You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 5-(6-chloro-1H-indol-3-yl)-1-[(4-ethyl-3-fluorophenyl)methyl]-4-[4-(hydroxymethyl)piperidine-1-carbonyl]-4-phenylsulfanylpyrrolidin-2-one by IUPAC nomenclature, provide its molecular formula.
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C34H35ClFN3O3S
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