| 摘要 |
A quinone compound represented by formula (1) or (2) below: (wherein X1 to X4 independently represents an oxygen atom, sulfur atom or N-R1; R1 represents a hydrogen atom, alkyl group, aryl group or heterocyclic group; Ar1 to Ar4 independently represents an atomic group necessary for forming an aromatic ring or aromatic rings, where at least one of such aromatic rings formed by Ar1 and Ar2 and at least one of such aromatic rings formed by Ar3 and Ar4 have substituent selected from the group consisting of alkylthio group, arylthio group, heteroarylthio group and -N(R2)(R3) group; and R2and R3 independently represents a hydrogen atom, alkyl group, aryl group or heterocyclic group, where R2 and R3 may be linked together to form a ring) was disclosed.
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