| 摘要 |
本发明为下述式(1)所表示之化合物。;(式(1)中，环Ar表示芳香环或杂环等。R1表示脂肪族烃基、烷基磺醯基或烷羰基、烷氧羰基或芳羰基等。R2及R3分别独立地表示氢原子或芳香族残基等。R4表示氢原子或脂肪族烃残基。X1及X2分别独立地表示氮原子等。Y1及Y2分别独立地表示硫原子、氧原子或硒原子等) A compound represented by the following formula 1, wherein a ring Ar is an aromatic ring or a heterocyclic ring, etc. R1is an aliphatic hydrocarbon group, an alkylsulfonyl group, or an alkylcarbonyl group, an alkoxycarbonyl, or arylcarbonyl group, etc. R2and R3are each independently a hydrogen atom or an aromatic residue, etc. R4is a hydrogen atom or an aliphatic hydrocarbon residue, etc. X1and X2are each independently a nitrogen atom, etc. Y1and Y2are each independently a sulfur atom, an oxygen atom, or a selenium atom, etc. |
