You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 5-(4-methoxyphenyl)-3-[4-(2-oxopyrrolidin-1-yl)piperidin-1-yl]-1,2-oxazole-4-carboxylic acid into its molecular formula.
user
C20H23N3O5
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