You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-[(6-amino-1-butyl-2,4-dioxopyrimidin-5-yl)-(3-methylbutyl)amino]-N-(2-methylbutan-2-yl)acetamide into molecular formula.
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C20H37N5O3
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