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 (1S,3Z,4R)-1,7,7-trimethyl-3-[(naphthalen-1-ylamino)methylidene]bicyclo[2.2.1]heptan-2-one into molecular formula.
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C21H23NO
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