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 (3S,3aS,6aS)-3-(3-bromo-5-ethoxy-4-hydroxyphenyl)-5-(4-chlorophenyl)-2-(3-nitrophenyl)-3a,6a-dihydro-3H-pyrrolo[3,4-d][1,2]oxazole-4,6-dione is given. What is its corresponding molecular formula?
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C25H19BrClN3O7
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