A novel compound which is a &dgr;-opioid antagonist having high selectivity and activity, that exhibits immunosuppressive action, antiallergic action, anti-inflammatory action and brain cell-protecting action is disclosed. The compound according to the present invention is an indole derivative represented by the formula (I):
and pharmaceutically acceptable acid addition salts thereof. The present invention also provides an immunosuppressive agent, antiallergic agent, anti-inflammatory agent and brain cell-protecting agent comprising the derivative or the salt as an effective ingredient.
本发明揭示了一种具有高选择性和活性的&dgr;-阿片受体拮抗剂,具有免疫抑制作用、抗过敏作用、抗炎作用和保护脑细胞作用的新化合物。根据本发明,该化合物是由式(I)表示的
吲哚衍
生物,以及其药学上可接受的酸加盐。本发明还提供了一种
免疫抑制剂、抗过敏剂、抗炎剂和保护脑细胞剂,其包含上述衍
生物或盐作为有效成分。