A method for the treatment or prophylaxis of diseases treatable or preventable by potentiating the effect of a neurotrophin by administering a therapeutically effective amount of a 6(5H)-phenanthridinone derivative represented by the formula (I):
1
wherein R
1
, R
1′
, R
2
and R
2′
are each independently selected from the group consisting of a hydrogen atom and a halogen atom; and one of R
3
and R
3′
represents an amino group and the other represents a hydrogen atom.
通过施用治疗有效量的由式(I)代表的
6(5H)-菲啶酮衍
生物来治疗或预防可通过增强神经营养素的作用来治疗或预防的疾病的方法:
1
其中 R
1
, R
1′
, R
2
和 R
2′
各自独立地选自
氢原子和卤素原子组成的组;以及 R
3
和 R
3′
代表
氨基,另一个代表
氢原子。