| 摘要 |
A compound represented by the following Formula (1): wherein, Het1 represents a bivalent five- or six-membered aromatic heterocyclic residue and may further be substituted; Xa to Xd each independently represent a heteroatom and may further be substituted; Ya to Yf each independently represent a heteroatom or a carbon atom and may further be substituted; the ring bound to Het1 may have a double bond at any position
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