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system
Name the molecular formula for the molecule established as ethyl (2E,5S)-5-(4-acetyloxyphenyl)-7-methyl-2-[(4-methylphenyl)methylidene]-3-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate using the IUPAC nomenclature.
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C26H24N2O5S
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