The present invention provides a novel naphthyridine derivative that is effective for relieving pain, less toxic, and also is effective for treating diabetic neuropathy, the derivative being represented by the general formula (1):
1
wherein R
1
, R
2
, R
3
and R
4
are as described in the description.
本发明提供了一种新型
萘啶类衍
生物,它能有效缓解疼痛,毒性较小,还能有效治疗糖尿病神经病变,该衍
生物由通式(1)表示:
1
其中 R
1
, R
2
, R
3
和 R
4
如说明书所述。