You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule propan-2-yl 6-methyl-4-(3-nitrophenyl)-2-[(4-nitrophenyl)methylsulfanyl]-1,4-dihydropyrimidine-5-carboxylate into molecular formula.
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C22H22N4O6S
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