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 11-[2-oxo-2-(2-oxochromen-3-yl)ethyl]-2-oxa-5,6,7,10-tetrazatricyclo[10.2.2.14,7]heptadeca-1(15),4(17),5,12(16),13-pentaen-9-one is given. What is its corresponding molecular formula?
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C23H18N4O5
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