You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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3-(2-amino-5-chloro-6-methylpyrimidin-4-yl)-N-[[(2R)-4-methylmorpholin-2-yl]methyl]benzamide is the IUPAC name of a molecule. Please give its molecular formula.
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C18H22ClN5O2
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