You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 3-[(6-bromo-2,3-dihydro-1,4-benzodioxin-7-yl)methylsulfanyl]-N-(1-phenylethyl)propanamide into molecular formula.
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C20H22BrNO3S
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