| CPC C07D 495/14 (2013.01) [H10K 10/484 (2023.02); H10K 85/6576 (2023.02)] | 18 Claims |

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1. A compound represented by Formula (1):
![]() where in Formula (1), X1 is an oxygen atom, a sulfur atom, a selenium atom, or a tellurium atom; X2 and X3, which may be the same or different, are each a carbon atom, an oxygen atom, a sulfur atom, a selenium atom or a tellurium atom, with the proviso that a case of X2 and X3 being simultaneously carbon atoms is excluded; R1 and R2, which may be the same or different, are each a hydrogen atom or an organic group, and R3 to R10, which may be the same or different, are each a hydrogen atom, a halogen atom, or an organic group; R3 and R4, R5 and R6, R7 and R8, R8 and R9, and R9 and R10 may each bond to each other to form a ring; and a double line including a dashed line represents a single bond or a double bond.
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