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-[(1R)-1-cyano-1-cyclopropylethyl]-2-[cyclopropyl-[2-(4-fluorophenyl)ethyl]amino]acetamide is given. What is its corresponding molecular formula?
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C19H24FN3O
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