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 3-[1-[6-(ethylamino)pyrimidin-4-yl]piperidin-3-yl]-1-(4-methyl-1,4-diazepan-1-yl)propan-1-one into molecular formula.
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C20H34N6O
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