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-ethyl-N-[2-(ethylamino)-2-oxoethyl]-2-[2-oxo-3-(trifluoromethyl)pyridin-1-yl]acetamide is given. What is its corresponding molecular formula?
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C14H18F3N3O3
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