1234A compound useful as an AMPK activating agent is provided. A compound represented by formula (I) (wherein X represents a substituted or unsubstituted alkyl group a substituted or unsubstituted alkenyl group a substituted or unsubstituted alkynyl group a substituted or unsubstituted aryl group a substituted or unsubstituted heteroaryl group a substituted or unsubstituted cycloalkyl group a substituted or unsubstituted cycloalkenyl group or a substituted or unsubstituted heterocyclyl group R represents a hydrogen atom a halogen atom a cyano group a nitro group a carboxy group a substituted or unsubstituted alkyl group a substituted or unsubstituted alkenyl group a substituted or unsubstituted acyl group a substituted or unsubstituted carbamoyl group a substituted or unsubstituted alkylthio group a substituted or unsubstituted alkylsulfinyl group a substituted or unsubstituted alkylsulfonyl group or a substituted or unsubstituted alkyloxycarbonyl group R represents a halogen atom a substituted or unsubstituted alkyl group a substituted or unsubstituted alkenyl group a substituted or unsubstituted alkynyl group a substituted or unsubstituted aryl group a substituted or unsubstituted heteroaryl group a substituted or unsubstituted cycloalkyl group a substituted or unsubstituted cycloalkenyl group a substituted or unsubstituted heterocyclyl group or the like R represents a halogen atom a hydroxy group a cyano group a nitro group a carboxy group a substituted or unsubstituted alkyl group a substituted or unsubstituted alkenyl group a substituted or unsubstituted alkynyl group a substituted or unsubstituted aryl group a substituted or unsubstituted heteroaryl group a substituted or unsubstituted cycloalkyl group a substituted or unsubstituted cycloalkenyl group a substituted or unsubstituted heterocyclyl group or the like and R represents a hydrogen atom a halogen atom a hydroxy group a cyano group a nitro group a carboxy group a substituted or unsubstitu
