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-[6,6-difluoro-3-(3-methyl-1,2,4-oxadiazol-5-yl)-5,7-dihydro-4H-1-benzothiophen-2-yl]cyclohexene-1-carboxamide into molecular formula.
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C18H19F2N3O2S
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