You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 3-(4-cyanophenyl)-N-(8-methylsulfonyl-8-azabicyclo[3.2.1]octan-3-yl)propanamide is given. What is its corresponding molecular formula?
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C18H23N3O3S
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