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 benzyl 4-(3-methoxyphenyl)-1,3-dioxo-2-phenyl-3a,4,6,7,8,8b-hexahydropyrrolo[3,4-a]pyrrolizine-8a-carboxylate is given. What is its corresponding molecular formula?
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C30H28N2O5
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