The present invention provides a compound represented by general formula (1) or a pharmacologically acceptable esters thereof or a pharmacologically acceptable salts thereof, which is capable of promoting the production of erythropoietin.[In formula (1), R1represents a group represented by formula (1A)[In formula (1A), R4, R5represent a hydrogen atom, a halogen atom, an alkyl group； R6represents a hydrogen atom, a halogen atom, an alkyl group or the like； R7represents an optionally substituted hydroxyalkyl group, an optionally substituted hydroxyhalogenoalkyl group, an optionally substituted alkoxyalkyl group or the like； and the substituent group α represents an oxo group, a hydroxy group, an amino group or the like； ring Q1represents a monocyclic heterocyclic group； ring Q2represents a monocyclic hydrocarbon ring group, a monocyclic heterocyclic group； ring Q3represents a monocyclic hydrocarbon ring group, a monocyclic heterocyclic group； X represents a single bond, a methylene group, an ethylene group or the like]； R2represents an alkyl group, a methylsulfanyl group； and R3represents a hydrogen atom, a methyl group].本發明提供一種增強紅血球生成素產生之化合物，其係以式(1)所代表之化合物等：[在式(1)中，R1：式(1A)[式(1A)中，R4、R5：H、鹵素、烷基；R6：H、鹵素、烷基等；R7：可經取代之羥基烷基、可經取代之羥基鹵烷基、可經取代之烷氧基烷基等；取代基群α：側氧基、羥基、胺基等；環Q1：單環之雜環基；環Q2：單環之烴環基、單環之雜環基；環Q3：單環之烴環基、單環之雜環基；X：單鍵、亞甲基、伸乙基等]；R2：烷基、甲基硫烷基；R3：H、甲基]。
