You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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N-[(4-methoxyphenyl)methyl]-3-[3-(4-pyrrolidin-1-ylphenyl)-1,2,4-oxadiazol-5-yl]propanamide is the IUPAC name of a molecule. Please give its molecular formula.
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C23H26N4O3
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