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-[(4-bromophenyl)methyl]-N-[(2S)-1-(2-methylpropylamino)-1-oxopropan-2-yl]-4-(N-methylsulfonylanilino)butanamide into molecular formula.
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C25H34BrN3O4S
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