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 N-[2-[4-[6-(4-methylpiperazin-1-yl)pyrimidin-4-yl]piperazin-1-yl]-2-oxoethyl]benzamide into molecular formula.
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C22H29N7O2
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