You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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(3-chloro-4-methylthiophen-2-yl)-[(2S)-2-(1,2,4-oxadiazol-3-yl)azepan-1-yl]methanone is the IUPAC name of a molecule. Please give its molecular formula.
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C14H16ClN3O2S
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