You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named N-[(1R,2S,5S)-3-bromo-2-bicyclo[3.2.1]oct-3-enyl]-N-(2-methylprop-2-enyl)benzenesulfonamide by IUPAC nomenclature, provide its molecular formula.
user
C18H22BrNO2S
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