Patent ID: 8889270

Claim:
A heterocyclic compound represented by Formula 1 below: wherein in Formula 1, R 1 and R 2 are each independently selected from the group consisting of a hydrogen atom, a deuterium atom, a substituted or unsubstituted C 1 -C 60 alkyl group, a substituted or unsubstituted C 2 -C 60 alkenyl group, a substituted or unsubstituted C 2 -C 60 alkynyl group, a substituted or unsubstituted C 3 -C 60 cycloalkyl group, a substituted or unsubstituted C 1 -C 60 alkoxy group, a substituted or unsubstituted C 6 -C 60 aryloxy group, a substituted or unsubstituted C 6 -C 60 arylthio group, a substituted or unsubstituted C 6 -C 60 aryl group, a substituted amino group with a C 6 -C 60 aryl or C 3 -C 60 heteroaryl group, a substituted or unsubstituted C 3 -C 60 heteroaryl group, a substituted or unsubstituted C 6 -C 60 condensed polycyclic group, a halogen atom, a cyano group, a nitro group, a hydroxyl group, and a carboxyl group; and A and A′ are each a substituted or unsubstituted pyridine ring.