives of formula I
wherein
R1, R2, and R3 are as defined in the specification and claims and with their pharmaceutically acceptable acid addition salts. These compounds have a high affinity and selectivity for GABA A α5 receptor binding sites and might be useful as cognitive enhancer or for the treatment of cognitive disorders like Alzheimer's disease.
本发明涉及式I的3-芳基异噁唑-4-羰基苯并呋喃衍生物,其中R1、R2和R3如说明书和权利要求中所定义,并且它们的药物可接受的酸盐。这些化合物具有高亲和力和选择性,可与GABA A α5受体结合位点结合,并可能用作认知增强剂或治疗认知障碍,如阿尔茨海默病。