You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named ethyl (2S,3S,4S)-4-(1,3-benzodioxol-5-yl)-1-[2-[3-bromopropyl(butyl)amino]-2-oxoethyl]-2-(4-methoxyphenyl)pyrrolidine-3-carboxylate by IUPAC nomenclature, provide its molecular formula.
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C30H39BrN2O6
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