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-[5-[[4-butyl-1-(5-methoxypyrimidin-2-yl)-2-methyl-6-oxopyrimidin-5-yl]methyl]pyridin-2-yl]-N'-hydroxybenzenecarboximidamide into molecular formula.
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C27H29N7O3
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