A novel brain cell protective containing a morphinane derivative represented by the compound of formula (1) or a pharmacologically acceptable acid-addition salt thereof as the active ingredient. This compound exhibits an excellent protective effect against cranial nerve cell necrosis in both in vitro and in vivo pharmacological tests, and hence can be used for preventing or treating ischemic encephalopathy, cranial nerve cell disorder, and dementia.
                            一种新型脑细胞保护剂,含有以式(1)化合物或其药理学上可接受的酸加成盐为代表的
吗啡烷衍
生物作为活性成分。该化合物在体外和体内药理试验中对颅神经细胞坏死均有很好的保护作用,因此可用于预防或治疗缺血性脑病、颅神经细胞紊乱和痴呆症。