You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-[[2-[2-(dimethylamino)ethoxy]pyridin-4-yl]methyl]-2-(5-methyl-1,3,4-oxadiazol-2-yl)benzamide into its molecular formula.
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C20H23N5O3
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