You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 6-benzyl-3-[(7-methylimidazo[1,2-a]pyridin-2-yl)methyl]-3,6-diazabicyclo[3.2.2]nonan-7-one is given. What is its corresponding molecular formula?
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C23H26N4O
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