New. Gamma. - hydroxybutyric acid receptor binding agent.A. Gamma. - hydroxybutyric acid receptor binder containing at least one selected from the group consisting of the compound represented by the general formula (1) or (2) and the derivative thereof as an active ingredient.In formula (1), R1 represents a hydrogen atom or hydroxyl group, R2 represents a methylol group or a carboxy group, and M represents an integer of 4 to 8. When m is 6, R2 represents a methylol group. ]In formula (2), R3 represents a hydrogen atom or hydroxyl group, R4 represents a methylol group or a carboxy group, and N represents an integer of 5 to 7. However, when R3 is a hydroxyl group, R4 represents a methylol group, R3 is a hydrogen atom and R4 is a methylol group, and N represents 6 or 7. ]No selection【課題】新たなγヒドロキシ酪酸受容体結合剤の提供。【解決手段】下記一般式(1)又は(2)で表される化合物及びその誘導体からなる群から選ばれる少なくとも1種を有効成分として含む、γヒドロキシ酪酸受容体結合剤。[式(1)中、R1は水素原子又は水酸基を示し、R2はメチロール基又はカルボキシ基を示し、mは4~8の整数を示す。ただし、mが6のときR2はメチロール基を示す。][式(2)中、R3は水素原子又は水酸基を示し、R4はメチロール基又はカルボキシ基を示し、nは5~7の整数を示す。ただし、R3が水酸基のときR4はメチロール基を示し、R3が水素原子でありかつR4がメチロール基のとき、nは6又は7を示す。]【選択図】なし