| abstract |
Disclosed is a compound represented by general formula (1) or a pharmacologically acceptable salt thereof, which is capable of promoting the production of erythropoietin. [In formula (1), R1 represents a group represented by -X-Q1, -X-Q1-Y-Q2 or -X-Q1-Y-Q2-Z-Q3; X represents a single bond, -CH2- or the like; Q1 represents a monocyclic or bicyclic hydrocarbon group which may have a substituent; Y represents a single bond, -CH2- or the like; Q2 represents a monocyclic or bicyclic hydrocarbon ring group which may have a substituent or the like; Z represents a single bond, -CH2- or the like; Q3 represents a phenyl group which may have a substituent or the like; R2 represents a C1-C3 alkyl group or the like; and R3 represents a hydrogen atom or the like.] |