You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name N,N-dimethyl-5-[5-[(2S)-1-[(4-methylphenyl)methyl]pyrrolidin-2-yl]-1,2,4-oxadiazol-3-yl]pyridin-2-amine into its molecular formula.
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C21H25N5O
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