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 1-[4-methyl-2-[(1S,6R)-9-methyl-3,9-diazabicyclo[4.2.1]nonan-3-yl]pyrimidin-5-yl]ethanone into molecular formula.
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C15H22N4O
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