You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 6-[[5-bromo-2-[2-(4-butan-2-ylphenoxy)ethoxy]phenyl]methylidene]-5-imino-2-propyl-[1,3,4]thiadiazolo[3,2-a]pyrimidin-7-one .
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C27H29BrN4O3S
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