You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named (4,4-difluorocyclohexyl)-[3-[4-(dimethylamino)-6-methylpyridin-2-yl]pyrrolidin-1-yl]methanone by IUPAC nomenclature, provide its molecular formula.
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C19H27F2N3O
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