| abstract |
Disclosed is a compound which enhances the activity of neurotrophic factors and exerts a protective action on nerve cells. Specifically disclosed is a compound represented by formula (I), a pharmaceutically acceptable salt thereof or a solvate thereof. In the formula, Z represents N or C-R; X represents N-R, O or S; Y represents C-R or N; R represents a hydrogen atom, an optionally substituted non-cyclic hydrocarbon group or an optionally substituted cyclic group; R represents a hydrogen atom, an optionally substituted non-cyclic hydrocarbon group or an optionally substituted cyclic group; R represents a hydrogen atom or a substituent; R represents a hydrogen atom or a substituent; ring A represents an optionally substituted benzene ring; and ring B represents an optionally substituted benzene ring. |