| CPC H10K 85/636 (2023.02) [C07D 251/24 (2013.01); C09K 11/06 (2013.01); H10K 85/626 (2023.02); H10K 85/631 (2023.02); H10K 85/653 (2023.02); H10K 85/654 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); C07B 2200/05 (2013.01); C09K 2211/1018 (2013.01); H10K 50/11 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 2101/10 (2023.02); H10K 2101/90 (2023.02)] | 14 Claims |

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1. A compound represented by Formula 1:
![]() wherein:
1) Ar1 is hydrogen, deuterium, or a C6-C12 aryl group;
2) R1 is hydrogen, deuterium, or a C6-C18 aryl group, and where a is 2 or more, R1 is in plural being the same or different from each other, and adjacent groups may be bonded to each other to form a C6 ring;
3) R2, R3 and R4 are each independently hydrogen, deuterium, or a C6-C18 aryl group, and where b, c, and d are 2 or more, R2, R3 and R4 are each in plural being the same or different from each other;
4) A is an integer of 0 to 4, b is an integer of 0 to 6, c and d are each independently an integer of 0 to 7.
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