The present invention provides compounds which promote erythropoietin production. Compounds represented by the following general formula (1) or pharmacologically acceptable salts thereof are provided: [wherein, R 1 represents a group -X-Q 1 , X-Q 1 -Y-Q 2 or -X-Q 1 -Y-Q 2 -Z-Q 3 , X represents a single bond, -CH 2 - or the like, Q 1 represents a monocyclic or bicyclic heterocyclic group which may have substituent(s), Y represents a single bond, -CH 2 -, or the like, Q 2 represents a monocyclic or bicyclic hydrocarbon ring group which may have substituent(s) or a monocyclic or bicyclic heterocyclic group which may have substituent(s), Z represents a single bond, -CR 11 R 12 - or the like, R 11 and R 12 each independently represents a hydrogen atom, a halogen atom or the like, Q 3 represents a phenyl group which may have substituent(s), a C 3 -C 7 cycloalkyl group which may have substituent(s), a C 3 -C 7 cycloalkenyl group which may have substituent(s) or a monocyclic or bicyclic heterocyclic group which may have substituent(s), R 2 represents a C 1 -C 3 alkyl group or the like, and R 3 represents a hydrogen atom or a methyl group].
