You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[(2R)-2-(4-fluorophenyl)pyrrolidin-1-yl]-3-[5-[2-(2-methoxyphenyl)ethyl]-1,3,4-oxadiazol-2-yl]propan-1-one The above is the IUPAC name of a molecule. Write its molecular formula.
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