| abstract |
The present invention provides a compound represented by formula (I), a pharmaceutically acceptable salt thereof or a solvate thereof. This compound is capable of specifically binding to an AMPA receptor, and shows extremely high brain uptake. (In the formula, each of A and Z independently represents CO, SO or SO2; each of X and Y independently represents S or O; each of R1-R4 independently represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group or a halogen group; each R5 independently represents an alkyl group, an alkenyl group, an alkynyl group or a halogen group; and n represents an integer of 0-4.) |