A morphinan derivative or its pharmaceutically acceptable acid addition salt represented with, for example,
and an analgesic, diuretic, antitussive and brain cell protector having its derivative or its salt as the active ingredient are described.
The compound of the present invention possesses strong analgesic activity, diuretic action and antitussive action as a highly selective &kgr;-opioid agonist, allowing it to be used as a useful analgesic, diuretic and antitussive. On the other hand, the compound of the present invention also possesses remarkable cerebro-neuroprotective activity, thus allowing it be used as a useful cerebro-neuroprotective agents.
描述了一种
吗啡样衍
生物或其药学上可接受的酸加成盐,例如作为镇痛剂、利尿剂、镇咳剂和脑细胞保护剂的活性成分的衍
生物或其盐。本发明化合物具有强烈的镇痛、利尿和镇咳作用,作为高度选择性的κ-阿片受体激动剂,可用作有用的镇痛剂、利尿剂和镇咳剂。另一方面,本发明化合物也具有显著的脑神经保护活性,因此可用作有用的脑神经保护剂。