The present invention provides a compound which enhances the production of erythropoietin. The present invention provides a compound represented by formula (1):
[wherein, R
1
: formula (1A):
[wherein, R
4
and R
5
: H, halogen, or alkyl; R
6
: H, halogen, alkyl, or the like; R
7
: substitutable hydroxyalkyl, substitutable hydroxyhalo alkyl, substitutable alkoxyalkyl, or the like; substituent group α: oxo, hydroxy, amino, or the like; ring Q
1
: a monocyclic heterocyclic group; ring Q
2
: a monocyclic hydrocarbon ring group, or a monocyclic heterocyclic group; ring Q
3
: a monocyclic hydrocarbon ring group, or a monocyclic heterocyclic group; X: a single bond, methylene, ethylene, or the like]; R
2
: alkyl, or methylsulfanyl; and R
3
: H, or methyl], or the like.
本发明提供了一种增强促红细胞生成素产生的化合物。本发明提供了一种由式(1)表示的化合物:[其中,R1:式(1A):[其中,R4和R5:H、卤素或烷基;R6:H、卤素、烷基或类似物;R7:可替换的羟基烷基、可替换的羟基卤代烷基、可替换的烷氧基烷基或类似物;取代基α:氧代、羟基、
氨基或类似物;环Q1:单环杂环基;环Q2:单环碳氢环基或单环杂环基;环Q3:单环碳氢环基或单环杂环基;X:单键、亚甲基、
乙烯基或类似物];R2:烷基或甲基
硫基;R3:H或甲基,或类似物。