You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 2-methyl-2-[[2-methyl-1-oxo-1-(3-oxopent-4-enylamino)propan-2-yl]diazenyl]-N-(3-oxopent-4-enyl)propanamide into molecular formula.
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C18H28N4O4
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