The present invention provides a compound useful as AMPK activating agent. Namely, the present invention provides a compound of the following formula, its pharmaceuticallly acceptable salts, or solvates thereof.(wherein,is:R1 each is independently halogen, hydroxy, cyano, nitro, carboxy, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, etc. m is an integer of 0~3 R2 is hydrogen or substituted or unsubstituted alkyl X is -O- Y is substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl).本發明提供在做為AMPK活化劑上有用之化合物,係為下式所示之化合物、其製藥上容許之鹽或此等之溶劑合物,該式如下:(式中,所示之部分為:R1各自獨立為鹵素、羥基、氰基、硝基、羧基、經取代或未經取代之烷基、經取代或未經取代之烯基等;m為0~3之整數;R2為氫或者經取代或未經取代之烷基;X為-O-;Y為經取代或未經取代之芳基或者經取代或未經取代之雜芳基)。