You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule methyl (2R)-2-[(5E)-5-[(3-fluoro-4-pyrrolidin-1-ylphenyl)methylidene]-2,4-dioxo-1,3-thiazolidin-3-yl]propanoate into molecular formula.
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C18H19FN2O4S
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