A morphinan derivative represented by formula (1) or a pharmacologically acceptable acid-addition salt thereof, and analgesic, diuretic, antitussive and brain cell protective agents each containing the derivative or the salt as the active ingredient. These compounds have potent analgesic, diuretic and antitussive effects as a highly selective κ-opioid agonist, and are useful as analgesic, diuretic and antitussive agents. In addition, they have a significant brain cell protective effect and are useful as a brain cell protective agent.
由式(1)代表的
吗啡南衍
生物或其药理学上可接受的酸加成盐,以及含有该衍
生物或盐作为活性成分的镇痛剂、利尿剂、镇咳剂和脑细胞保护剂。这些化合物作为一种高选择性κ-类阿片激动剂,具有强效的镇痛、利尿和镇咳作用,可用作镇痛、利尿和镇咳制剂。此外,它们还具有明显的脑细胞保护作用,可用作脑细胞保护剂。