You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule tert-butyl N-[1-[[2-(benzylamino)-1-(4-methylphenyl)-2-oxoethyl]-methylamino]-1-oxo-3-sulfanylpropan-2-yl]carbamate into molecular formula.
user
C25H33N3O4S
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