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-(dimethylamino)-2-phenyl-6,8-dihydro-5H-pyrido[3,4-d]pyrimidin-7-yl]-2-hydroxybutan-1-one into molecular formula.
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C19H24N4O2
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