You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-(2-methoxyethyl)-3-[5-[2-(2-methoxyphenyl)ethyl]-1,3,4-oxadiazol-2-yl]-N-propan-2-ylpropanamide into its molecular formula.
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C20H29N3O4
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