You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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3-[5-[[(6-tert-butylpyrimidin-4-yl)amino]methyl]-3-oxo-1H-isoindol-2-yl]piperidine-2,6-dione is the IUPAC name of a molecule. Please give its molecular formula.
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C22H25N5O3
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