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 4-(4-methyl-2-oxochromen-7-yl)-4-azatricyclo[5.2.2.02,6]undec-8-ene-3,5-dione is given. What is its corresponding molecular formula?
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C20H17NO4
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