You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named N-(2-cyanopyridin-4-yl)-2-[(3R)-4,4-difluoro-3-methylpiperidin-1-yl]-6-(trifluoromethyl)pyridine-3-carboxamide is given. What is its corresponding molecular formula?
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C19H16F5N5O
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