You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named ethyl (2Z)-2-[(3-bromo-4-methylphenyl)methylidene]-5-[4-(dimethylamino)phenyl]-7-methyl-3,5-dihydro-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate;formaldehyde by IUPAC nomenclature, provide its molecular formula.
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C27H30BrN3O3S
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