You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 3-[(3S)-3-hydroxy-3-[(E,2R)-6-[(2S)-2-(hydroxymethyl)pyrrolidin-1-yl]-6-oxohex-3-en-2-yl]-2-oxo-1H-indol-5-yl]-1,3-oxazolidin-2-one by IUPAC nomenclature, provide its molecular formula.
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C22H27N3O6
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