You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named [2-[(6-amino-1-benzyl-2,4-dioxopyrimidin-5-yl)-propylamino]-2-oxoethyl] 3-methylbut-2-enoate is given. What is its corresponding molecular formula?
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C21H26N4O5
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