You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[(4R)-1-(4-methoxyphenyl)-3-(3-methylbutyl)-2,5-dioxoimidazolidin-4-yl]-N-phenylacetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H27N3O4
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