You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-(2-ethoxyethyl)-5-oxo-[1,3,4]thiadiazolo[3,2-a]pyrimidin-7-yl]methyl 2-bromobenzoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H16BrN3O4S
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