| 摘要 |
A quinone compound represented by formula (1) or (2) below:(wherein X<1 >to X<4 >independently represents an oxygen atom, sulfur atom or N-R<1>; R<1 >represents a hydrogen atom, alkyl group, aryl group or heterocyclic group; Ar<1 >to Ar<4 >independently represents an atomic group necessary for forming an aromatic ring or aromatic rings, where at least one of such aromatic rings formed by Ar<1 >and Ar<2 >and at least one of such aromatic rings formed by Ar<3 >and Ar<4 >have substituent selected from the group consisting of alkylthio group, arylthio group, heteroarylthio group and -N(R<2>)(R<3>) group; and R<2 >and R<3 >independently represents a hydrogen atom, alkyl group, aryl group or heterocyclic group, where R<2 >and R<3 >may be linked together to form a ring) was disclosed.
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