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 6-(1-bicyclo[2.2.2]octanyl)-2-methyl-4-[[(1R)-1-[2-methyl-3-(trifluoromethyl)phenyl]prop-2-ynyl]amino]pyrido[4,3-d]pyrimidin-7-one into molecular formula.
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C27H27F3N4O
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