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 N-[[(5S)-3-[4-(1-ethanethioyl-1,2,5-triazepan-5-yl)-3,5-difluorophenyl]-2-oxo-1,3-oxazolidin-5-yl]methyl]acetamide into molecular formula.
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C18H23F2N5O3S
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