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| - The heteroaryl group having 5 to 40 carbon atoms is a group of an aromatic ring containing at least one hetero atom selected from an oxygen atom, a nitrogen atom and a sulfur atom, and, as specific examples thereof, there can be mentioned a quinolyl group, a pyridyl group, a furyl group, a thienyl group, an oxazolyl group, a thiazolyl group, a benzo-oxazolyl group and a benzo-imidazolyl group.
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