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 7,7-dimethyl-4-methylsulfanyl-2-phenyl-1-(2-phenylethyl)-5,8-dihydropyrano[4,3-d]pyrimidin-1-ium into molecular formula.
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C24H27N2OS+
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