PYRIDONE DERIVATIVE

摘要

Disclosed is a pyridone derivative represented by the following formula (I). [In the formula, R1 and R2 may be the same or different and respectively represent H or the like, or alternatively R1 and R2 may form an aliphatic nitrogen-containing heterocyclic group together with N to which they are bonded; X1-X3 may be the same or different and respectively represent a methine group or N but all of X1-X3 are not Ns at the same time; X4-X7 may be the same or different and respectively represent a methine group or N but three or more of X4-X7 are not Ns at the same time; Y1 and Y3 may be the same or different and respectively represent a single bond, -O-, -NR-, -S- or the like; Y2 represents a lower alkylene group or the like; R represents H or the like; L represents a methylene group; Z1 and Z2 may be the same or different and respectively represent a single bond or a lower alkylene group; or alternatively R1, L and Z2 may form an aliphatic nitrogen-containing heterocyclic group together with N to which R1 is bonded; and Ar represents an aromatic carbocyclic group or the like.]