You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name 7-[[[4-(difluoromethoxy)-3-ethoxyphenyl]methyl-methylamino]methyl]-[1,3]thiazolo[3,2-a]pyrimidin-5-one into its molecular formula.
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C18H19F2N3O3S
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