You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[5-bromo-6-(2-hydroxyethoxy)pyrimidin-4-yl]-2-oxa-6-azaspiro[3.3]heptane-6-sulfonamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C11H15BrN4O5S
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