You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-benzyl-2-[(4-bromophenyl)sulfonyl-(oxolan-2-ylmethyl)amino]-N-(thiophen-2-ylmethyl)acetamide into molecular formula.
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C25H27BrN2O4S2
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