Provided is a compound which is able to enhance production of an erythropoietin.Provided is a compound represented by formula (1)[in the formula (1), R1: formula(1A)[in the formula(1A) ,R4, R5: H, halogen, alkyl R6: H, halogen, alkyl, etc. R7: substitutable alkanoyl alkyl, substitutable [(alkoxycarbonyl) amino]alkyl, substitutable [(alkyl carbamoyl)oxy] alkyl, etc. substituent groups α: oxo, hydroxy, amino, etc. ring Q1: monocyclic heterocycle ring Q2: monocyclic hydrocarbon ring group, monocyclic heterocycle ring Q3: monocyclic hydrocarbon ring group, monocyclic heterocycle X: single bond, methylene, ethylene R2: alkyl, methylsulfanyl R3: H, methyl]本發明為提供一種增強紅血球生成素之產生的化合物。本發明提供以式(1)所表示之化合物等,[式(1)中,R1:式(1A)[式(1A)中,R4、R5:H、鹵素、烷基;R6:H、鹵素、烷基等;R7:可經取代之烷醯基烷基、可經取代之[(烷氧基羰基)胺基]烷基、可經取代之[(烷基胺甲醯基)氧基]烷基等;取代基群組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];R2:烷基、甲基硫烷基;R3:H、甲基]。
