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-[7-(5-methylpyridine-3-carbonyl)-7-azaspiro[3.5]nonan-2-yl]methanesulfonamide;2,2,2-trifluoroacetic acid into molecular formula.
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C18H24F3N3O5S
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