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-bromo-2-[(6-bromo-4-oxo-2-propan-2-ylquinazolin-3-yl)iminomethyl]-6-nitrophenyl] acetate is given. What is its corresponding molecular formula?
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C20H16Br2N4O5
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